tryptophan

Bright light to reset circadian rhythm: a solution for jet lag (with melatonin) and for disturbed sleep caused by bile issues?

August 2, 2024 By Trudy Scott 28 Comments

The symptoms of jet lag cause distress to an increasing number of travelers. Potentially they may impair sleep,mood and cognitive performance. Critically timed exposure to bright light and melatonin administration can help to reduce symptoms.

Bright light is one of the most powerful synchronizers of human rhythms and melatonin serves as a ‘‘dark pulse’’ helping to induce nighttime behaviors. Thus, enhancing day and night signals to the brain, appropriate to the environmental light/dark cycle of the new time zone, can serve to reestablish adaptive timing relationships between the body’s internal biological rhythms and the external environment, and thereby reduce the symptoms of jet lag.

The above is from a paper published in 2002, Jet Lag: Minimizing It’s Effects with Critically Timed Bright Light and Melatonin Administration.

I came across this research just before my recent trip to Boston. I always use high dose melatonin to help with jet lag but because it was a business trip and I needed to be in top form as soon as I arrived, I was intrigued about the addition of bright light. So I purchased a light-weight 10,000 lux bright light panel and took it with me.

I was actually looking for solutions for my issues with a strange sleep pattern i.e. in waking in the early hours and not being able to get back to sleep on days when I would go to bed much earlier than usual. That pilot study found that “a brief course of morning bright light treatment had positive effects on subjective sleep quality, daytime sleepiness, and sleep timing in patients with primary biliary cholangitis.” And it led me to the jet lag research which is typical when you’re digging through the research!

The benefits for both situations – jet lag and disturbed sleep/bile issues – reinforced my decision and I’m so glad I got one. I love it! My jet lag results were better with the bright light and melatonin combined (with some caveats I share below). And I continue to use my light panel daily which means much improved sleep on those nights when I have to get to bed earlier. I am a hot mess when I don’t get a good 9 hours sleep and it’s something I continually work on.

I share more on both studies below, details on what timing is best for the bright light when traveling and at home, melatonin dosing (from the study and what I do) and how I plan to adjust things for my next long flight.

More from the jet lag study on bright light timing and melatonin

The jet lag paper talks about light being “one of the most powerful synchronizers of human circadian rhythms:

Light in the morning advances circadian rhythms and
Light in the evening delays circadian rhythms.”

And so the author shares different and very “specific recommendations using bright light and melatonin for eastward and westward travel before and after departure”and depending on “time zone changes of up to 6, 7-9 and 10 or more hours.”

These involve using the bright light either morning or night and likewise with the melatonin.

Since I was traveling eastbound from Sydney to Boston (21+ hours depending on the route) I should have followed those specific instructions.

How I used the bright light panel and melatonin

Instead, I kept it simple and 3 days before my departure I started using the bright light for 30 minutes in the morning and took 2.5 mg melatonin (and my other usual sleep solutions – see below).

When I arrived in Boston I had an afternoon nap and took 10mg of melatonin that first night – the usual increase in melatonin I use when doing long trips. For the duration of my time in Boston (a week), I used the light panel each morning for 30 minutes and 10mg of melatonin each night. And I did not experience any jet lag, other than feeling a little tired for about an hour each afternoon. I was waking earlier than usual (4am then 4:30am then 5am and then 6am) but was getting 8-9 hours of solid sleep.

I stopped in Hawaii and spent a week with my sister on the way home. I did the same even though the paper had different directions for flying westbound on a 12 hour trip. I was really tired on arriving and crashed early and still woke earlier than usual but had no jet lag.

I continue to use the light panel for 30 minutes each morning and am using 10mg melatonin (I’ll drop it down to 2.5mg soon – wild dreams are my clue I’m getting too much). My sleep has been solid since returning (other than an issue with cellulose in a new product I tried). My bedtime is earlier and I had a little less energy in the afternoons for the first 2 weeks.

We were sprayed with insecticide on the plane on arrival in Australia so I suspect that may have been a factor. (I am trying to get something done about this – I can’t actually believe this happens!)

You may wonder why I shared this study and what I did instead. Quite honestly, I was in a mad rush before I left and didn’t have time to work out the different recommendations. And I figured if I found it overwhelming others may too so let’s keep it simple.

That said, I’m impressed by the level of detail in the recommendations and may try to implement some of this on a future trip where I have some leeway if it doesn’t work. If you’ve done it per the recommendations in the above study please do let us know.

Morning bright light for disturbed sleep in primary biliary cholangitis

As I mentioned above, I had also just read the pilot study, Morning Bright Light Treatment for Sleep-Wake Disturbances in Primary Biliary Cholangitis. “Primary biliary cholangitis is a rare, immune-mediated cholestatic liver disease, mostly affecting women” where there is cholestasis or a decrease in bile flow, pruritus (itchiness) and fatigue. I don’t have this condition but do have bile issues and was experiencing a new sleep problem that my usual sleep protocol wasn’t helping.

I’ve always typically been a night owl, going to bed late and getting up late. However, I’m part of a new US-based Mastermind and with the time difference I have to get up at 5:30am two mornings a week for training sessions. I would go to bed 9 hours earlier and without fail would wake at 1am or 2am and not be able to get back to sleep.

I figured it may be liver/bile related so when I found the above paper I was very excited to give morning bright light a try. And it’s been working!

The pilot study reports these results: “a brief course of morning bright light treatment had positive effects on subjective sleep quality, daytime sleepiness, and sleep timing in patients with PBC.” This matches what I am experiencing on those early training days.

If you’re curious, I write about my current bile issues here: Ox bile as a supplement: to help counter the effects of dietary oxalates very likely caused by bile issues and poor fat digestion. I’m not suggesting it’s anything like primary biliary cholangitis other than something seems to be going on with my liver and bile production or bile quality. I will add that ox bile supplementation has reduced my daytime fatigue dramatically.

Interestingly, in other research, it was suggested that “pruritus of cholestasis is responsive to bright light in some patients” i.e, the itchiness that is experienced with chronic liver disease/bile issues.

My light panel and other sleep solutions

As I shared above, I am a hot mess when I don’t get a good 9 hours of sleep and it’s something I continually work on.

I took this photo in Boston in my hotel room. You can see the light panel and the nutrients I use at night on a regular basis. There are also 3 essential oils I use on the blue cloth (lavender, rose geranium and clary sage) and mouth tape. I always use an eye patch and only use earplugs when traveling.

I recorded a video discussing each of the above and why I use it and will share this as a separate post if there is interest.

The only change for this trip was the full spectrum light panel.

The full spectrum light panel I purchased and now recommend

This is the exact one I purchased (my Amazon link and above image from Amazon). It has 5 brightness levels but I’m only using the brightest one. It has a timer – 10, 20, 30, 40, 50 and 60 minutes. To be safe I started with 10 minutes, then went to 20 minutes the next day and then 30 minutes and have continued with this time. It also has 3 colors but I’ve only used the white so far.

I packed it in my suitcase in the original box and although it was a little bulky, it worked well to prevent it getting damaged.

If you already have a 10,000 lux full spectrum light box or lamp, it will provide similar results and also mood benefits if you experience the winter blues (more about that here). However the light-weight bright light panel is ideal for traveling.

Update Dec 2025:

If the above full spectrum light panel is not available here are some other comparable panel options and some lamp options too:

Verilux Happy Light Luxe – a light panel (my Amazon link)
Verilux Happy Light Alba – another light panel (my Amazon link)
Happy Light Therapy Lamp – a standing map for your living room, bedroom or office (my Amazon link)
Light Therapy Lamp – a desk lamp (my Amazon link)

Additional resources when you are new to using amino acids as supplements

As you can see I continue to use GABA and tryptophan to keep me sleeping well and anxiety-free.

For clients who may be considering using either one of these amino acids, I use the symptoms questionnaire to figure out if low low serotonin or other neurotransmitter imbalances may be an issue.

If you suspect low levels of any of the neurotransmitters and do not yet have my book, The Antianxiety Food Solution – How the Foods You Eat Can Help You Calm Your Anxious Mind, Improve Your Mood, and End Cravings, I highly recommend getting it and reading it before jumping in and using amino acids on your own so you are knowledgeable. And be sure to share it with the practitioner/health team you or your loved one is working with.

There is an entire chapter on the amino acids and they are discussed throughout the book in the sections on gut health, gluten, blood sugar control (this is covered in an entire chapter too), sugar cravings, anxiety and mood issues.

The book doesn’t include product names (per the publisher’s request) so this blog, The Antianxiety Food Solution Amino Acid and Pyroluria Supplements, lists the amino acids that I use with my individual clients and those in my group programs.

If, after reading this blog and my book, you don’t feel comfortable figuring things out on your own (i.e. doing the symptoms questionnaire and respective amino acids trials), a good place to get help is the GABA QuickStart Program (if you have low GABA symptoms too). This is a paid online/virtual group program where you get my guidance and community support.

If you are a practitioner, join us in The Balancing Neurotransmitters: the Fundamentals program. This is also a paid online/virtual program with an opportunity to interact with me and other practitioners who are also using the amino acids.

Wrapping up and your feedback

I’d love to hear from you – does any of this resonate with you? If yes, has full spectrum light therapy helped with jet lag? What light box or light panel do you use? And do you also travel with one?

Do you also use melatonin for jet lag and how much helps you? And what else is part of your sleep solutions?

Has bright light therapy improved your sleep if you have liver/bile issues? Has it prevented middle of the night waking?

If you’re a practitioner have you seen this research and seen bright light therapy help with jet lag and/or sleep disruption caused by liver/bile issues?

Feel free to share and ask your questions below.

I had chemotherapy and have not been able to get off sugar since. How long will it take 5-HTP or tryptophan to stop the cravings?

July 26, 2024 By Trudy Scott 4 Comments

Lauren shared her struggle with sugar cravings that started after chemotherapy, asking her question on a recent tryptophan/DPA cravings blog post:

If I try the tryptophan or the 5-HTP and one or the other works, how long will I need to take them for the sugar cravings to stop?

Back in 2021 I had been off sugar for 2 years and it was easy to get off by slowing eliminating sugar. The last elimination was from my coffee and then it was easy to stay away from sugar.

I had chemotherapy for 6 months in 2022. I have not been able to get off sugar since then. After chemo ended, I had the cravings and don’t know how to end the cravings.

Any advice from you would be appreciated.

The good news is that if you have cravings that are caused by low serotonin and you find your ideal dose of tryptophan or 5-HTP, you will notice reduced sugar cravings immediately and they will be further reduced with consistent use, typically a few times a day.

The key is to figure out if your cravings are caused by low serotonin and then it’s a matter of doing a trial of either tryptophan or 5-HTP (if you get results and other low serotonin symptoms improve it’s a clue you’re on track). And then you need to figure out the ideal dose for your unique needs. I share more about all this below and additional information about other types of cravings caused by neurotransmitter imbalances (and the respective amino acids that help).

Since her cravings struggles started after chemotherapy I also discuss possible impacts on neurotransmitters and also candida (sugar cravings are very common with the candida). Read on for my response to the above question from Lauren.

Sugar cravings caused by low serotonin: tryptophan or 5-HTP may offer immediate results

As I mentioned above you will notice reduced sugar cravings immediately with either tryptophan or 5-HTP if your cravings are caused by low serotonin. A big clue with low serotonin-type sugar or carb cravings is that they are more intense in the late afternoon and evening.

A good place to start (as always) is with the symptoms questionnaire. If there are other low serotonin symptoms such as feeling more anxious, worried, fearful with a low mood and irritability etc, that further confirms it’s worth doing a trial.

Some folks do better with one than the other but I have clients start with tryptophan and then switch to 5-HTP if their results are not as expected. In both instances we open the capsule or use powders or a chewable to get instant feedback on the benefits. So in that first session Lauren should be able to say “wow my cravings have reduced from 10/10 to 5/10” within 5-10 minutes. She may also report she feels more optimistic and less worried.

It is possible that her cravings are not caused by low serotonin or that they are a combination of a number of factors.

Sugar cravings caused by other neurotransmitter imbalances, and other amino acids to the rescue

We also look at sugar cravings caused by low GABA (stress eating because of physical tension), low endorphins (comfort eating or emotional eating), low dopamine (eating for an energy boost or improved focus) and low blood sugar (eating due to crankiness and irritability).

Lauren would know if any of the above may be factors based on her scores on the symptoms questionnaire i.e. scores for cravings and other symptoms. This offers further clarification:

If you eat sugar or carbs to feel happy (and especially from late afternoon into the evening) then your sugar cravings are likely due to low serotonin, and tryptophan (or 5-HTP) stops the cravings and boosts mood and reduces anxiety
If you stress-eat your sugar cravings are likely due to low GABA, and GABA will stop the stress-eating and calm you down
If you are a comfort-eater then it’s likely due to low endorphins and DPA will stop that feeling of “I deserve-it” kind of reward-eating or comfort-eating and also give you a hug-like mood boost
If you eat sugar for an energy boost or to give your focus then it’s likely due to low catecholamines and tyrosine will stop those cravings and give you a mood and energy boost, and help with mental clarity
If you have to eat sugar when you haven’t eaten in awhile it’s likely low blood sugar and glutamine on the tongue stops the sugar desire almost immediately and also helps with the low blood sugar symptoms of shakiness and irritability

As you can see there is an amino acid for each of these imbalances and it’s a matter of doing a similar trial for each one. With the correct dose, Lauren can expect quick results too, provided she finds the ideal dose for her needs.

This is the blog post Lauren posted her question on: Tryptophan and DPA (d-phenylalanine) for cravings and sleep issues (and a concern about 5-HTP and nightmares).

It’s one of many posts on the site about amino acids and sugar cravings so I encourage you to use the search feature of the blog.

Chemotherapy: impacts on serotonin and dopamine

Because chemotherapy has an impact on serotonin and dopamine, this may be where Lauren needs to start when considering which amino acids to trial. Here is some additional information on “chemobrain” or chemotherapy-induced cognitive impairment:

… a medical complication of cancer treatment that is characterized by a general decline in cognition affecting visual and verbal memory, attention, complex problem solving skills, and motor function. It is estimated that one-third of patients who undergo chemotherapy treatment will experience cognitive impairment.

Alterations in the release and uptake of dopamine and serotonin, central nervous system neurotransmitters that play important roles in cognition, could potentially contribute to impaired intellectual performance in those impacted by chemobrain.

And this may offer an explanation as to why she hasn’t been able to quit sugar since chemotherapy.

Chemotherapy, candida albicans and sugar cravings

If none of the above approaches reduce her cravings or if they do help to some extent but are not quite enough, we have to keep looking for root causes.

A big clue is that Lauren had been able to quit sugar using willpower in the past but has struggled since chemotherapy. It’s important to consider the role this may be playing. In cancer patients who have gone through chemotherapy there is increased susceptibility to Candida albicans, “a fungal commensal and a major colonizer of the human skin, as well as of the gastrointestinal and genitourinary tracts.” This is reported to be caused primarily by “chemotherapy-induced depression of innate immune cells and weakened epithelial barriers, which are the body’s first-line defenses against fungal infections.”

Sugar cravings are very common with candida and in some cases can be so severe that no amino acids will work until the candida is addressed. Interestingly, in one candida study, short exposure to serotonin resulted in antifungal activity so it’s possible that tryptophan or 5-HTP helps.

I don’t have my candida symptoms questionnaire on the blog but you can find a mini version on page 93 of my book, The Antianxiety Food Solution and additional information and my dietary/nutrient protocol in chapter 5 of my book.

The full candida questionnaire can be found in William G. Crook’s excellent book, The Yeast Connection and Women’s Health (my Amazon link).

Additional resources when you are new to using amino acids as supplements

As always, I use the symptoms questionnaire to figure out if low low serotonin or other neurotransmitter imbalances may be an issue.

Wrapping up and your feedback

I appreciate Lauren for posting her question on the blog so I can share and we all can learn.

Now I’d love to hear from you – does any of this resonate with you? If yes, what approach helped reduce your sugar cravings after chemotherapy?

If you’re a practitioner have you seen these approaches work well with your clients/patients?

Feel free to share and ask your questions below.

Tryptophan and DPA (d-phenylalanine) for cravings and sleep issues (and a concern about 5-HTP and nightmares)

June 21, 2024 By Trudy Scott 19 Comments

Thank you for all your work! I saw your talk in the Super Trauma conference and immediately went and read your book. I suspect I am low in all 3 neurotransmitters, and have noticed the biggest difference in supplementing with DPA (d-phenylalanine). I started taking all 3 supplements by swallowing and switched to taking them sublingually after I got used to the idea.

My question is about tryptophan in particular. I struggle with nightmares already so I am a bit wary of trying 5-HTP. I tried taking mid afternoon and before bed but it made me way too tired in the afternoon. Is it okay to just double the dose right before bed? How safe are these amino acids in higher doses? I was also wanting to add an evening dose of DPA to help with cravings. Thanks again!

I get many questions like this on the blog about using either 5-HTP with DPA or tryptophan with DPA together, for helping to improve sleep and ease sugar cravings. So today I’m sharing one of these questions and my insights in case you have a similar question. This will also give you the opportunity to ask questions you may have related to using these amino acids together and gain an understanding on how to tweak the amino acids for optimal results.

Read on for my response to the above question from Amanda. I also share more about 5-HTP and nightmares (and why she may also decide to use this amino acid too), vitamin B6 and nightmares, pyroluria, and how to figure out if your cravings are due to low endorphins or low serotonin (or a combination).

Should she add an evening dose of DPA?

It’s wonderful to hear that DPA is helping with Amanda’s comfort cravings/emotional eating and other low endorphin symptoms. As a reminder these include:

Heightened sensitivity to emotional pain
Heightened sensitivity to physical pain
Crying or tearing up easily
Eating to soothe your mood, or comfort eating
Really, really loving certain foods, behaviors, drugs, or alcohol
Craving a reward or numbing treat
PMS (premenstrual syndrome) or PMDD (premenstrual dysphoric disorder) *

(bookmark this symptoms questionnaire because it’s updated as new research is published and has more symptoms listed that what is included in my book)

And in case you’re new to DPA (d-phenylalanine), it is an amino acid that prevents the breakdowns of endorphins so we have more of these feel-good neurotransmitters.

I’m really glad she figured out it’s more effective when opened and used on the tongue rather than swallowing it. I share more about this here – How best to use the amino acid DPA for easing heart-ache, weepiness, comfort eating and a compulsive desire for food. It really can mean the difference between no results and great results.

Amanda asks about adding an evening dose of DPA to help with endorphin-related cravings too and also using tryptophan only at night. Keep in mind that afternoon and evening cravings are typically related to low serotonin and it’s best to trial one amino acid at a time so you know which is working for which symptom. If we were working together, I’d recommend figuring out her serotonin support first and then layering in an extra DPA (or possibly two) at night if it’s still needed.

In case you’re curious, I discussed low serotonin, low endorphins and low GABA in my interview at the Trauma Super Conference so she is also using GABA. Using this one sublingually is key and it helps with easing physical tension and stress eating.

What could her serotonin support look like?

Since tryptophan used mid afternoon and before bed made her way too tired in the afternoon she could consider a lower dose of tryptophan (midafternoon and evening) or could just trial one tryptophan after dinner to help with sleep and reduce after dinner cravings.

For some folks this is enough. If not, after a few days of tracking symptoms, she could increase to one tryptophan after dinner and another at bedtime or two tryptophan at bedtime if her symptoms are not down 2/10 or 3/10.

Her concern about 5-HTP and nightmares

Some folks do better on 5-HTP and some on tryptophan and she is getting results with tryptophan so doesn’t really have to worry about 5-HTP at this stage. However, I do want to address Amanda’s concern about 5-HTP and nightmares, because in the future she may want to consider 5-HTP.

She may find she does in fact need some serotonin support earlier in the day and 5-HTP in the afternoon may be the answer for her i.e. 5-HTP midafternoon and tryptophan in the early evening and/or at bedtime. It’s not unusual that we mix and match these two amino acids.

I’ve not had any clients report nightmares with 5-HTP, so I was surprised to hear this feedback on a Facebook thread, where a number of folks stopped using it for this reason. However, most folks on the same Facebook thread shared that 5-HTP works very well for them and does not cause nightmares. There is also research that supports the use of 5-HTP for night terrors. I suspect it may have to do with low vitamin B6 which we know contributes to poor dream recall and/or nightmares.

I share more about 5-HTP and nightmares here. And vitamin B6 and dream recall here.

I posed this question in the 5-HTP/nightmares blog: “Could it be that folks who get nightmares with 5-HTP, happen to also have pyroluria? Or perhaps they simply have low vitamin B6?” I have all my anxious clients supplement with vitamin B6 and/or P5P and this may be why nightmares with 5-HTP was news to me.

Vitamin B6 for neurotransmitter production and pyroluria

Since she does already struggle with nightmares, I’m not surprised she is concerned. However nightmares are a clue that someone may have low vitamin B6. This is typically picked up when I have clients do the pyroluria questionnaire on the intake form. Addressing low vitamin B6 is also important because it’s a cofactor for making the neurotransmitters and helps with hormone balancing.

I reminded her to read the pyroluria chapter in my book too. It includes the above questionnaire and detailed information on vitamin B6, zinc and evening primrose oil (all needed to address this condition that leads to feelings of being socially anxious).

How safe are these amino acids in higher amounts?

I share the top of the range for dosing all the amino acids in my book. This is typically 1500 mg tryptophan twice a day, 150 mg 5-HTP twice a day and 1500 mg DPA three times a day. Occasionally I have had clients need higher doses. The clue is symptom relief. We start low, monitor symptoms and adjust up as needed, and then down if no additional benefits are observed.

Using extra DPA at night for cravings?

As I mentioned above, I’d recommend figuring out serotonin support first (tryptophan only or a combination of 5-HTP and tryptophan) and then layering in an extra DPA (or possibly two) in the evening if it’s still needed for comfort cravings.

For some folks it’s very easy to identify comfort cravings (low endorphins) from worry/low mood cravings (low serotonin):

If you eat sugar or carbs to feel happy (and especially from late afternoon into the evening) then your sugar cravings are likely due to low serotonin, and tryptophan (or 5-HTP) stops the cravings and boosts mood and reduces anxious feelings
If you are a comfort-eater then it’s likely due to low endorphins and DPA will stop that feeling of “I deserve-it” kind of reward-eating or comfort-eating and also give you a hug-like mood boost

If it’s not easy to figure out the only way to know for sure is to do a trial of tryptophan and then do a trial of DPA and observe before and after feelings and the need to self-medicate with whatever the sugary treat is. Amanda may need one or the other at various times and she may even need both at certain times.

DPA and tryptophan product options

I recommend Lidtke EndorphiGen (which is DPA) and Lidtke Tryptophan 500mg. You can purchase these from my online store (Fullscript – only available to US customers – use this link to set up an account).

If you’re not in the US, these products are available via iherb: Doctor’s Best D-Phenylalanine (or DPA) and Life Extension Tryptophan 500mg (use this link to save 5%).

Additional resources when you are new to using amino acids as supplements

As always, I use the symptoms questionnaire to figure out if low endorphins or low serotonin or other neurotransmitter imbalances may be an issue.

If, after reading this blog and my book, you don’t feel comfortable figuring things out on your own (i.e. doing the symptoms questionnaire and respective amino acids trials), if you need serotonin support, the Serotonin QuickStart Program is a good place to start. This is a paid online/virtual group program where you get my guidance on using tryptophan and 5-HTP safely, and community support during 5 LIVE Q&A calls. You can sign up to be notified when the next live launch of this program is happening. We take a deep dive into product options including Lidtke products and others if you’re not able to access Lidtke.

Low GABA can also affect sleep and cause stress eating. If you also have low GABA symptoms, the next step to get help is the GABA QuickStart Program. This is also a paid online/virtual group program where you get my guidance and community support. Another option is the budget-friendly GABA QuickStart Homestudy program.

Wrapping up and your feedback

I’m thrilled Amanda is seeing these benefits with DPA, tryptophan and GABA and is fine-tuning her results even further. I appreciate her asking her questions on the blog so I can share and we all can learn.

Now I’d love to hear from you – does any of this resonate with you? If yes, which combination has worked best for you for emotional eating and sleep issues?

Is 5-HTP or tryptophan better for you and is vitamin B6 part of your supplement list.

If you’re a practitioner have you seen this combination work well with clients/patients?

Feel free to share and ask your questions below.

Berberine in perimenopause and menopause: improving mood, calming the anxious mind, and improving heart health, blood sugar and bone health

May 10, 2024 By Trudy Scott 15 Comments

… Berberine, an isoquinoline alkaloid derived from plants of the generis Berberis, has been recognized as being capable of decreasing oxidative stress, LDL, triglycerides, and insulin resistance and of improving the mood. This review describes the cellular and clinical effects associated with the use of berberine, which suggest that this molecule could be an effective natural supplement to ensure a smooth peri- and postmenopausal transition.

The above is from a paper published in 2015, Potential benefits of berberine in the management of perimenopausal syndrome.

These are just a few of the many benefits of berberine. Other research reports impacts on the microbiome, benefits for bone density and kidney health – all very relevant in perimenopause and menopause.

I feel that berberine may be a nutrient to consider, in addition to dietary changes, stress reduction and lifestyle changes, and targeted individual amino acids. Read on to discover some of the mechanisms and the benefits of using a comprehensive approach, and feedback from folks in the community who are using berberine with success.

Impacts on oxidative stress, blood sugar/insulin resistance, lipids and heart health, and mood

I encourage you to read the full paper in order to get an overview of the impacts on oxidative stress, blood sugar/insulin resistance, lipids and heart health, and mood. Here is a very high level summary:

Estrogen deficiency, increased cardiovascular risk, an “overproduction of reactive oxygen species (ROS)” and reduced nitric oxide (NO) which are important contributing factors when it comes to “menopause-related endothelial dysfunction, atherosclerosis, hypertension, cardiovascular, and renal diseases.” Berberine counters this via various mechanisms.
Type 2 diabetes is higher amongst menopausal women, causing high blood sugar and insulin resistance. This paper shares a study that found berberine “significantly lowered fasting blood glucose (FBG), hemoglobin A1c, triglycerides, and insulin levels in patients with Type 2 diabetes as well as metformin and rosiglitazone.” One way berberine does this is via “increased insulin receptor (InsR) messenger RNA and protein expression.”
“inactivity of LDL receptor (LDLR)” in liver cells leads to higher levels of oxidized LDL, a risk factor for “endothelial dysfunction and atherosclerosis.” One mechanism is that berberine improves LDLR expression and has lipid-lowering activity.
When it comes to mood issues, the increased oxidative stress, immune dysfunction and inflammation play a role because of “interactions between neurotransmitters, neuropeptides, oxidative and nitrosative stress, and cytokines.” Higher levels of inflammatory markers such as interleukin-6 (IL-6), C-reactive protein, interleukin-1-beta (IL-1β), and TNFα “can enter the brain and may cause alterations of the metabolism of serotonin and dopamine.” Berberine helps to counter this inflammatory cascade and “inhibits the expression of MAO” , increasing norepinephrine, serotonin, and dopamine – and improving mood and presumably reducing anxiety too.

Berberine benefits menopause — From: Potential benefits of berberine in the management of perimenopausal syndrome

Feedback from folks in the community

When I shared this research on Facebook I received much in the way of positive results.

Susan shared this: “A functional medicine doctor suggested I take it with every meal. My A1C was not bad, (5.3) but my last level was 4.8. This was over the course of about 1 year.”

Becky shared this: “I used it for about 6 months along with diet changes to drop my A1C. Have been holding steady since with dietary measures alone. I didn’t realize berberine also helped lower LDL. Mine is slightly elevated. Not enough that my traditional MD has called me on it, but I’ve adjusted my diet again and hearing this about berberine I think I’ll try going back on it.”

Liz shared this: “I had gained some caregiver weight so started on berberine twice a day and it was helpful. However my Doc quickly had me switch over to [a combination product with berberine, chromium and alpha lipoic acid] and it’s fabulous! Twice a day and I feel great, my carb cravings are at bay and my bloodwork and overall health has vastly improved in just a few months.”

Marcy shared this: “Yes!! My son had been steadily gaining weight from binge eating and medications. In October 2022 his triglycerides were through the roof and I was so worried about his health. I put him on 500 mg of Berberine twice a day. Fast forward to today, he has lost approximately 50 pounds and his triglycerides are normal. There were other factors that may have contributed to the weight loss such as therapy and more structured eating times, but I absolutely believe the Berberine supported all this!” (this was also a combination product with berberine and a small amount of alpha lipoic acid and grape seed extract)

Marcia shared this: “I’ve used Berberine for appetite suppression, which it seems to help with, though not enough for me to lose any weight. But it did also actually lift my mood, which I was not expecting.”

Berberine: the microbiota, the gut-brain connection and anxiety

The number of studies on berberine is impressive and growing by the day. It’s not discussed in the above paper, but this paper, Effects of Berberine on the Gastrointestinal Microbiota states this: “The mechanism underlying the role of berberine in lipid‐lowering and insulin resistance is incompletely understood, but one of the possible mechanisms is related to its effect on the gastrointestinal microbiota.” Given what we know about the gut-brain connection, this is another likely mechanism for mood and anxiety benefits.

In another paper, Berberine ameliorates ovariectomy-induced anxiety-like behaviors by enrichment in equol generating gut microbiota, the authors propose that the use of berberine “modulates the gut microbiota, stimulates equol production, and improves anxiety-like symptoms” … “suggesting a direct link between gut microbiota modulation and estrogen deficiency-induced anxiety.”

Berberine: osteoporosis and the kidneys

An osteoporosis study shows that berberine regulates “the estrogen and thyroid hormone signaling pathways to treat osteoporosis in a multi-target, multi-pathway, and multi-system manner.”

And berberine used in conjunction with calcium carbonate and vitamin D, helps to prevent drug-induced bone loss too: “berberine inhibits bone resorption and improves bone formation to prevent glucocorticoid-induced osteoporosis.” I’d be considering vitamin K and other approaches like working towards optimal homocysteine, addressing food sensitivities, addressing possible oxalate and gallbladder issues too. The latter are more common during and after perimenopause.

Interestingly berberine also improves kidney health. One study reports that berberine “significantly ameliorated chronic kidney disease by altering the composition of the gut microbiota and inhibiting the production of gut-derived uremic toxins.”

A comprehensive approach that includes amino acids

As I mentioned above, I feel that berberine may be a nutrient to consider, in addition to dietary changes, stress reduction and lifestyle changes, and targeted individual amino acids. Berberine is relatively new to me and not covered in my book “The Antianxiety Food Solution” but it’s a great resource for the rest.

Here are are few blog posts specific to amino acids in perimenopause and menopause:

The good news is that the amino acids provide immediate relief while the berberine is slower-acting and starting to have an impact.

Product recommendation: Thorne Berberine

There are many good berberine products available. I did some reading and research and landed on Thorne Berberine.

It is available from my online store (Fullscript – only available to US customers – use this link to set up an account) and it’s available via iherb (use this link to save 5%).

If you’re new to berberine, be sure to discuss the research and if it may be something to consider with your practitioner.

Additional resources when you are new to using amino acids as supplements

As always, I use the symptoms questionnaire to figure out if low GABA or other neurotransmitter imbalances may be an issue.

Wrapping up and your feedback

I do always appreciate feedback from the community and being able to share it on the blog.

Now I’d love to hear from you – have you used berberine with success? How much have you used, which product and how has it helped?

Were you aware of all these benefits?

Have you also used amino acids and dietary approaches as you start to see hormonal shifts?

If you’re a practitioner do you berberine with your clients/patients?

And please let me know if it’s helpful that I’m now including product recommendations and where to get them.

Feel free to share and ask your questions below.

Collagen causes anxiety and sleep problems for some people. I would never have connected the dots but apparently I am one of those people.

March 1, 2024 By Trudy Scott 13 Comments

Thank you for solving my sleeping problem! I would never have connected the dots regarding collagen causing anxiety and sleep problems for some people, but apparently I am one of those people.

Although I would fall asleep instantly at bedtime, I would wake up 3 or 4 hours later and while my body was tired, my mind was wide awake and I was unable to go back to sleep for at least 2 or 3 hours. I would think about all the things I needed to do and the challenges I was having. These things would not bother me as much in the day. No matter what I tried – like praying and listening to calming music, I could not shut off my anxious thoughts.

Then it occurred to me that when I go out of town to visit my family, I sleep better. After hearing Trudy’s collagen presentation on the Osteoporosis Summit, I connected the dots! For the last 6 months, I have been putting about 10 grams of Vital Protein collagen in my coffee each morning. I don’t take the collagen with me when I travel. So I stopped using it and lo and behold, I am sleeping the best sleep I have slept in a long time! I even look forward to going to sleep.

So I thank you Trudy from the bottom of my heart for enlightening me. And Margie, I thank you for the wonderful Summit you put together with so much great information. I would still be sleep deprived if it wasn’t for you both!

I was so pleased to receive this lovely thank you email from Merrilyn (sent to me and summit host Margie Bissinger) and said how happy I am for her. I asked if I could share her feedback as a new blog so we can enlighten others who may have similar issues and because it’s an opportunity to share some of sleep/collagen research that supports a possible mechanism. She kindly said yes and answered my questions:

How long had you been using collagen and how long after starting it did the sleep issues start?
And how quickly after stopping the collagen did your sleep improve?
Did you consider using tryptophan or 5-HTP so you could continue to use the collagen? And are you prone to low serotonin?

Read on for some background on the serotonin-lowering effects for some folks who consume collagen, Merrilyn’s responses to my questions, my insights, some of the research, and the tryptophan and 5-HTP products I recommend.

The original collagen/gelatin serotonin-lowering blog/research from 2017

I first addressed this potential cause for anxiety, mood and sleep issues in a blog in 2017 – Collagen and gelatin lower serotonin: does this increase your anxiety and depression?

Margie invited me to share this information and some of the research with those who are using it or planning to use it for osteoporosis. I’m so glad I accepted because clearly there are still folks who are not aware of the potential serotonin-lowering effects of collagen. And I’m sharing Merrilyn’s results via this new blog in case it’s also new to you.

Briefly, collagen and gelatin are used in tryptophan-depletion studies to lower serotonin levels. It does this because neither collagen or gelatin contain tryptophan. Some people seem to be adversely impacted by acute tryptophan depletion/ATD caused by collagen or gelatin consumption while others are not.

If this is all new to you, I encourage you to read the original blog and search for “collagen” to find other information on this topic on my site.

How long had you been using collagen and how long after starting it did the sleep issues start?

I asked how long she’d been using collagen and how long after starting it did she notice problems with her sleep. This wasn’t clear to her and many folks like Marrilyn unfortunately don’t connect the dots right away.

I started Vital Proteins collagen on July 1, 2023. I did mark that down because as I add supplements to my diet, I try to make notes and only do one at a time in case they cause a problem. I did note that I was not consistent with taking it daily and I was only taking 5 to 10 grams daily ( in my cup of coffee!).

I have always had a bit of a problem with waking up at night, but normally go right back to sleep. I can’t remember exactly when the sleeping problems worsened and I never connected them to collagen.

Seems like over time, the sleeping and waking up with ruminating thoughts was getting worse. I had started trying Tylenol PM or Advil PM, only taking 1/2 of one with one plain Tylenol or Advil to help me sleep and relieve any muscle tension from exercise. That did not always help. Taking a whole PM was better, but I felt groggy the next day. I don’t need any now that I have stopped the collagen.

How quickly after stopping the collagen did your sleep improve?

When the cause of waking in the night is due to low serotonin, it’s common to notice improvements very quickly after stopping collagen. This was the case with Merrilyn:

I would say my sleep improved immediately after stopping it. I realized that on the days I was out of town and didn’t take the collagen, I slept better. … but I attributed it to the fact that it is cooler there and my 6 year old grandson wears me out by the evening. I do not take the collagen with me and I had not connected this to the sleep pattern.

I returned home after one trip and started the collagen that next morning and the sleepless nights started again. I can’t remember when I listened to your talk, but I am guessing around January 18th, because I noted that I stopped after that day and according to my Fitbit and my memory, I slept great the night of January 19th and other than one night, I have slept well since.

I do want to commend Merrilyn for keeping a log of new supplements and sleep patterns. It’s something I recommend for all my clients.

Did you consider using tryptophan or 5-HTP so you could continue to use the collagen and are you prone to low serotonin?

I also asked if she considered using tryptophan or 5-HTP (some folks do better on one vs the other) so she could continue to use the collagen – she had not considered this. And I wanted to know if she has been prone to low serotonin or suspects low serotonin currently.

I do believe I am prone to low serotonin based on the little I have read in your book. I have thought about using tryptophan with the collagen and might later. For now, I just want to enjoy sleeping and focus on improving my diet.

I also have evenings when I crave sugar. I can do without it during the day, but evenings are worse. Something else to work on.

She’s referring to the low serotonin symptoms questionnaire in the amino acid chapter of my book, The Antianxiety Food Solution. It’s also on the blog here.

A big clue is the insomnia and anxiety caused by consumption of collagen, and also the evening cravings. There are cravings with all the neurotransmitter imbalances, with afternoon/evening cravings common with low serotonin.

It is possible Merrilyn’s anxiety and insomnia effects are for reasons other than low serotonin: glutamate, oxalate, arginine or a histamine reaction are all possible with collagen intake). Doing a trial of tryptophan or 5-HTP while consuming collagen would confirm a serotonin connection.

Osteoporosis, allergies, serotonin and coffee

Merrilyn also shared that she is in her early 70s and besides osteoporosis and allergies, is generally healthy and takes no prescription drugs. Interestingly, research finds there may be a role for 5-HTP (and presumably tryptophan) for allergies and asthma, so this may be another clue for her.

Of course, reducing her cravings – tryptophan and/or 5-HTP make it easy – will also improve her nutrient status of zinc, magnesium, iron, vitamin B6 and other B vitamins etc. all of which are key when it comes to osteoporosis.

Quitting coffee altogether will likely prevent any waking in the night – yes, even just one cup a day can make a difference – and also help improve the status of many of these nutrients. This is often the least favorite change my clients make but Merrilyn will read about all this in the caffeine chapter in my book and may find tyrosine helps her do so.

Research: Daytime tryptophan depletion altered night-time sleep

A paper published in 2002, Mid-morning tryptophan depletion delays REM sleep onset in healthy subjects, reports the following:

Rapid daytime tryptophan depletion in healthy volunteers significantly decreased plasma tryptophan levels during the day and the evening, followed by alterations in the characteristics of night-time sleep, including increased sleep fragmentation, REM sleep latency, and REM density during first sleep episode.

In this randomized double-blind cross-over study, participants received “a tryptophan-free mixture of amino acids at 10:30 am…. resulting in a 77% decrease and 41% decrease of serum tryptophan at 3:30 pm. and 9:30 pm.” Keep in mind that collagen is a blend of certain amino acids and is tryptophan-free.

The authors discuss the fact that serotonin is involved in sleep regulation but interestingly the mood of study participants was not affected.

Even more interesting is another study that found collagen used before bedtime improved sleep and cognitive function in physically active males. It’s possible it’s doing this because it is lowering serotonin that is too high.

Tryptophan and 5-HTP product options

Products I recommend include Lidtke 500 mg Tryptophan, and Pure Encapsulations 50 mg 5-HTP. You can purchase these from my online store (Fullscript – only available to US customers – use this link to set up an account).

If you’re not in the US, Doctor’s Best L-Tryptophan 500mg and Source Naturals 50 mg 5-HTP are products I recommend on iherb (use this link to save 5%).

Additional resources when you are new to using tryptophan or 5-HTP and other amino acids as supplements

We use the symptoms questionnaire to figure out if low serotonin or other neurotransmitter imbalances may be an issue for you.

Have you made the connection between your collagen consumption and anxiety/insomnia (or other low serotonin symptoms)?

Did you end up simply stopping collagen or have you successfully used it with tryptophan or 5-HTP?

If you’re a practitioner do you see this with your clients/patients who are prone to low serotonin?

And please let me know if it’s helpful that I’m now including product recommendations and where to get them?

Feel free to share and ask your questions below.

Using tryptophan and GABA amino acid supplements together for anxiety, sleep, ruminations and TMJ: questions and answers

February 23, 2024 By Trudy Scott 18 Comments

I am taking 250 mg tryptophan, 100-200 mg GABA. Tryptophan is helping with rumination. GABA is helping with feeling less tension in the body. I am also taking 500mg DPA. DLPA used to help me but I thought it was too stimulating so I’m trying DPA now. I couldn’t feel much when taking it on its own.

But the combination of tryptophan, DPA & GABA is generally helping me to feel less wound up. I still struggle with rumination and I have a really difficult time making decisions. I get really overwhelmed when I have a lot of decisions to make – it sends me in a tailspin and leads to more rumination. I’m not sure which amino acid would be good for that?

I generally have trouble relaxing and feeling calm and I feel the tension in my body. I am not sure if I should try increasing the dosage of one of the above?

I am wondering, is it important to take l-tyrosine to balance the tryptophan since tryptophan can lower dopamine over time? Or is the DPA enough since it’s a precursor to tyrosine?

I get many questions like this about using both tryptophan and GABA amino acid supplements together for easing anxiety and today I’m sharing some of these questions and my answers. This will also give you the opportunity to ask questions you may have related to using both these amino acids together. You’ll also read many success stories like the above and how to tweak the amino acids for optimal results.

Read on for my response to the above question from TT and other questions about using GABA and tryptophan together – how to measure GABA and serotonin levels for using with teens, adding tryptophan for sleep separately from GABA, how to test both for jaw clenching, and the precaution about serotonin syndrome.

My response and feedback for TT – adjustments for even better results

My response and feedback for TT … It’s wonderful that this combination is helping so much. It’s a great start but there are adjustments I’d consider to get even better results. The tryptophan dose is low, with a typical starting dose of 500mg so I’d consider increasing this a few times over a few weeks to see if the ruminations decrease even further. This may also help with the overwhelm and decision making.

Increasing the GABA over a few weeks (after the trial of increased tryptophan) may well improve her ongoing tension and inability to relax. I’d want to make sure she is using GABA sublingually for the best effects.

She asks about the need to take tyrosine to balance the tryptophan but I don’t have clients do this as a rule of thumb and only have clients take tyrosine if they have symptoms of low dopamine. In this instance since TT mentions difficulties with decision-making, a trial of tyrosine may be worth considering, after she has increased tryptophan and increased GABA. More about tyrosine benefits here.

I do want to mention that DPA is not a precursor to dopamine but DLPA does offer some dopamine support. I share more about the differences between DPA and DLPA here.

I want to give my teens GABA and tryptophan – how do I measure GABA and serotonin levels?

I have two teenagers ages 14 and 16 who suffer from anxiety and depression. My daughter has more difficulty with depression and my son with ruminating thoughts . My father had similar issues. We have tried supplements, and medications that help a little.

I want to try giving them GABA and tryptophan, but to make sure that they in fact meet the criteria you describe. Is there a lab test that measures GABA and serotonin levels? Also, how can I figure out the dose and times to give them?

Here is my feedback for Maria …. The best way to determine if someone may have low GABA/serotonin is to look at the low GABA/serotonin symptoms questionnaire (here is that link), rate 1 or 2 symptoms on a scale of 1-10 with 10 being worst, do an initial one-off trial of the respective amino acid and rate the symptoms again right afterwards (in the next 2 to 30 minutes). Based on this we decide if we’ll continue with the amino acid and how much to use.

Dosing is unique to each person’s needs and timing differs for each amino acid – tryptophan is best mid-afternoon and evening and GABA throughout the day and evening if needed too.

I don’t use the urinary neurotransmitter test as it’s not considered an accurate assessment. I blogged about this here.

It’s a comprehensive approach – amino acids AND diet. This mom mentions supplements and medications but nothing about what their diets are like right now – gluten-free, sugar-free, caffeine-free, eating protein at breakfast for blood sugar control, real whole foods, grass-fed red meat, wild fish, fermented foods etc?

I also suggest my book “The Antianxiety Food Solution” as a great place to start when you are new to the amino acids and other anxiety nutrition solutions like gluten/sugar/caffeine removal, blood sugar control, gut health, pyroluria etc.

And this blog is a wonderful example and gives hope to moms – Tryptophan for my teenager: she laughs and smiles, her OCD and anxiety has lessened, and she is more goal oriented and focused on school. It’s one of many similar blogs so be sure to use the search feature to find others.

GABA and theanine help my anxiety, if I add tryptophan for sleep should I take it separately?

I have taken Gaba and L-theanine for anxiety for the last few years on and off as recommended by a doctor, it really does help although I still have sleeping problems. I also have a lot of symptoms on your low serotonin list so if I add tryptophan to see if it helps with sleep should I take it with the Gaba or separately?

Here is my response and feedback for Diane … I was glad to hear GABA and theanine are helping with the anxiety. I have many clients with low serotonin and low GABA symptoms take GABA, theanine and tryptophan at bedtime at the same time for improving sleep that is caused by low serotonin.

Diane has already identified that she has a lot of low serotonin symptoms from the questionnaire, so like I shared for Maria above, a trial is worth considering.

We always want to capitalize on what is already working so when GABA/theanine is helping with anxiety and offers some help with sleep we will often increase that before considering a trial of tryptophan.

I’m assuming she is addressing dietary factors too and other root causes that may also affect her sleep – like low blood sugar and high cortisol.

Would GABA or tryptophan help with jaw clenching and how do I test to see if they would help?

Would Gaba or tryptophan help with jaw clenching, not grinding, which I assume is an anxiety thing even when I’m unaware of any anxiety? Since I already use Gaba on and off for anxiety or if I can’t sleep (only taking 200 mg) how would I go about testing tryptophan to see if it would help for clenching?

Here is my feedback for Diane … Jaw clenching/TMJ (temporomandibular joint) issues can be related to both low GABA because of the muscle tension and also when serotonin is low.

In the same way we do a trial with the amino acids for anxiety or low self-esteem (or another symptom like cravings) we would do a trial for the jaw clenching i.e. rate the severity on a scale of 1-10 with 10 being worst, do a trial of tryptophan and then GABA (separately) and rate the symptoms again right afterwards (in the next 2 to 30 minutes). And go from there, increasing each as needed (one at a time) and tracking symptom improvement.

Here is a case as an example: Tryptophan ends TMJ pain, headaches and worry, and improves mood and sleep.

Precaution about serotonin syndrome with tryptophan/5-HTP

There are precautions when using certain amino acids and I always review them with all my clients. If they have been prescribed an SSRI, I have them discuss the use of tryptophan/5-HTP with their prescribing doctor so they can be monitored for serotonin syndrome. With careful monitoring and doctor approval I feel comfortable having my clients use tryptophan/5-HTP 6 hours away from their one and only SSRI.

If they are using more than one SSRI and/or a combination of psychiatric medications, the use of tryptophan/5-HTP is not advised.

None of the above applied in these situations but it’s important to be aware of.

Tryptophan and GABA product options

Products I recommend include Lidtke 500 mg Tryptophan, Source Naturals GABA Calm lozenges and Now GABA Powder. You can purchase these from my online store (Fullscript – only available to US customers – use this link to set up an account).

If you’re not in the US, Doctor’s Best L-Tryptophan 500mg and Source Naturals GABA Calm lozenges and Now GABA Powder are products I recommend on iherb (use this link to save 5%).

Additional resources when you are new to using tryptophan or GABA and other amino acids as supplements

We use the symptoms questionnaire to figure out if low serotonin or low GABA or other neurotransmitter imbalances may be an issue for you.

This blog is a follow-on from the previous blog on this topic so be sure to read that blog too. It also features many valuable questions in the comments and my responses, hence this new post. I hope this has been helpful for you.

Wrapping up

Now I’d love to hear from you…

Have you had success using GABA and tryptophan together for anxiety, insomnia, ruminations, depression, overwhelm, TMJ etc?

Have you tweaked your dosing to find the ideal doses for your needs?

If yes, what doses and which products have helped?

If you’re a practitioner do you use tryptophan and GABA with clients/patients with these low serotonin and low GABA symptoms?

And please let me know if it’s helpful that I’m now including product recommendations and where to get them?

Feel free to share and ask your questions below.