serotonin

How the correct approach, dose and sublingual use of GABA can be calming and not cause a flushed and itchy face and neck

October 10, 2025 By Trudy Scott 12 Comments

I started GABA 750mg and think it gently chills out my anxiety a bit, however 20 minutes after I take it, I feel flushed and itchy in my face and neck. This lasts for 5 minutes and then goes away.

I am in a migraine program with a health coach who has referenced your book several times. She recommended I stop it because it sounds like an allergy. I personally would think it would last longer if it was an allergy.

What do you think? Have you heard of this reaction before? I thought it would maybe get better as my body gets used to taking it? I wanted to continue because I think it’s helping. Thank you.

Sharon posted the above feedback about her promising calming results with GABA and her flushed/itchy question on one of the blogs. She also asked this:

Just read other posts and I’m just beginning to learn all of this info on your site. I’m also getting your book. Looks like I may have started too high? Could I open up one of my capsules and just take powder orally and then work up?

Read on below to learn more about the fact that too much GABA does cause flushing; the correct approach, dose and sublingual use of GABA for Sharon; Holly’s similar story with 750mg GABA; and GABA, serotonin and endorphin support for Sharon’s other symptoms (headaches, migraines, PMS, sleep issues and rectal spasms); plus additional resources when are new to amino acids such as GABA, 5-HTP, DPA and others.

Too much GABA does cause a flush feeling

Firstly, it’s wonderful that GABA gently chills out Sharon’s anxiety a bit. And she is correct – her flush and itchy face and neck is unlikely to be an allergic reaction. Too much GABA does cause a niacin-like flush or tingling feeling and yes, I have heard of this reaction many times. Unfortunately it leads to many people giving up on GABA when they really do need it.

Sharon shared this: “I thought it would maybe get better as my body gets used to taking it?” Unfortunately, many individuals think the same and end up pushing through the discomfort and it’s not what I advise. She was wise in exercising caution and finding out by reading more on the blog, getting a copy of my book, The Antianxiety Food Solution and asking on the blog.

I have no idea why supplement companies produce such a high dose GABA product and it’s something I caution all my clients and GABA Quickstart program participants about.

The correct approach, dose and sublingual use of GABA for Sharon

Sharon also acknowledges she probably started with too high a dose and asks about opening up the GABA capsule and working her way up. This is exactly what we need to do to get results with GABA and not cause new issues.

Some other options to opening the GABA capsule could be:

a GABA only powder
a GABA sublingual product (such as GABA Calm)
a liposomal GABA product
a GABA cream (she reported migraines and neck tension so a cream may be a good option for her too)

I also have clients start with only one amino acid product and find the ideal dose before adding the next amino acid acid. And track results carefully so they can course correct, adjusting up or down as needed.

Sharon did come back and comment a week later sharing this adjustment she had made:

So I have been opening the GABA capsule and taking half a dose (so 375mg) on my tongue in the morning and then in the afternoon. I don’t notice the real calm like I did with the whole capsule though.

She’s on the right track and the next step could be to use three-quarters of a dose twice a day and see how that helps. Another option is half a dose, maybe 4 x day. There is no one-size fits all and it’s a matter of Sharon finding what works best for her unique needs.

Keep in mind that for some individuals even 375mg is too high a dose. I typically have clients start with 125mg GABA and less if they are super-sensitive.

Holly’s story with 750mg GABA is very similar

I’ve actually blogged about this before: Too much GABA causes a tingling niacin-like flush sensation (in the brain and body). It’s awful and very uncomfortable!) and shared Holly’s niacin-like flush result when using the same dose:

I experienced the niacin-like flush when I tried to go from GABA Calm [mostly dissolved in my mouth] to a pill form and didn’t realize the dosage would be way too high all at one time. The pill was 750 mg GABA [and swallowed with food], so it wasn’t going to work well anyway.

The flush lasted about 15-20 minutes. It was awful. I was sure I was going to throw up every time.

It took me a couple of weeks to figure out the cause. My therapist recommended your website and book and those helped me understand when to take it and why it would help.

When I eliminated the 750 mg GABA pill the symptoms completely went away.

Now I stick to GABA Calm. I take one in the morning and one before bed and sometimes one midday.

You can read more about this flush feeling on the above blog and another example.

GABA, serotonin and endorphin support for Sharon’s other symptoms

Sharon also has headaches, migraines, PMS, sleep issues and rectal spasms:

I’ve got chronic headaches and frequent migraines. Other weird symptoms are lip dermatitis, hormone imbalance, PMS, and rare rectal spasms which I saw referenced on your site too. Serotonin issues too and I also recently started 5-HTP 200mg at night which seems to be helping my PMS insomnia.

It’s great that 5-HTP is helping her PMS-related sleep issues. Both GABA and 5-HTP (for serotonin support) may help with her hormone balance, which in turn, may help with her headaches and migraines too. She may also want to consider a trial of d-phenylalanine/DPA for endorphin support/pain relief. GABA itself helps to ease neck tension and headaches.

GABA does stop very painful rectal spasms very quickly. More about this here – GABA lozenge relieves excruciating pelvic floor/rectal pain and spasms within 30 seconds: a solution for proctalgia fugax.

As I mentioned above, I have clients and those in the GABA Quickstart program start with GABA and find the ideal dose before adding the next amino acid acid. For Sharon, I’d recommend that she finds her ideal dose of GABA before bumping up her 5-HTP and adding DPA.

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

We use the symptoms questionnaire to figure out if low GABA (indicating a possible need for GABA or theanine) or low serotonin (indicating a need for tryptophan or 5-HTP) or low endorphins (indicating a possible need for DPA) or other neurotransmitter imbalances may be an issue for you.

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, sugar cravings, anxiety and mood issues. The importance of quality animal protein and healthy fats is also covered.

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). This is a paid online/virtual group program where you get my guidance and community support.

If you also need serotonin support, the Serotonin QuickStart Program is a good place to get help. This is also 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.

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.

Now I’d love to hear from you…

I appreciate Sharon and Holly for sharing their experiences and asking questions. I’m hoping their stories have enlightened you!

And I am thrilled that her migraine health coach referenced my book and told her about GABA. It’s a great book that many practitioners share with their clients and patients.

Have you experienced this uncomfortable feeling when using too much GABA? And did you learn to use less in order to get the calming benefits of GABA?

How much do you find helps? And do you use powder or capsules opened or liposomal or cream?

Has serotonin or endorphin support helped too?

Feel free to share and ask your questions below.

The amino acid glutamine improves low mood by addressing gut health, and it has calming effects too

October 3, 2025 By Trudy Scott 2 Comments

Recent research has shown that the amino acid glutamine can positively affect gut health by supporting the gut microbiome, gut mucosal wall integrity, and by modulating inflammatory responses.

As modulated by the vagus nerve, via the enteric nervous system, the gut-brain connection can impact the brain’s neurochemical environment. Poor gut health can disrupt the balance of neurotransmitters, which can result in neuropsychiatric based conditions such as depression.

Glutamine supplementation may provide significant adjunctive nutritional support in cases of depression by promoting proper gut health and function.

The above is an excerpt from the paper, The role of glutamine in supporting gut health and neuropsychiatric factors, published in 2021.

The authors do note the fact that glutamine is a “fundamental precursor to the most prevalent neurotransmitters, GABA and glutamate.” This is why glutamine supplementation can be calming for many individuals and may sometimes be too stimulating for some folks. It also highlights the importance of biochemical individuality and why it’s important to find your ideal dose (more on that below).

I appreciate their call for more research on glutamine, “as well as studies which could explore using glutamine in concert with other supportive amino acids, such as GABA and tyrosine, in an effort to restore neurotransmitter equilibrium” (more on that below too).

Read on below to learn more about how glutamine directly supports gut health and what harms the gut; how to know if glutamine will be calming or too stimulating, and how much to use; and other clues that you may benefit from glutamine; and additional resources when are new to amino acids such as glutamine, GABA and others.

How glutamine directly supports gut health and what harms the gut

From the above paper, glutamine:

1) has a positive impact on sustaining the balance of the gut microbiome
2) increases the expression of tight junction proteins and the integrity of the intestinal lining (i.e. it heals leaky gut)
3) helps to minimize the inflammatory response in situations of gut mucosal irritation (i.e the inner most lining of the digestive tract).

The authors also discuss all of the many factors that are harmful for the gut: highly processed foods, refined sugars, saturated fat, and minimal healthy fatty acids and antioxidants; lack of probiotics and prebiotics; blood sugar swings; stress and high cortisol; medications and alcohol consumption. Much of this is addressed in my book “The Antianxiety Food Solution”

It’s well-worth reading the entire paper for a full understanding of the two-way gut-brain connection via the vagus nerve and the role of the microbiome when it comes to neurotransmitter production and much more.

How to know if glutamine will be calming or too stimulating, and how much to use

As mentioned above, the authors share that glutamine is a precursor to GABA, a calming neurotransmitter i.e. it is often calming.

Glutamine is also a precursor to glutamate and can be too stimulating for some, typically when very high doses are used.

The paper mentions studies that “observed the effects of glutamine supplementation used at doses of between 15 g and 30 g,” however my recommendation is to start low and slowly increase based on your unique need. I have clients and those in my programs start with 500 mg once a day and increase to 1-3 x 500 mg, up to 3 or 4 times a day.

The only way to know if it will be calming or stimulating is to do a trial alone i.e. with no other new supplements, and carefully track the effects.

I also find using glutamine powder and holding it for 1-2 minutes on the tongue is more effective and less is often needed. This has additional benefits of stopping intense sugar cravings in their tracks (more on this below).

Other clues that you may benefit from glutamine: symptoms of low blood sugar

As mentioned above, glutamine helps reduce intense sugar cravings, and prevents low blood sugar (which can actually cause anxiety and panic attacks). This aspect is not mentioned in the paper but addressing low blood sugar is yet another application of glutamine when it comes to anxiety and low mood.

Here are all the symptoms we see with low blood sugar:

Crave sugar, starch or alcohol any time during the day
Irritable, shaky, headachey – especially if going too long between meals
Intense cravings for sweets
Lightheaded if meals are missed
Eating relieves fatigue
Agitated, easily upset
Nervous, anxious, panic attacks

And here are some other blog posts that illustrate some of the above:

Together with low serotonin and low GABA, addressing low blood sugar is one of the most effective approaches I use with clients to help ease anxiety. We achieve this with the use of glutamine and by controlling blood sugar by starting the day with a breakfast that includes quality animal protein.

We may also use tyrosine if there are low dopamine symptoms and d-phenylalanine if there are low endorphin symptoms, in an “effort to restore neurotransmitter equilibrium.”

Additional resources when you are new to using glutamine, GABA or tyrosine, or other amino acids as supplements

We use the symptoms questionnaire to figure out if low blood sugar (indicating a possible need for glutamine) or low GABA (indicating a possible need for GABA or theanine) or low dopamine (indicating a possible need for tyrosine) or other neurotransmitter imbalances may be an issue for you.

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 and glutamine is covered in an entire chapter too), sugar cravings, anxiety and mood issues. The importance of quality animal protein and healthy fats is also covered.

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 need serotonin support, the Serotonin QuickStart Program is a good place to get help. This is also 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.

Now I’d love to hear from you…

Has glutamine helped you with your leaky gut, low mood and/or offered calming effects?

What about intense cravings for something sweet or irritability and poor focus? And other low blood sugar symptoms?

How much do you find helps? And do you use powder or capsules?

Are you interested in a program to learn more about the safe and effective use of glutamine and/or tyrosine?

Feel free to share and ask your questions below.

How can I help my anxious daughter withdraw from vaping? She wants to quit but gets more anxious when she tries to quit!

September 5, 2025 By Trudy Scott 2 Comments

withdraw from vaping

I have been trying to help my daughter withdraw from vaping but it is proving such a vicious cycle.

She wants to quit but has anxiety and gets health anxiety when she doesn’t use the vape within a certain period – the physical withdrawal signs come thru very quickly for her – rapid heart beat, pain inside etc. which freaks her out and then she vapes…

It’s a hopeless cycle of withdrawals with horrible physical symptoms and then the emotional frustration of using vaping to manage the symptoms and feeling so frustrated with herself.

We tried 5-HTP which did not help. I make sure she gets a great protein, veg, good fat and some carbs for breakfast and she takes home made food to work but she works in hospitality and has really late night / early morning finishes and I feel like we are dealing with a lot more than the addiction here. I’d love to try and find a way to get her use down and hopefully kicked to the kerb.

If we could put her into a deep deep sleep for a few days till the toxin is washed out of her system and have a way to deal with the emotional aspect of withdrawal I think myself and so many other parents in Australia would be grateful.

Vaping is a huge problem in our young people – it’s all thru the schools too. It doesn’t smell, tastes like lollies and parents can’t detect it easily.

Louise is a mom in the community who posted this question on one of the blogs. I feel for her and her daughter and hear her concerns – vaping is a huge problem. However, there is a solution that doesn’t involve putting her daughter into a deep deep sleep – addressing neurotransmitter imbalances as a root cause.

Read on below for information on vaping and the very harmful effects (on the lungs and even bones); how to figure out which emotions are driving the need to use vaping to self-medicate and which amino acids to trial (including my insights for Louise’s daughter); why the amino acids are so powerful when it comes to vaping and other addictions; dietary aspects are foundational and important too, as are really late nights; and additional amino acid resources.

What is vaping and why is it so harmful?

This 2023 Harvard Health Publishing article, Can vaping damage your lungs? What we do (and don’t) know, provides an overview of vaping if you’re not exactly sure what is involved:

Vaping involves heating a liquid and inhaling the aerosol into the lungs. With vaping, a device such as an e-cigarette is used that heats up a liquid (called vape juice or e-liquid) until it turns into a vapor that is inhaled. These devices are commonly called vapes, mods, e-hookahs, sub-ohms, tank systems, and vape pens. They may all look a bit different, but work in similar ways.

These devices heat up various flavorings, nicotine, marijuana, or other potentially harmful substances.

The authors list the potentially harmful substances found in vapes:

nicotine
ultrafine particles that can be inhaled deep into the lungs
flavorings such as diacetyl, a chemical linked to a serious lung disease
volatile organic compounds
cancer-causing chemicals
heavy metals such as nickel, tin, and lead.

And they explain some of the serious lung problems that occur in those who vape: EVALI (e-cigarette, or vaping, product use-associated lung injury) and “popcorn lung” or bronchiolitis obliterans (BO).

One adverse effect that I seldom see mentioned is the potential harms to bone health, including “accelerating bone associated disease progression, impacting skeletal development in younger users and to advise patients following orthopaedic surgery, dental surgery, or injury to maximise bone healing.”

Unfortunately it’s the flavors in nicotine and cannabis vape products – candy/dessert, fruit, and fruit-ice combination vs tobacco flavor – that increased adolescents’ willingness to try them. “Comprehensive bans on flavored vapes would likely reduce adolescent use.”

There is growing awareness of these issues and fortunately rates of vaping are declining, however we do have to address why teens and young adults are seeking something calming or soothing such as vaping (or smoking or drinking) i.e. neurotransmitter imbalances.

How to figure out which emotions are driving the need to use vaping to self-medicate and which amino acids to trial?

This is how I would suggest this mom works with her daughter to help them figure out which emotions are driving the need to use vaping to self-medicate and which amino acids to trial:

How do you feel before vaping?	How do you feel after vaping?	Likely brain chemistry imbalance	Amino acid/s to supplement
Anxious or stressed (physical anxiety)	Calm or relaxed	Low GABA	GABA, pharmaGABA or theanine
Low mood, worried, fearful? (mental anxiety)	Happy or content	Low serotonin	Tryptophan or 5-HTP
Tired, unfocused, low motivation	Energetic, alert, or focused	Low catecholamines, low dopamine	Tyrosine
Desire for a reward or treat, sad (weepy), emotional	Rewarded or comforted	Low endorphins	DPA (d-phenylalanine) or DLPA
Irritable and shaky	Grounded or stable	Low blood sugar	Glutamine

We use this in conjunction with the symptoms questionnaire for each neurotransmitter and trial the respective amino acids one at a time.

I often see low GABA to be a driving reason for vaping, smoking cigarettes and drinking alcohol – they are all ways of self-medicating in order to calm down and reduce stress. And research supports this connection with “disturbances to GABA dynamics” “found to play a key role in … substance dependence and addiction.”

Louise mentions her daughter notices “physical withdrawal signs” of “rapid heart beat, pain inside” when trying to quit so it’s very possible there is a low GABA aspect to her addiction. I would consider a trial of GABA to start if she also has other low GABA symptoms.

She also shares that her daughter has “health anxiety” and freaks out when she starts to get withdrawal symptoms. If she resonates with being fearful and worried then it’s possible there is also a low serotonin aspect for her. Louise mentions that 5-HTP didn’t help but not how much they trialed or if they increased to try and find the ideal amount. If her daughter has other low serotonin symptoms I’d revisit this and also consider a trial of tryptophan as some individuals do better on one vs the other. I’d also use both as powder on the tongue in case that makes a difference.

And when I hear “hopeless” and “emotional” I would also be considering low endorphins and a trial of DPA (d-phenylalanine).

Why the amino acids are so powerful when it comes to vaping and other addictions

The amino acids play many roles in addressing a vaping addiction:

They address the root cause of the addiction i.e. the neurotransmitter imbalance/s
They help you to quit vaping with no willpower and without feeling deprived
They help to mitigate many of the adverse effects (like worse sleep issues and feeling more anxious)
They address the emotional aspect so mood and anxiety is improved
They prevent the need to find a replacement like sugar, coffee, Diet soda and alcohol and cigarettes (intake of any of these may increase when vaping is stopped, unless the neurotransmitter imbalances are addressed)

Many individuals with addiction issues have imbalances in all areas. We use a similar approach for vaping as we use for addictions to alcohol, cigarettes and sugar/carb/junk food i.e. we tackle one imbalance at a time so we know which amino acid is helping and how much is needed.

Dietary aspects are foundational and important too, as are really late nights and detox

I love that mom makes sure her daughter is well-nourished with real whole food – it’s foundational, as I explain in my book “The Antianxiety Food Solution.”

Louise mentions she gets a good breakfast. I’d be making sure she has good quality animal protein at breakfast in order to help with blood sugar stability as this helps with addictions too. And I’d want to make sure she takes healthy protein snacks to work too – like a boiled egg, beef jerky/biltong, a grass-fed beef stick etc.

With really late night / early morning finishes we always consider adrenal issues and address that as needed, after doing salivary testing.

And once Louise’s daughter has quit I would be focusing on detoxification of the toxins using sauna, red light, dry skin brushing and other detox approaches. And making a concerted effort to focus on improving antioxidants and other nutritional deficiencies, and assessing and working to improve her bone health.

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

As always, I use the symptoms questionnaire to figure out if low GABA or 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.

Wrapping up and your feedback

I appreciate Louise for asking this question so I could share on this blog and enlighten her and other parents whose teen and young adult children are struggling with vaping.

Does your teen or young adult child struggle with quitting vaping? And have the amino acids helped – if yes, which ones?

Have you personally had a similar issue?

And are you aware how harmful vaping is – for the lungs and even the bones?

Feel free to share and ask your questions below.

The correlation between terrible anxiety/panic attacks and collagen

July 25, 2025 By Trudy Scott 14 Comments

Bea shared her collagen experience and insights on one of the collagen blogs:

I discovered the correlation between terrible anxiety and collagen myself several years ago! Couldn’t find any data about it then so just assumed I was a weirdo. But then my 26 yr old daughter started having terrible panic attacks. And bam! She too had started a collagen supplement! So I realized at least 2 ladies have this trouble! Got me to think about how many women seek anti-aging help with collagen and then also end up on prescriptions to help calm terrible anxiety without seeing the connection. Practitioners don’t seem to know about this. But every vitamin shop I visit hears from me on the anxiety/collagen connection. Perhaps grassroots word of mouth will help others eventually.

And yesssss… for me, bone broth is equally horrible!! Even if it is simmered for only 30 mins.

Thank you for explaining, Trudy!! How fascinating to learn it’s the drop in serotonin! I’ve never tried Tryptophan… just a bit nervous. But I think it’s time. I sure need the bone broth for my waning gut health. And I’m weary of ruminating thoughts lately! Thank you immensely for shining a needed light on how these amino acids help! I only wish I could share lunch with you and pass along my grateful hug!

God bless you, Trudy!

I’m so glad Dea found this correlation for herself and her daughter! Collagen use is on the rise and there is little awareness about these effects on serotonin levels in susceptible individuals. Read on for many of the anti-aging benefits of collagen, more information about tryptophan depletion studies, another similar story, other possible causes, and other blog resources on this topic.

Collagen use as we age: for skin, joints and bone health

Her comment about an increase in collagen use for anti-aging is so true. This 2023 paper, Collagen supplementation in skin and orthopedic diseases: A review of the literature, discusses the many age-related benefits of collagen:

hydrolyzed collagen supplementation promotes skin changes, such as decreased wrinkle formation; increased skin elasticity; increased hydration; increased collagen content, density, and synthesis, which are factors closely associated with aging-related skin damage.

Regarding orthopedic changes, collagen supplementation increases bone strength, density, and mass; improves joint stiffness/mobility, and functionality; and reduces pain. These aspects are associated with bone loss due to aging and damage caused by strenuous physical activity.

This paper mentions these aspects about collagen, that it’s low in tryptophan and that it is not a complete protein i.e. it’s a low biological value protein:

Notably, collagen is a low-tryptophan protein, an essential amino acid for humans.
Collagen is a source of conditionally essential amino acids (glycine and proline), which are important in some physiological situations.
Collagen is a low biological value protein, since its amino acid composition is poor in essential amino acids. However, it has a positive intrinsic value because its amino acid composition is equivalent to that of human connective tissue.

This supports what we have learned from acute tryptophan depletion studies causing low serotonin.

Tryptophan-depletion studies to study the relationship between low serotonin and depression

Here is my first blog explaining acute tryptophan depletion studies (published in 2017) – Collagen and gelatin lower serotonin: does this increase your anxiety and depression?.

Tryptophan-depletion studies have been done for years, as a way to study the relationship between low serotonin and depression. Often a tryptophan-deficient amino acid mixture is used for this purpose. More recently, collagen and gelatin are being used.

Collagen and gelatin are an excellent source of these amino acids: proline, glycine, glutamine and arginine, but they do not contain the amino acid tryptophan.

This paper, Pharmacokinetics of acute tryptophan depletion using a gelatin-based protein in male and female Wistar rats summarizes what we find in a number of studies that use gelatin for the purpose of lowering serotonin levels, in order to study the relationship between serotonin and behavior:

The essential amino acid tryptophan is the precursor of the neurotransmitter serotonin. By depleting the body of tryptophan, brain tryptophan and serotonin levels are temporarily reduced. In this paper, several experiments are described in which dose and treatment effects of acute tryptophan depletion (ATD) using a gelatin-based protein-carbohydrate mixture were studied in male and female Wistar rats.

I encourage you to read the above blog to learn about who may be more susceptible to these effects.

I also share my personal experience with collagen consumption and can totally relate to Bea’s story and what clients and those in my community have shared.

Toni used collagen for 8 months – anxiety and panic attacks are off the charts

Toni experienced something similar:

I’ve been using Organic collagen for about 8 months now… love the hair and skin results. My tummy felt better at first but not currently. My anxiety and panic attacks are off the charts: panic attacks, heart racing, sweating, brain fog. I want to escape – like fight or flight. Definitely obsessing and fears. Memory difficulty. I have an upcoming GI appointment to check for Candida /SIBO… but I had no idea this could add to my anxiety. I’ll be looking forward to more information, Seriously.

And a few weeks after stopping the collagen she shared this:

I stopped using collagen. Since then, my anxiety and panic have decreased by less than half. Mild in comparison. I’m definitely taking a long break.

Instead of stopping collagen altogether, my advice is to figure out if low serotonin is the cause and address this with tryptophan or 5-HTP so collagen can be used for its many anti-aging and health benefits.

Is their anxiety due to reduced serotonin or histamine, glutamate or oxalate issues

Keep in mind tryptophan will help and allow collagen, gelatin and broth to be consumed without the increase in anxiety and panic attacks (and sleep issues) only if it is due to low serotonin.

Presumably both Dea and her daughter have other low serotonin symptoms – in addition to anxiety and panic attacks – such as sleep issues, worry, fears, afternoon/evening cravings etc (here is the list of symptoms). As you can see from Toni’s feedback (above), she does have many low serotonin symptoms.

A trial of tryptophan and symptom reduction (initially until the ideal dose is found) will confirm symptoms are related to low serotonin very quickly. This will also help Dea with her nervousness and ruminating thoughts, help her daughter ease the feelings of panic and help Toni too.

It’s also often helpful to also rule out histamine, glutamate and oxalate issues from collagen, gelatin and broth intake – as all of these factors can contribute to an increase in anxiousness too.

Additional blog posts on the topic of collagen

In case you are new to these potential issues, here are additional blog posts on the topic:

If you are new to this topic and are still skeptical about all this, do read the many comments and stories on these blogs. It’s a way more common issue than you’d think!

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

As always, I use the symptoms questionnaire to figure out if 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.

Wrapping up and your feedback

I appreciate Dea for sharing her story on the blog and for sharing this information at vitamin stores – we do need more awareness, hence this new blog on the topic to further help create awareness.

It’s very likely that this is one big contributing factor to the rise in anxiety and sleep issues in perimenopause and menopause. And this is probably made worse because so many practitioners are still not aware.

I thanked her for her kind words, and said I’ll take a virtual lunch and a virtual hug from her.

Have you experienced any adverse effects from collagen, gelatin or bone broth?

Have you been able to continue using them by adding tryptophan?

And why do you use collagen/how is it helping?

If you’re a practitioner are you aware of this issue for certain susceptible individuals?

Feel free to share and ask your questions below.

My kids and I used GABA to get through Hurricane Helene – I recommend it for everyone’s 72-hr kit now

July 15, 2025 By Trudy Scott 2 Comments

My kids and I used GABA to get through Hurricane Helene. Freeways broken in 3 directions, no comms, no gas, no power, etc. GABA noticeably kept us calmer even as the days went by. It helped us stay calm enough to think about our escape plan and jump on opportunities to find gas and water.

So grateful we learned about it [from you years ago] and had it on hand… I recommend it for everyone’s 72-hr [emergency preparedness] kit now.

Alecia shared her wonderful results with GABA on a Facebook post. I’m sorry they went through this but I am so happy GABA helped. I also wish everyone had GABA on hand for situations like this.

She now also uses a manual device for vagus nerve stimulation (VNS) and feels a combination of “GABA and VNS would have been incredible.” I’m a big fan of a B complex too and zinc and extra B6 if you have pyroluria because the added stress depletes these nutrients and makes things worse. And serotonin and endorphin support can often be helpful too. More on all this below and details about the GABA product she used and what dose helped her.

Which GABA product helped her and her family and how much did she use?

I asked Alecia to share how much GABA helped during and after the hurricane and which product worked for her? And if she had been using it before for day-to-day low GABA symptoms of feeling anxious, stressed, overwhelmed with physical tension and sleep issues.

We use the pharmaGABA by Natural Factors. I usually only need 100 – 200 mg in my regular life. During the hurricane I needed 300 mg pharmaGABA a couple of times a day. And more when waiting in a gas line. Such intense stress. GABA really took the edge off.

It’s always helpful to know your baseline dose i.e. what you use on a day-to-day basis. And to expect that dose to increase in times of the added stress in the midst of the hurricane and the immediate aftermath – as it did for Alecia. She needed a higher dose and used it more frequently.

You may often find you need to continue with the higher dose for a few weeks to months after the disaster, especially during the clean-up and rebuilding period.

One other factor to consider is the form of GABA. She used pharmaGABA with much success and many do very well on this form but I find more folks do better with GABA. GABA works best when used sublingually, capsule-opened, powder (all held on the tongue 1-2 mins) or cream, and a low starting dose is used, and increased to find the optimal dose.

Vagus nerve stimulation (VNS) as an added benefit

Alecia now also uses a manual device for vagus nerve stimulation (VNS). She had it during Hurricane Helene but had not yet used it:

A combo of GABA and VNS would have been incredible. I found out my mom was diagnosed with stage 4 cancer the next week and finally started using both GABA and VNS. Game changer combo.

She has the Hoolest veRelief Prime device and says this:

I love the Hoolest VNS. It helps with anxiety, sleep, digestion, and higher performance. I like level 4 but my kids prefer level 1.

I used it daily for about 4-6 months and then I started to heal deeply. Now I only need it once every week or two.

(I did hear that her mom’s treatments are working)

Vagus nerve stimulation, anxiety, GABA and the potential with VNS devices

This paper, Vagus nerve stimulation: a physical therapy with promising potential for central nervous system disorders, discusses how “vagus nerve stimulation influences the central nervous system through the GABA system” and the fact that “VNS has been shown to alleviate anxiety symptoms”, depression, obsessive-compulsive disorder (OCD), panic disorder, and post-traumatic stress disorder (PTSD). Much of the research has been done with implantable vagus nerve stimulation (iVNS) but the potential with non-invasive vagus nerve stimulation devices is really exciting.

What is so interesting is that “Vagus nerve stimulation influences the central nervous system through the GABA system” and it’s “speculated that part of VNS’s therapeutic effects …might involve the GABA system.”

VNS benefits are also seen via impacts on serotonin and dopamine, BDNF (brain-derived neurotrophic factor), by reducing inflammation and the secretion of inflammatory cytokines and promoting neuroprotection.

You can read more about vagus nerve support on this blog: Vagus nerve rehab with GABA, breathing, humming, gargling and key nutrients. I share my vagus nerve/throat issue and how manual vagus nerve support exercises and GABA helped me.

Using a good B complex and the pyroluria protocol too

I told Alecia that I’m a big fan of a good B complex and the pyroluria protocol too. I share more in this blog – Nutrition solutions for psychological stress after a natural disaster.

If this is all that can be managed it would be my first choice for everyone. In fact, if you live in an area prone to hurricanes, floods, fires etc. I’d recommend being on a B complex all the time.

My colleagues Bonnie Kaplin and Julia Rucklidge published this paper in 2015: A randomised trial of nutrient supplements to minimise psychological stress after a natural disaster. Those consuming a B-Complex and a broad-spectrum mineral/vitamin formula showed significantly greater improvement in stress and anxiety than study participants consuming a vitamin D supplement.

It is well known that pyroluria symptoms are made worse in times of heightened stress. If you are on protocol for pyroluria, additional zinc and vitamin B6/P5P is likely going to be needed short-term too.

In addition to GABA I also mention serotonin and endorphin support:

Serotonin support with tryptophan or 5-HTP, especially if you’re feeling sad, worried, imagining the worst, feeling fearful and having problems sleeping. More on tryptophan products.
Endorphin support with Lidtke DPA if you’re feeling especially emotional and weepy and grieving the loss of your home and community. More on endorphins here.

And I also include some resources for disaster preparedness and things to consider after the fangers have passed (like mold toxicity).

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

As always, I use the symptoms questionnaire to figure out if low GABA or 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.

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.

Wrapping up and your feedback

I appreciate Alecia for sharing her story and giving me permission to share on the blog.

Do you have GABA on hand all the time and include them in your 72-hr emergency preparedness kit?

Have you found vagus nerve stimulation (VNS) to be helpful – either manual exercises (which ones help you) or using a device (which one helps you)?

What about B vitamins and the pyroluria protocol – do they help too?

If you’re a practitioner do you recommend GABA, VNS, B vitamins and the pyroluria protocol?

Feel free to share and ask your questions below.

Lidtke tryptophan 100mg chewable is back! It’s great for anxious, worried, raging kids and pixie dust adults who have trouble sleeping too

June 6, 2025 By Trudy Scott 28 Comments

The Lidtke tryptophan 100mg chewable product has been out of stock for close to a year and it’s now back, hence this blog post. This product has been a firm favorite of mine for many years and I’ve used it successfully with children and adults with signs of low serotonin. If you’re new to tryptophan, it’s an amino acid that is a precursor or raw material for the production of your feel-good neurotransmitter called serotonin.

I’ve used this product in the past with children who are anxious, worried, raging, having problems sleeping and craving sugar and carbs. I’ve also used it with “pixie dust” clients who do well with a small dose and prefer a chewable form of tryptophan. And I often recommend clients use it to do the initial one-off trial to figure out if low serotonin is the issue (and before moving on to a typical starting dose of 500mg tryptophan twice a day).

In this blog you’ll see the label of the newly formulated tryptophan 100mg chewable and some of the many advantages of tryptophan as a low-dose chewable. You’ll also see some feedback on the previous formulation, a success story with a young girl and my personal experience too.

The newly formulated Lidtke L-Tryptophan Chewable

Here is the new label for the Lidtke L-Tryptophan 100mg Chewable. This product has been a firm favorite of mine for many years and the formulation has shifted over the years.

This formulation still contains 100mg tryptophan and a different sweetener – luo han guo, also known as monk fruit. It’s a zero-calorie natural sweetener that does not affect blood sugar. Monk fruit does belong to the gourd family and would need to be avoided if there are allergies to these foods (such as cucumbers, melons, zucchini etc). Also, some individuals do not like the aftertaste of monk fruit.

It does contain flavors – maple and vanillin – which may be problematic for sensitive individuals. Acacia gum (or gum arabic) is low FODMAP and typically well tolerated, but may cause bloating for some.

The chewable has not been available for about a year so this is very welcome news.

Chewable tryptophan for a young girl with anxiety, rage, sleep issues and strong cravings

As I mentioned I’ve been using chewable tryptophan with success for many years. I often share the success story of a young girl with anxiety, rage, sleep issues and strong cravings for candies in documentaries and summit interviews and – and how addressing low serotonin with a chewable tryptophan quickly helped:

So sitting in my office with this young girl and her mom, we started to talk about the sweets and the candies and the need to give up the candies. She was fuming with me. She was sitting in a swivel chair. She turned her back on me and didn’t want to talk about having to give up candy at all.

I said, “Look, let’s not even talk about that, but would you take this chewable tryptophan here? And we’ll talk about it in a second.” I gave her 100 mg of the chewable tryptophan and continued discussing things with her mom. She had no idea what it was going to do or how it would make her feel.

Within five minutes she turned her chair back, looked at me and she said, smilingly, “Yes, let’s do it. I can give up the candy.” She was smiling and she was happy.

So long story short, with this young girl, we started her on [chewable] tryptophan [and it turned things around quickly].

You can read her entire story here on the blog – Rage, anxiety, cravings & insomnia in 11-year old girl with RAD/reactive attachment disorder: chewable tryptophan turns things around (she also went gluten-free and addressed low iron levels and the change was transformative.)

Some of the many advantages of tryptophan as a low-dose chewable

Here are some of the many advantages of tryptophan as a low-dose chewable:

The low dose is suitable for sensitive adults and pixie-dust folks (i.e. a small amount goes a long way)
It can be easily broken apart if an even lower dose works well
It’s pleasant tasting
It’s easy to have available to use on the go when traveling or out and about
The dose dose and taste is suitable for children and kids who are picky eaters
The dose dose and taste is suitable for older adults with dementia or Alzheimer’s, adults with special needs or Parkinson’s
One less capsule to swallow and more pleasant that tryptophan powder on the tongue
A good tool for doing the initial one-off trial to confirm low serotonin symptoms before embarking on titrating up to a higher dose of tryptophan

My personal experience with chewable tryptophan

Personally, I have used tryptophan over the years with much success. It’s helped me with sleep issues, the worry type of ruminating anxiety and PMS symptoms.

I also used it when I was grieving after my mom passed away and found it particularly helpful a few months after her passing when I’d start to feel more sad after dinner and go searching for sugar as a pick-up. It worked well because serotonin takes a dip later afternoon/evening.

Most of the time I’ve used 500mg and above – capsules opened and powder.

However I like to try what I recommend (if possible) so I have tried a few bottles of the previous formulation of the chewable tryptophan. It worked well and the taste and texture was pleasant. But because I do better on a higher dose I was needing to chew too many!

I have yet to try this new formulation myself but will report back as soon as I have had a chance to do so – on the taste, the texture and the effectiveness.

Positive feedback on the previous chewable tryptophan product

Until I get feedback on the new formulation, here is some general feedback from individuals in the community.

Jean is a practitioner who uses it herself and with patients:

It works within 15 minutes to stop looping thoughts/anxiety and the dose isn’t too sedating during the day. I never find it too sweet and wouldn’t let the taste keep me from such rapid relief.

I like the 100 mg chewable because it only has tryptophan and I didn’t want the other ingredients in the [Lidtke tryptophan] Complete for my needs.

I’ve had patients do well with tryptophan with the 100 mg chewable and others with the higher dose capsule.

Kelly likes the low 100mg dose compared to the 500mg capsules:

I purchased the adult pills and they were too strong. I was groggy in the morning.

Erin is also a practitioner and mom:

I have used this [the chewable tryptophan 100mg] with my 8 year old when he’s in a rage or showing signs of excessive worry and it works great! So glad it’s coming back. I recommend it to clients all the time.

Ali is also happy the chewable is coming back:

Great news!! I love the chewable and I prefer 100 mg early evening for anxiety and sleep. Sometimes 200mg but not often.

I appreciate them all sharing and hope to get updates from them when they try the new formulation.

Negative feedback on the new tryptophan chewable formulation

Update: June 14, 2025

Unfortunately, since publishing this blog and sharing on Facebook, the negative feedback has been coming in fast and furiously. Here is some of what people are sharing:

Melissa: “Love this company. I like that it’s chewable but it’s a large tablet and flavor is awful. Tastes like when you put maple syrup on a burnt pancake to try and cover up the burnt . I will finish the bottle though. I wish there were other chewable options, like GABA calm’s orange flavor.“
PS: “Revolting. Aftertaste like artificial sweetener. Smoother texture, last longer. Made me suspicious they were fake and I spat it out.“
Tamar: “I recently bought a few bottles of the maple sugar chewable. Taste is quite sweet and artificial, IMO. I don’t like chewing them because the product gets jammed in my teeth and stays there. I’ve been letting them dissolve, which takes a very long time.”

And these are comments from this blog:

Erin: “I was so excited to get this back, especially for my 8 year old son who has symptoms of ADHD rage. However, the new flavor is bitter and gets stuck in our teeth and now I can’t get him to take it!”
Nikki: “I got these about two weeks ago…. Truthfully I think it tastes horrible but that’s just me. Just unpleasant. Kind of sour and stale. They smell amazing but you get one in your mouth and it’s so hard to chew and swallow.”
Tara: “The new formulation of the Lidtke does taste horrible. Initially I thought oh this smells lovely, tried to have my daughter take it and she said ick mom. So I said ok let me try it and ICK was right, the sweetener was gross and it did have a stale taste. So unfortunate as I had hope for this to help my daughter dealing with a lot of fears, worry, upset stomach and negative self talk at 9 yo and rage and sugar cravings.”

As of now I am NOT recommending this product.

The good news is that Nikki emailed Lidtke and shared this: “I just got an email back from Lidtke. Her name was Jessica and she stated: So, I’ve talked to the owner and let him know how many people are complaining about this new formula. He told me he was not aware it was changed and we are having a new batch made using the old formula that everyone loves. Going to take a month maybe a little more but we are definitely having this fixed.”

I appreciate her for emailing them and sharing this update. I’ve been communicating with someone else at the company and was told they have no plans to make any changes so if this is true it’s really good news!

Stay tuned for further updates and please share your own feedback in the comments below.

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

As always, I use the symptoms questionnaire to figure out if 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.

We are also offering the Serotonin Quickstart Program, a paid online/virtual group program where you get my guidance and community support during 5 LIVE Q&A calls.

Wrapping up and your feedback

Now I’d love to hear from you – have you used the chewable tryptophan with success in the past? And how has it helped you or a loved one?

(once you try the new formulation I’d love to hear your feedback on taste, texture and effectiveness)

If you’d like to get on the notification list for the next Serotonin Quickstart Program (a paid online/virtual group program where you get my guidance and community support during 5 LIVE Q&A calls), please do so here.

If you’re a practitioner have you used chewable tryptophan with your clients/patients?

Feel free to share and ask your questions below.