DPA/DLPA

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 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), 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.

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’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.

Lidtke Endorphigen vs Doctor’s Best D-phenylalanine: the taste difference and endorphin boosting benefits for mood and cravings

April 19, 2024 By Trudy Scott 26 Comments

The amino acid d-phenylalanine (DPA) is used to boost endorphins in order to improve mood and reduce cravings. Lidtke Endorphigen has long been a favorite recommendation of mine for this purpose. Doctor’s Best D-phenylalanine is an equally effective and quality product, and both are ideally used opened onto the tongue. When DPA is used this way you get quick results. Many of my clients (and myself included) describe the opened DPA as a dark-chocolate bitter like taste that is not unpleasant. However, about half my clients don’t particularly like the taste of DPA and one woman in my community, Ali, was ready to give up on the Lidtke Endorphigen product because of the taste.

In today’s blog you can read her feedback comparing both products and what worked for her, feedback from a few other women about both products and my personal feedback – with all of us sharing results and taste. And I share some takeaway lessons from these DPA experiences.

She shared this about her strong aversion to the Endorphigen:

Oh goodness. If I open the Endorphigen on my tongue, it’s just awful. I might be able to get 1/4 of it but that’s it. And the taste stays there for at least an hour. No sense of chocolate in there for me. Isn’t that interesting that you and others like the taste. I consider myself pretty open to whatever needs to be done but wow, this is almost no way.

I shared how I love the taste of DPA and that it’s 50:50 in terms of loving it (chocolate-like taste) vs not loving it but also that using the amino acids opened is more effective for many folks. But it’s no good if it tastes bad. I also shared that Lidtke Endorphigen contains a small amount of vitamin B2 and vitamin B6 and maybe that was making it intolerable for her.

Doctor’s Best D-phenylalanine contains DPA only and when I let her know all this, Ali decided to give it a try. This is her feedback on the day she got it:

I received my Doctor’s Best D-phenylalanine and put it on my tongue. It’s 10 bazillion times better than the Endorphigen which was so bad for me that I couldn’t get past it. And I think I can get past a lot. I’m grateful. So now I have to see how it works for me.

Ali’s dark clouds have lifted and her sweet tooth has disappeared

The next day Ali posted this, amazed this product made such a difference in just one day:

I used the Doctor’s Best D-phenylalanine only once and that was today at about 8 am. I felt just generally better, no dark clouds. But also, it’s now 6:30pm when I get my sweet tooth. Nothing. Nothing at all. So no sweet tooth and an improved general feeling. I realize it’s only one day but I feel like it’s made a difference.

And a week later she posted this, confirming that Doctor’s Best D-phenylalanine “is a game changer”:

So much different from Endorphigen. I find I need only 1/2 capsule on my tongue. There’s not much of a taste to me. I then don’t want sweets like I have been wanting in the morning and evening. But I also have a better general feeling. Hard to describe but I just feel more grounded. I can’t tell if it physically reduces the sweet craving or if it’s a mental change. Or both. In any case, nice solid change. Thank you for being there.

Alicia also likes Doctor’s Best D-phenylalanine opened on to her tongue

She shared this about how this DPA product makes her feel:

It gives me a great feeling. Just getting me through some stressful moments. I recommend it! Opening onto the tongue is more effective than swallowing but swallowing adds a bit of relaxation too.

I don’t mind the taste at all – it reminds me of sugar or cocoa powder (my husband was less keen when I got him to try). And it works quickly, yes – I think within 10 minutes but probably less. And I feel more perky for hours. I think I feel more alert but calm emotionally.

I always have a bottle of DPA on hand and I shared my success with Doctor’s Best D-phenylalanine for a recent tooth issue/pain and emotional pain over the holidays on this blog post.

And yet many folks do well with Lidtke Endorphigen and like the taste

I’d like to be clear that this is not intended to be a negative post about Lidtke Endorphigen at all. I still recommend both products and I’ve personally used and like the taste of both. The purpose is to illustrate that we need to find what works for our unique needs and tastes.

As you can see, many folks do really well with the Lidtke product.

Lynn shared this: “I love using the DPA! I use the Lidke brand. Very helpful in improving mood and anxiety. Open on my tongue. I like the taste!”

Joan shared this: “It’s interesting to read your recommendation to open the capsule … I had just started doing that! (Already using powdered forms of other aminos) Anyone looking thru my trash might wonder what I’m up to. This method really works for me.” (she’s using the Lidtke brand).

The addition of vitamin B2 and vitamin B6 to the Lidtke DPA clearly makes no difference in these instances.

The takeaways from this post

DPA is effective for boosting mood and reducing cravings
DPA works more effectively when opened on to the tongue and you’ll see results more quickly
Don’t push through if a product tastes unpleasant
Don’t give up if one brand doesn’t work for you
What works for you may not work for someone else
We all have different taste perceptions – find what works for your unique needs and tastes
Product formulations change so keep track of exact ingredients on your log and check ingredients when you re-purchase a product

Both DPA products and where to find them

Doctor’s Best D-phenylalanine is available via iherb (use this link to save 5%). Lidtke Endorphigen is available from the company site and from my online store (Fullscript – only available to US customers – use this link to set up an account).

Update September 27, 2024

It appears there are issues with the supply of Doctor’s Best D-phenylalanine. As of now it’s no longer available on their website and nor is it available via iherb.

I emailed Doctor’s Best and received a very generic response and emailed again to try and find out if it’s a shortage or has been discontinued.

They replied to my 2nd email with this:

We appreciate your interest in the products that we offer. Unfortunately, our D-phenylalanine is temporarily out of stock and at this time, we do not have a specific restock date available. We apologize for the inconvenience.

We recommend checking back on our website periodically for updates on product availability. As soon as it is restocked, it will be listed on our website, and you’ll be able to place an order.

The problem is far from clear. Someone in the community reached out and shared this: “When I spoke to a DB representative on the phone, they told me the product was discontinued due to ‘supply chain issues,’ that they had not been producing it for some time, and that Lidtke was the only place they could redirect me. Sounds like they don’t even know in-house what the true status is.”

Let’s hope this is just a shortage. But either way, right now Lidtke Endorphigen is the only other company I know that offers DPA and because of the taste issue some individuals have with the Lidtke product, swallowing a capsule is going to be the best option. I have also reached out to Lidtke sharing the taste issue and this blog post, and asked if they would be willing to offer a DPA only product. I’ll keep you posted on the outcome (and thanks if you reached out to let me know your findings).

Update May 30, 2025

Unfortunately, Doctor’s Best D-phenylalanine has been discontinued. The good news is that Lidtke appreciated the fact that I shared your taste issues and feedback, and my request for a powder-only product of d-phenyalanine/DPA has come to fruition.

You can read more about this new DPA product on this blog post.

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

As a reminder, low endorphins can cause low mood, weepiness, emotional pain, physical pain and emotional eating or cravings. As always, I use the symptoms questionnaire to figure out if low endorphins 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), 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.

Wrapping up and your feedback

I do always appreciate feedback like this so keep it coming so more folks can get results.

Now I’d love to hear from you – how has DPA helped your mood and cravings (and pain too?)

Which product has worked well for you?

Do you find DPA is more effective if swallowed or as a capsule opened? And how do you describe the taste?

If you’re a practitioner do you use DPA with your clients/patients and have you had this feedback?

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.

DLPA vs DPA for pain, food cravings, depression, grief, lack of joy; and impacts of DLPA on sleep, and feeling more stressed/anxious

April 5, 2024 By Trudy Scott Leave a Comment

A very common question I get is from folks asking about the difference between the amino acids DPA (d-phenylalanine) and DLPA (dl-phenylalanine) for endorphin support and endorphin/dopamine support. I dedicate an entire blog to this question explaining the differences and which one I use for weepiness, heart-ache, pain and energy. I also discuss where tyrosine (for dopamine support) fits in. If you missed that or need a recap you can read about this on the blog.

The blog post generated some great questions that I’m sharing today, with my feedback, in case you have similar questions. I discuss a question about DLPA vs DPA for pain and impacts on sleep; a question about DLPA (used by mistake) raising already high dopamine levels and why DPA isn’t working any more for food cravings; a question about using DPA with GABA; and a question about DPA for depression and lack of joy caused by grief.

Here is the question from Gloria who shared this feedback about her use of DLPA (as part of a pain relief product) but says she can’t use it past noon. She also wants to know more about DPA for pain relief:

My experience with DLPA is as part of a supplement called Curamin for pain relief from arthritis that also has curcumin and boswellia. It works quite well in the AM but I can’t tolerate it past noon or it negatively affects my sleep.

Interesting to learn it is similar to tyrosine which I have had sleep problems with in the past.

Does DPA work as well for pain? Is it best to take amino acids on an empty stomach for best absorption? Does that mean an hour before a meal or two hours after? Thank you for your blogs and book!

It’s great that this combination product offers pain relief and it’s good that she has made the connection to poor sleep when it’s used after noon. This is a popular product that I would like to see include the possible impacts on sleep and the other precautions for DLPA . It is a proprietary formulation so you don’t actually know how much DLPA you’re getting. I really don’t like not knowing.

One other concern is that curcumin is high-oxalate and for some this can make pain worse. Otherwise, curcumin and boswellia are excellent for pain relief and reducing inflammation.

DPA is more effective for pain than DLPA because it offers a bigger endorphin boost. If oxalates are not an issue, one option could be to continue with the Curamin before noon and if needed, add standalone DPA in the afternoon and evening, for added pain relief.

Amino acids are more effective on an empty stomach and even more effective when opened on to the tongue. I share more about opening DPA onto the tongue in this blog.

DLPA (used by mistake) raised already high dopamine levels and why isn’t DPA working any more for food cravings?

Rhonda shared how she found out the difference between DPA and DLPA the hard way and wants to go back to DPA:

I certainly found out the difference the hard way. I had used Lidtke Endorphigen for a few years and I think it helped a bit with food cravings. As I am in Australia, I depend on my sister’s visits from US for my supply. When I ran out last year, I bought DLPA by mistake.

After 1 week I was unable to cope with life, totally stressed out about everything, wanting to cry or scream or run away. Zero tolerance towards anyone. After 10 days I realized my mistake and I went back to normal in 24 hrs.

I believe DLPA resulted in very high dopamine as I already have a very slow COMT gene activity for breaking down dopamine.

I now take Endorphigen again but not seeing much effect on sugar cravings this time.

That is quite the reaction she experienced but I’m glad she figured it out so quickly. It’s not uncommon for some folks to react to DLPA like this, feeling more stressed and even anxious. High dopamine, and norepinephrine and epinephrine (so a huge adrenalin rush), related to slow COMT activity could well be the cause.

When Endorphigen (or any of the amino acids) work well initially we continue with trials of higher doses to find the ideal dose. It may also be that a reset is needed after the shift in dopamine.

Rhonda did say she thinks Endorphigen “helped a bit with food cravings.” When it only helps a bit it may be that the dose isn’t high enough or we may need to consider other neurotransmitter imbalances. They can all cause cravings for slightly different reasons: GABA/stress, serotonin/worry or low mood, glutamine/low blood sugar. More on that and the respective amino acids here.

Can GABA be used with DPA?

Ray asks: “Can I use GABA 25mg and also take DPA? Would either/or offset the other?”

My feedback: If someone has low GABA symptoms and GABA helps and they also have low endorphin symptoms and DPA helps then they are absolutely fine to use together and even at the same time. However, I have my clients trial one at a time in order to find the ideal dose and so you know how each one is working

What can I use for my depression and lack of joy, caused by grief?

Vee says she needs something “to get through my grief depression”:

Completely flat, no joy. I always had a calm flat disposition, but now it’s a complete zero. I need my brain to produce some oxytocin so I can like myself, my family and remember all I should be grateful for. I sleep good. I don’t take any meds, and I don’t abuse alcohol. Does tyrosine affect the brain in the way of producing oxytocin?

My feedback: I use DPA/Lidtke Endorphigen for this very purpose. It’s wonderful for grief, depression, lack of joy and the weepiness we see with low endorphins. It also helps with emotional eating that can show up as we try to self-medicate with treats in order to try and feel better.

When the depression also includes being flat, blah and curl-up in bed we use DLPA instead of DPA, or a combination of DPLA/DPA or tyrosine/DPA. Trials of each, one by one, helps you figure out what works best for your unique needs.

And for some folks GABA is helpful as shared by this woman who found GABA allowed her to sit with a feeling of peace and calm most of the time after her mum passed away.

Research does shows a link between dopamine and oxytocin, with oxytocin “emerging as one particular neural substrate that may be influenced by the altered dopamine levels.” Also, for oxytocin support I’d focus on hugs, massage, touch, laughter, making love, yoga, and petting a dog or cat.

DPA and DLPA product options

Products I recommend include Lidtke EndorphiGen (which is DPA) and Pure Encapsulations DL-Phenylalanine (DLPA). 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 D, L-Phenylalanine (or DLPA) (use this link to save 5%).

Additional resources when you are new to using DPA and DLPA, and other amino acids as supplements

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

Wrapping up and your feedback

I do always appreciate questions and feedback like this so keep your questions coming. I do hope my sharing these ones have been helpful to you.

How has DPA or DLPA helped your pain, depression, lack of joy, weepiness, and grief? And has DLPA affected your sleep or made you feel more anxious or stressed?

If yes, which products have helped and do you find swallowed or capsule opened is more effective?

If you’re a practitioner do you use DPA and/or DLPA with 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.

D-phenylalanine (DPA) for easing both physical pain (tooth pain) and emotional pain over the holidays

January 5, 2024 By Trudy Scott 33 Comments

Today I share how the amino acid D-phenylalanine (DPA), used as a supplement multiple times a day, and opened on to my tongue, eased both the physical tooth pain I experienced for 14 days and the emotional pain I was feeling over the holidays.

In this blog I share more about DPA and endorphins when it comes to pain – both physical and emotional. I also share two DPA products I recommend, product label confusion and more about how DPA differs from DLPA (DL-phenylalanine). I am often asked this question and even long time users of DLPA are sometimes surprised to learn how different DPA is. As always, I like to share some research and other related blogs on the topic. Here is my recent and very positive personal experience with DPA, a firm favorite of mine:

I’m just back from the dentist – my crown was re-cemented and I’m a happy camper now. It popped off just before Christmas and I had to wait until now! There was a tiny cavity beneath the crown which is why I was having daily pain.

Thank goodness I always have DPA (the amino acid d-phenylananine) on hand. I gravitate to it for pain relief – sports injuries like muscle sprains, the rare headache and this time for tooth/jaw pain.

I opened a DPA onto my tongue as soon as I could feel the dull ache start and the pain relief lasted a few hours. It works by boosting endorphins to provide pain relief – kind of like acupuncture. I call it “powdered acupuncture”.

Some days I used 3-4 and one day I needed 6. Taking one before bed was wonderful.

I also got bonus benefits for emotional well-being over the holidays. It’s the first Christmas without my darling mom and I really needed the endorphin boost to help with the emotional pain.

The DPA product I used was Doctor’s best (details below) and I opened up the 500 mg capsule onto my tongue each time I needed pain relief.

The number of capsules I needed seemed to vary by how much chewing I was doing (for example, I had more pain after a steak meal vs smoked salmon) and what I was eating or drinking (for example, I had more pain after drinking something cold). I simply used a DPA capsule when the dull pain started, making sure it was away from protein (not always but most of the time).

UPDATE: Sept 13, 2024
DPA has come to my rescue yet again and this time the tooth pain has been very severe. I initially suspected it was the crown again but when I got into the dentist an xray confirmed an abscess at the tip of one of the roots.

It’s a first for me and I’ve never experienced a toothache like this. The pain ramps up from zero to 10 (with 10 being most severe) in a matter of seconds. The only thing that helps right now is DPA. I’m opening a capsule every few hours and have even had to use it every 30 mins when it’s really severe like after drinking or eating something. It brings to pain down to a 3 in a matter of minutes.

I’ve figured out that using a straw to drink liquids helps a ton. I’m also using a soft ice-pack a few times a day too. Strangely it’s worse just before bed, after I take my bedtime supplements. I need the DPA and ice-pack but fortunately I have no pain through the night. Thank goodness for that!

I’m also using a herbal antibiotic and herbal mouth swish from my naturopath while I get a second opinion, learn about my options, and decide next steps.

All this has solidified DPA as my go-to supplement for pain relief.

One of the DPA products I recommend: Doctor’s Best D-Phenylalanine

There are not many d-phenylalanine/DPA products available but of those I have two that I recommend: Doctor’s Best D-Phenylalanine and Lidtke Endorphigen. Both contain 500 mg DPA but the labels can be confusing at first – at least until you’re familiar with them.

Also, this amino acid, DPA, is not to be confused with docosapentaenoic acid (also abbreviated as DPA), an omega-3 fatty acid similar to eicosapentaenoic acid (EPA).

Here is the Doctor’s Best D-Phenylalanine description:

Doctor’s Best D-phenylalanine is a non-protein amino acid that acts as an inhibiting agent to enzymes that degrade enkephalins, naturally occurring peptides in the body that metabolize endorphins. Endorphins are neurotransmitters that play a key role in the function of the nervous system and are associated with feelings of pleasure. By limiting production of enzymes that break down endorphins, the supplement can help support a healthy mood and normal functioning of the nervous system.

Helps support healthy mood
Helps support endorphin metabolism
Help support neurotransmitter function

This is the actual product that I used over the past 2 weeks and have used it on and off as needed for a few years. It was one of the nutrients that helped when I sprained my ankle when visiting my brother in Las Vegas. More here

As you can see there is no mention of pain on the label or product description. I share more on the pain/endorphin connection below.

You can purchase this online from their website or from iherb. If you use my iherb link you’ll save 5%. This is a good option if you’re not in the USA and already use iherb for one-stop shopping of quality products.

The other DPA product I recommend: Lidtke Endorphigen

The other product I recommend is Lidtke Endorphigen which also contains 500 mg DPA and a small amount of vitamin B6 and riboflavin (vitamin B2). As you can see, this product does mention pain but not the emotional support/mood benefits on the front label.

Here is the Lidtke Endorphigen description

Ease Minor Pain & Feel Good with Healthy Endorphin Level Maintenance

Endorphins are nature’s way to relieve common minor pain and promote a cheerful mood. Research shows that endorphins are released in response to pain and stress, bringing relief. The second wind and runner’s high during and after a vigorous run are results of endorphins. Acting as an analgesic and sedative, endorphins diminish our perception of pain…. But there is more.

Recovery centers report that endorphins promote recovery from a wide variety of unhealthy cravings.

Low endorphin symptoms and typical dosing of DPA

I use the symptoms questionnaire to help clients identify if they have low endorphin symptoms (you can see that here).

Typical dosing is 500 mg to 1000 mg DPA 3-4 x day between meals/away from protein. I do find having clients open the capsule onto their tongue to be more effective for quick pain relief – with results as quickly as 5-10 minutes.

DPA vs DLPA: they are quite different but have some overlaps

I am often asked if DPA and DLPA are the same – they are quite different but have some overlaps as outlined in this blog post on the topic: What is the difference between DPA and DLPA (amino acids) and which one do I use for weepiness, heart-ache, pain and energy?

The precautions are also not the same so I always review contraindications with all my clients and encourage you to do the same.

DPA for MS pain, weepiness, emotional pain and more

Here are a few blog posts illustrating the use of DPA in multiple sclerosis, weepiness, physical pain, emotional pain and resilience, cravings/emotional eating and even helping to wean off prescription pain medication:

Multiple sclerosis: low endorphin research and the amino acid DPA (d-phenylalanine) for pain, depression, comfort and trauma support “The endogenous opioid system is …well known to play a role in the development of chronic pain and negative affect [i.e. depression], both of which are common comorbidities in MS.”
DPA for weepiness, pain and comfort and reward eating
The individual amino acids glutamine, GABA, tryptophan (or 5-HTP), DPA and tyrosine are powerful for eliminating sugar cravings, often within 5 minutes
When using the amino acid DPA (d-phenylalanine) I have more resilience and more buffer in the caregiving work I do, and just the oops’s of life As I mentioned above, using DPA over these holidays also gave me more resilience and the endorphin boost I needed help with the emotional pain of losing my mom.
Wean off prescription pain medication, improve sleep and reduce emotional eating with DPA (an endorphin-boosting amino acid)

Be sure to use the search feature on the blog to find additional applications of DPA.

DPA research on pain and depression

The use of DPA is not new as you can read in this paper from 1982 – D-phenylalanine and other enkephalinase inhibitors as pharmacological agents: implications for some important therapeutic application

A number of compounds have been shown to inhibit the degradation of enkephalins. As expected, these compounds produce naloxone reversible analgesia and potentiate the analgesia produced by enkephalins and by acupuncture.

One of these, D-phenylalanine, is also anti-inflammatory.

D-phenylalanine has proven to be beneficial in many human patients with chronic, intractable pain. It is proposed the enkephalinase inhibitors may be effective in a number of human “endorphin deficiency diseases” such as depression, schizophrenia, convulsive disorders and arthritis.

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

We use the symptoms questionnaire to figure out if low endorphins 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, sugar cravings, anxiety and mood issues.

Also mentioned above is Doctor’s Best D-Phenylalanine which can be purchased on iherb.

Have you had success using DPA for toothache, dental abscess or your other pain issues – what kind of pain has it helped and how much has helped you?

Has DPA also helped with emotional pain and weepiness? And cravings/emotional eating?

If you’re a practitioner do you have success using DPA with your clients/patients?

Feel free to share and ask your questions below.

Multiple sclerosis: low endorphin research and the amino acid DPA (d-phenylalanine) for pain, depression, comfort and trauma support

April 28, 2023 By Trudy Scott 8 Comments

The research on the role of low endorphins in multiple sclerosis (MS) is exciting because it creates more awareness about a powerful way to offer pain and mood support if you have been diagnosed with this condition. Typically, I ignore the diagnosis when assessing for low levels of neurotransmitters (via a symptoms questionnaire) and have clients do a trial of the amino acid DPA (d-phenylalanine) if they have physical pain symptoms, experience emotional pain symptoms with excessive weepiness/crying and seek comfort via treats/rewarding foods or the numbing effects of alcohol. However, we now know low endorphins play a role in MS (via the endogenous opioid system). By addressing low levels with DPA, you can find some relief of the above pain/depression symptoms and a need for comfort and numbing. DPA may also offer some trauma support if past trauma is a contributing factor (more on all of this below).

Low endorphins play a role in multiple sclerosis: the research

This 2021 paper, Multiple Sclerosis and the Endogenous Opioid System describes MS and the fact that current therapies have limited efficacy: “Multiple sclerosis (MS) is an autoimmune disease characterized by chronic inflammation, neuronal degeneration and demyelinating lesions within the central nervous system. The mechanisms that underlie the pathogenesis and progression of MS are not fully known and current therapies have limited efficacy.”

What is exciting is the identification of the role of the endogenous opioid system and specific opioid peptides in MS:

Preclinical investigations using the murine experimental autoimmune encephalomyelitis (EAE) model of MS, as well as clinical observations in patients with MS, provide converging lines of evidence implicating the endogenous opioid system in the pathogenesis of this disease.

In recent years, it has become increasingly clear that endogenous opioid peptides, binding μ- (MOR), κ- (KOR) and δ-opioid receptors (DOR), function as immunomodulatory molecules within both the immune and nervous systems.

The endogenous opioid system is also well known to play a role in the development of chronic pain and negative affect [i.e. depression], both of which are common comorbidities in MS. As such, dysregulation of the opioid system may be a mechanism that contributes to the pathogenesis of MS and associated symptoms.

Endogenous means internal i.e natural compounds produced by the body and involved in pain relief and mood improvement. This article, Opioid Peptides, describes peptides as compounds that “produce the same effects as the chemicals known as classic alkaloid opiates, which include morphine and heroin.”

It also mentions three major categories of opioid receptors – mu, delta, and kappa – referred to as MOR, DOR and KOR above.

D-phenylalanine for human “endorphin deficiency diseases”

Unfortunately neither of these papers mentions the amino acid DPA (d-phenylalanine) and the fact that it supports endorphin production (by inhibiting the breakdown of endorphins), reducing pain and improving mood – quickly (as in 5-10 minutes).

The use of DPA is not new information as you can read in this paper from 1982 – D-phenylalanine and other enkephalinase inhibitors as pharmacological agents: implications for some important therapeutic application

A number of compounds have been shown to inhibit the degradation of enkephalins. As expected, these compounds produce naloxone reversible analgesia and potentiate the analgesia produced by enkephalins and by acupuncture.

One of these, D-phenylalanine, is also anti-inflammatory.

D-phenylalanine has proven to be beneficial in many human patients with chronic, intractable pain. It is proposed the enkephalinase inhibitors may be effective in a number of human “endorphin deficiency diseases” such as depression, schizophrenia, convulsive disorders and arthritis.

Such compounds may alleviate other conditions associated with decreased endorphin levels such as opiate withdrawal symptoms.

Prevalence of anxiety/depression and alcohol abuse in MS

As I shared in the recent post addressing low GABA symptoms (anxiety, muscle stiffness, swallowing/voice issues and pain) in multiple sclerosis, anxiety and depression is common in this condition. Alcohol abuse is also high. I shared this paper, The incidence and prevalence of psychiatric disorders in multiple sclerosis: A systematic Review, with the following results:

Among population-based studies, the prevalence of anxiety was 21.9% (and up to 35.0% in some papers), 23.7% for depression …and 14.8% for alcohol abuse.

The above Opioid Peptides paper highlights that the endogenous opioid system may be related to excessive alcohol-drinking behavior. In the work I do with amino acids, I see alcohol used as a way to numb out.

All this supports the fact that the amino acid DPA may help ease symptoms of depression and weepiness seen in MS, and self-medicating with alcohol.

The goal is to use these amino acids instead of needing to use benzodiazepines (covered in the above GABA blog), antidepressants and pain medications.

DPA may help trauma in MS, and the freeze response

This paper, Childhood Trauma in Multiple Sclerosis: A Case-Control Study, suggests an association between childhood trauma and early-life stress and MS:

Although childhood trauma was not associated with the degree of current MS-related disability, patients with MS with histories of physical and/or sexual abuse had significantly higher relapse rates than patients without early-life stress.

DPA may also offer some trauma support if past trauma is a contributing factor. I learned about trauma and the low energy freeze state (a survival mechanism) from Dr. Aimie Apigian, MD, MS, MPH. There is the feeling of numbness and being disconnected when in the freeze state and this eventually becomes the default pattern that the nervous system has been wired into.

Individuals with low endorphins are often in the freeze state and are more emotionally sensitive to everything and because of this they experience much more stress. They also experience a feeling of numbness and feel disconnected. The encouraging news is that the amino acid DPA helps ease the low endorphin symptoms while they are addressing their trauma in other ways, like with somatic work and addressing other biological underpinnings of trauma.

DPA is comforting, helps you feel safe and is often described as feeling like someone just hugged you.

Endorphins and the amino acid DPA (d-phenylalanine) and DLPA (dl-phenylalanine)

If you’re new to endorphins and the amino acid DPA and DLPA here are some blog posts:

Low GABA and low serotonin are common in multiple sclerosis too

Low endorphins are just the tip of the iceberg when it comes to the underlying neurotransmitter imbalances in MS. Low GABA and low serotonin are common too.

As mentioned, I recently blogged about the GABA research and applications of GABA when it comes to multiple sclerosis. Here is that link.

When that blog was published I had a number of questions (see the comments in the above link) from folks asking if GABA could help with similar symptoms in Parkinson’s: swallowing and voice problems, pain and hand spasms. I said yes – if GABA is low, the amino acid GABA will help. As important as your diagnosis is, it’s always the questionnaire/symptoms that help you figure out if it’s worth trialing GABA, DPA or one of the other amino acids.

Both GABA and DPA can help pain symptoms via different mechanisms, so it’s a matter of doing a trial of each amino acid, one at a time and monitoring your response.

Tryptophan and/or 5-HTP may help ease some of the low serotonin worry-type of anxiety, fear, panic attacks, obsessing, low mood and MS-specific pain issues and insomnia.

If you do have more than one imbalance (which is not unusual), you need to figure out which imbalance you have and address that with the relevant amino acids, one at a time. I have clients pick the area that is more problematic for them and start there.

I gathered some of this research while preparing for an interview with the wonderful Dr. Terry Wahls, MD and author of “The Wahls Protocol.” We were both pleasantly surprised to see these endorphin/MS and other neurotransmitter connections.

I really look forward to seeing future research on the use of the amino acids DPA, GABA and tryptophan in MS. And I’d love to be involved in some studies if you are associated with a research facility or do research.

Resources if you are new to using amino acids as supplements

If you are new to using amino acids as supplements, here is the Amino Acids Mood Questionnaire from The Antianxiety Food Solution (you can see all the symptoms of neurotransmitter imbalances, including low GABA, low serotonin and low endorphins).

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.

Do you have multiple sclerosis and has the amino acid DPA helped with your low endorphin symptoms: pain, depression, alcohol addiction, comfort and trauma support?

How much has helped and which product do you use?

Do you find opening a capsule of DPA helps more than swallowing the DPA capsule?

Were you surprised that DPA would help so much?

What else has helped your multiple sclerosis symptoms? And have you also addressed low GABA and serotonin with amino acids GABA and tryptophan?

If you have questions and other feedback please share it here too.

When using the amino acid DPA (d-phenylalanine) I have more resilience and more buffer in the caregiving work I do, and just the oops’s of life

July 29, 2022 By Trudy Scott 10 Comments

I had not investigated DPA as I am a joyful, happy person. But recently I have been so depleted that I benefitted much from taking licorice to boost cortisol (who knew cortisol isn’t always to be lowered?)

Your presentation convinced me to try DPA as when I get depleted enough I get weepy (not sadness, just from being physically drained). Wow. I used a 500 mg dose of Lidke Endorphigen in the afternoon, and that has made a startling difference. I have more resilience now, more buffer, in the caregiving work I do, and just the oops’s of life.

I have been an avid note-taker of your summits and the interviews you give on the summits of others, and have recommended your book and blog to precious ones looking for answers to their health challenges.

Because of your diligence, I have been greatly helped by using GABA, 5-HTP (seems to work better for me than tryptophan), and tyrosine (so my thyroid glandular works more effectively).

Thank you ever so much for presenting information with evidence backing in a way that truly meets my curious, investigative, analytical mind. I love to know the whys and hows of things.

Ellen shared this feedback on one of the blogs after she heard me talk about DPA and low endorphins on The Anxiety Summit 5: Gut-Brain Axis. I’m sharing her wonderful results to give you a practical resource if you find yourself depleted and needing resilience as a caregiver. I’m also sharing this in order to illustrate that it’s not always easy to know when to trial a certain amino acid.

Ellen commented that she appreciated understanding the whys and hows of things. She is referring to my explanation of how DPA (d-phenylalanine) works. It’s an amino acid that destroys the enzyme that breaks down endorphins and thereby helps to raise your endorphins. With low endorphins you can feel very weepy, overly emotional, be extra sensitive to emotional pain, be sensitive to physical pain, and indulge in comfort/reward eating. You also often don’t feel joy.

Even though she was well versed in the use of GABA, 5-HTP and tyrosine (and seeing results), she had not investigated DPA. She described herself as a joyful and happy person so she didn’t think she needed DPA.

But her caregiving work (and other health and life challenges) had left her depleted and she started to feel weepy. And she is happy to share that DPA reversed that feeling. I’m thrilled for her and appreciate her for sharing.

The DPA product, how best to use it and how it differs from DLPA

Ellen mentions Lidtke Endorphigen which contains 500 mg of DPA. This product has been a long-time firm favorite with my clients and those in my community.

I used to recommend simply chewing the capsule to get the quickest and best effects and this worked well when it was produced in a gelatin capsule. Now it’s made with a cellulose capsule and chewing doesn’t work at all well, so opening the capsule (or just biting off the top) and tipping the powder into your mouth works best.

I’m often asked about the difference between DPA and DLPA (dl-phenylalanine) so if you have this question you can read more about that here.

Some of the supporting research

Research supports the use of DPA for helping to ease depression and the fact that caregivers are prone to an emotional burden.

D-phenylalanine and other enkephalinase inhibitors as pharmacological agents: implications for some important therapeutic application

It is proposed that the enkephalinase [a subgroup of endorphins] inhibitors may be effective in a number of human “endorphin deficiency diseases” such as depression…

Burden and quality of life of caregivers for hemodialysis patients

Caregivers of hemodialysis patients may experience a significant burden and an adverse effect on their quality of life. Emotional aspects of caregivers (particularly female spouses) and patients are important predictors of burden.

The study mentions that “Social support and psychological interventions should be considered to improve caregiver life and patient outcomes.”

There is no research that I am aware of that has found DPA to be beneficial for caregivers but until we have that research, let’s include nutritional support based on clinical results we see.

This case, Caregiving Burden, Stress, and Health Effects Among Family Caregivers of Adult Cancer Patients, illustrates what many caregivers experience: “extremely high levels of psychological distress, including anxiety, depression, worry and extreme loneliness.”

Ellen was already using GABA, 5-HTP and tyrosine when she added DPA, so as a caregiver she was already addressing her low GABA physical-type anxiety (with GABA), low serotonin worry-type anxiety (with 5-HTP) and low dopamine low-energy/low mood (with tyrosine). Adding DPA was the cherry-on-the-top for her weepiness and low resilience, and gave her more of a buffer.

Resources if you are new to using the amino acids as supplements

If you are new to using any of the amino acids as supplements, here is the Amino Acids Mood Questionnaire from The Antianxiety Food Solution (you can see all the symptoms of neurotransmitter imbalances, including low endorphins).

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, self-medicating with alcohol and more.

The book doesn’t include product names (per the publisher’s request) so as mentioned above, 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.

As mentioned above, Lidtke Endorphigen is the DPA product I’ve had the most success with (and it can be found in my online store). Doctor’s Best D-phenylalanine is also a good product.

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. There are many moms in the program who are having much success with their kids.

You can then use this knowledge to then trial DPA and other amino acids or move on to the Amazing Aminos for Anxiety Program and get help there.

If you’re a caregiver have you used DPA with success and if yes how has it helped? And do you feel more resilient?

Has GABA, 5-HTP (or tryptophan) and tyrosine also helped you?

What else helps you as a caregiver and what advice would you share with others taking care of a loved one?

If you’re a practitioner, do you use DPA with your clients/patients?

If you have questions please share them here too.