Amino acids are crucial building blocks of protein. Each amino acid sequence that builds a protein gets to determine “each protein’s unique 3-dimensional structure and its specific function,” such as repairing body tissue, breaking down food, and development and growth. Plus, amino acids are a wonderful, natural source of energy.

Amino acids are broken down into three distinct groupings: essential, nonessential, and conditional.

Conditional amino acids are generally only essential if you are under stress or ill and these include arginine, cysteine, glutamine, tyrosine, glycine, ornithine, proline, and serine. Nonessential amino acids are actually produced by our body, with or without food, and include alanine, arginine, asparagine, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine. Essential amino acids, on the other hand, are labeled as such due to the fact that our body cannot make them and therefore we must consume them via diet. These remaining nine essential amino acids include histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

Many people believe that these nine essential amino acids can only be found in animal food and products, yet there are a host of plant-based foods that can offer these in your diet. With that said, if you’re having a difficult time getting the right amount of these essential amino acids from your vegan diet, try amino acid supplements!

1. Truth Nutrition Fermented Vegan BCAA Protein Powder SupplementTruth Nutrition Fermented Vegan BCAA Protein Powder Supplement

Truth Nutrition Fermented Vegan BCAA Protein Powder Supplement

This Truth Nutrition Fermented Vegan BCAA Protein Powder Supplement is a great complete vegan amino acid supplement for a great price! Using a new flavored blend this amino acid-rich powder sources natural branched-chain amino acids to focus on boosting energy, elevating strength, promoting endurance, building lean muscle, burning fat, and aiding in recovery. Truth Nutrition offers a synthetic-free, 100 percent natural, vegan, plant-based amino acid formula that has been fermented. This supplement powder is free of chemicals, artificial colors, artificial flavors, and artificial sweeteners. As Truth Nutrition puts it “proven science, meets mother nature.” A 7.5-ounce jar costs $34.49.

DB1 says “I held off on writing a review because I wanted to get through my first container. The taste took a while to get used to. I’m thinking that’s because I’m so used to the fabricated BCAA’s. By the end of the container, I’m now used to the taste of the Red Raspberry. (With that said, I’m now purchasing a container of the watermelon.) Performance seems the same as other BCAA’s… and knowing that it’s vegan makes me feel good. This was a hard fought 5-stars… they earned it.”

2. Natural Nutra L Lysine HCl Vegan SupplementNatural Nutra L Lysine HCl Vegan Supplement

Natural Nutra L Lysine HCl Vegan Supplement

L-lysine is one of nine essential amino acids that helps with “protein synthesis, hormone and enzyme production, and the absorption of calcium,” as well as “energy production, immune function and the production of collagen and elastin.” While L-lysine is rare in plant-based food, you can get your daily dose from this Natural Nutra L Lysine HCl Vegan Supplement. Along with all these benefits, this supplement promotes healthy bone development and helps with micro-injury recovery after exercise. Natural Nutra uses a USA based, green manufacturing facility that is certified Good Manufacturing Practices (GMP). A 50-capsule bottle costs $18.95.

Amazon Customer says “Very satisfied with a clean, quality product. Pricing is fair, and packaging and delivery excellent.”

3. Pure Encapsulations l-Lysine Hypoallergenic SupplementPure Encapsulations l-Lysine Hypoallergenic Supplement

Pure Encapsulations l-Lysine Hypoallergenic Supplement

Another l-Lysine amino acid supplement with a different blend! This Pure Encapsulations l-Lysine Hypoallergenic Supplement not only helps with bone health, but it’s unique formula targets immune support, providing a boost for your natural defenses. This supplement focuses on the purest of ingredients that provide a hypoallergenic option for the most sensitive person and it’s also gluten-free, non-GMO, vegetarian-friendly, and vegan-friendly. This product is also free of magnesium stearate, hydrogenated fat, artificial sweeteners, and artificial colors. A 90-capsule bottle costs $11.30.

D. K. Haddad says “I really like Pure Encapsulations products; the quality is so much better than other supplements I have used. I take l-Lysine for my thyroid and adrenals and seems to be helping.”

4. Now Supplements L-TryptophanNow Supplements L-Tryptophan

Now Supplements L-Tryptophan

Tryptophan is yet another of the nine essential amino acids that can only be procured from your diet. While this amino acid is known for making you sleepy, it has many other crucial functions including maintaining “proper nitrogen balance and is a precursor to serotonin, a neurotransmitter that regulates your appetite, sleep, and mood.” This Now Supplements L-Tryptophan is a premium grade, vegetarian-friendly, vegan-friendly, and non-GMO supplement that supports relaxation and encourages positive mood. This product is free of nanoparticle nutrients, artificial colors, sweeteners, and flavors, harmful pesticides, parabens, and steroids. A 120-capsule bottle costs 14.99.

Crazy Gracie says “I purchased, because I suffer from depression and meds don’t work, make me feel bad … This is the best product, I haven’t felt this happy and normal in months. I think this product is a replacement for prescription meds for mild depression… LOVE IT. I am more relaxed, happy, things don’t bother me like they used to, memory is better, overall better well-being, and sleep better. I will use this product for a long time and refer to friends and family. Thank you…..!”

5. Health4All L-Threonine & B6 SupplementHealth4All L-Threonine & B6 Supplement

Health4All L-Threonine & B6 Supplement

Feeling like you need more of L-Threonine? This essential amino acid is a “principal part of structural proteins such as collagen and elastin, which are important components of the skin and connective tissue,” as well as plays a crucial role in “fat metabolism and immune function.” This Health4All L-Threonine & B6 Supplement may be the perfect option for you! While this supplement is manufactured in the UK, Amazon is happy to get it for you. Along with being 100 percent vegan, this product also offers a source of vitamin B6. A 60-capsule bottle costs $8.91.

6. L-Lysine by Rejuvenation TherapeuticsL-Lysine by Rejuvenation Therapeutics

L-Lysine by Rejuvenation Therapeutics

Three l-Lysine amino acids supplements? Is that too much? Absolutely not! L-Lysine is one of the hardest of the amino acids to find in plant-based foods, therefore here’s yet another to try out. With that said, this L-Lysine by Rejuvenation Therapeutics supplement offers a unique blend to help the body rebuild, rejuvenate, and boost immunity. Plus, this formula also aims to boost collagen synthesis and elastin production, which is a crucial agent for reducing fine lines and wrinkles, promoting healthy, moisturized, plump, and youthful skin. This supplement is vegan-friendly and vegetarian-friendly with only the purest of ingredients. A 60-capsule bottle costs $9.95.

A Greenhouse Keeping Company LLC says “I like it it seems to give me strength.”

7. Pure Science L-Tryptophan SupplementsPure Science L-Tryptophan Supplement

Pure Science L-Tryptophan Supplement

Not really feeling that first tryptophan supplement? Here’s another great option to try out in your vegan diet! This Pure Science L-Tryptophan Supplement is offering quality and quantity at a screaming deal. This unique vegan and vegetarian-friendly formula helps to regulate and foster a positive mood, promotes relaxation, and aids in sleep by reducing anxiety through tryptophans ability to stimulate serotonin and melatonin. On top of that, this supplement also supports metabolism and maintains a healthy nervous system. Pure Science is proud to offer a product manufactured with a Good Manufacturing Practices certification, aiming to stick to their motto “Rooted in Science, Backed by Research.” A 100-capsule bottle costs $19.67.

Wanda Claus says “I’ve had trouble sleeping for the past 2 years. My Dr. prescribed medication to help me sleep, but I felt uneasy taking it because of the possibility of becoming addicted to it. I did some research to find a more natural solution and found Pure Science L-Tryptophan. I take 2 capsules in the evening before bed, and fall asleep more quickly and don’t wake up in the early hours of the morning anymore. After 3 months of taking this, I feel more rested, and am very happy with this product.”

8. Nutricost L-Isoleucine SupplementNutricost L-Isoleucine Supplement

Nutricost L-Isoleucine Supplement

One of the more unheard of essential amino acids, L-isoleucine “is an integral part of muscle metabolism —  it’s concentrated within muscle tissue — as well as immune function, hemoglobin production, and energy regulation.” This Nutricost L-Isoleucine Supplement offers a non-GMO, gluten-free, and vegan-friendly L-isoleucine supplement that supports muscle tissue structure and building. A 240-capsule bottle costs $14.95.

Amazon Customer says “The greatest exercise vitamin I have ever experienced. Isoleucine has impacted my workout and created new strength, new stamina, new courage, new power, new vitality, new understanding, new sports, and new friendships. I am very grateful to have discovered this powerful supplement. I would recommend this product for any inclined bodybuilder or workout professional.”

9. BodyHealth PerfectAmino XP Cool Lime PowderBodyHealth Perfect Amino XP Cool Lime Powder

BodyHealth Perfect Amino XP Cool Lime Powder

This BodyHealth Perfect Amino XP Cool Lime Powder is a great supplement powder that delivers 8 of the 9 essential amino acids all at once! This powder is perfect for your morning protein shake or afternoon smoothie to get you going in the morning or give you that energy boost in the afternoon. Plus, there’s no need to add flavoring or sweeteners as this blend has a natural lime taste and is stevia-sweetened. BodyHealth is proud to offer a completely natural, vegan-friendly, plant-based supplement powder that offers 99 percent bioavailability with zero calories that helps burn fat, build muscle, promotes recovery, and supports healthy bones. A 30-servings jar costs $37.95.

JD says “This product was recommended by a widely acclaimed medical doctor as a way to increase muscle mass and strength. This researched blend of amino acids, from optimal sources, has been shown in research trials to build muscle. It works, as my friends and I have verified. This may be particularly valuable for elderly persons who cannot exercise. Depending on the dose taken, you can choose whether you will have your result in 6 months or a year! You can also get the same supplement in a powder blend that can be mixed into fruit juice, for those who find it difficult to take hard pills.”

10. Doctor’s Best L-Tryptophan from TryptopureDoctor's Best L-Tryptophan from Tryptopure

Doctor’s Best L-Tryptophan from Tryptopure

Maybe the formula wasn’t perfect or the price wasn’t right on the other listed tryptophan supplements, so here’s another option that may meet all your needs! Doctor’s Best is a long-standing, trusted vegan supplement provider. This Doctor’s Best L-Tryptophan from Tryptopure doesn’t disappoint offering a non-GMO, gluten-free, soy-free, and 100 percent vegan tryptophan supplement. This formula aims to promote normal, restful sleep, healthy mood fluctuation, and level behavior. A 90-capsule bottle costs $15.00.

Jim C. says “Two of these taken on an empty stomach about an hour before bedtime and you will have no problem falling asleep. Unfortunately, Tryptophan does not keep me asleep the entire night and I may need to also take melatonin or other sleep aids when I have to get up in the middle of the night. Tryptophan is about the only thing that I have ever taken that works every time I take it (as long as you do not take it with any protein or on a full stomach otherwise it will just be converted into protein and will not stay in its amino acid form). All other sleep aid formulas, etc. lose their effectiveness after you have taken them several days in a row.”

We also highly recommend downloading our Food Monster App, which is available for iPhone, and can also be found on Instagram and Facebook. The app has more than 15,000 plant-based, allergy-friendly recipes, and subscribers gain access to new recipes every day. Check it out!

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