Karla Nunn > Products > Supplements > Tryptophan (L-Form)

Tryptophan (L-Form)


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  • May help with Sleep
  • May enhance moods
  • Unflavored (taste is very bitter)
  • An essential Amino Acid

Muscle Feast L-Tryptophan:

  • May improve moods
  • May help with muscle growth
  • May help with sleep (not to be taken daily for sleep)
  • May increase sense of well-being

What is L-Tryptophan?

Tryptophan (also called L-tryptophan) is an essential amino acid that acts like a natural mood regulator, since it has the ability to help the body produce and balance certain hormones naturally. Supplementing with tryptophan-rich foods or taking supplements helps bring on natural calming effects, induces sleep, fights anxiety and can also help burn more body fat. Tryptophan has also been found to stimulate the release of growth hormones and even reduce food cravings for carbohydrates and help kick a sugar addiction in some cases.

An important byproduct of tryptophan is 5HTP (5-hyrdoxytryptophan), which works in the brain and central nervous system to boost feelings of well-being, connection and safety. It does this by increasing production of one of the body’s main feel-good hormones, serotonin. Serotonin is the same calming chemical released when we eat certain comfort foods like carbohydrates, which is why supplementing with tryptophan has been shown to help control appetite and contribute to easier weight loss or maintenance.

What are the benefits of L-Tryptophan?

There’s evidence that tryptophan has natural sedative effects that can help you sleep better, and as a result it can help improve overall health. A lack of sleep is a risk factor for problems like depression, decline in motor coordination, reduced concentration and memory, muscle aches, weight gain, and more.

Not only can tryptophan help you sleep more soundly, but it’s also been shown to be a natural mood lifter and offer protection against depression, anxiety and the numerous negative symptoms associated with high stress levels (like irritable bowel syndrome and heart disease, for example). Many studies have found that L-tryptophan converts to calming serotonin in the brain and helps make other essential amino acids more available, which in turn helps control someone’s moods and turn down production of stress hormones.

Tryptophan supplements can be used to help someone stick to a healthy diet and work toward the goal of losing weight. Increased serotonin levels promote calmness, clarity of mind, control over cravings or impulses, and even better metabolic functioning, which all boost weight loss.

L-tryptophan is needed for the synthesis of niacin (vitamin B3) through its role as a provitamin, and niacin is important for the conversion of macronutrients in our diets (carbohydrates, proteins and fats) into usable energy that supports the metabolism. Niacin/vitamin B3 is also crucial for cognitive functions, including the synthesis of important neurotransmitters and enzymes that control our appetite.

Another interesting benefit is that tryptophan helps improve physical performance and fights fatigue, which means it can keep you motivated to improve your fitness levels and regularly get enough exercise. It’s been used by competitive athletes for many years since it’s known to improve training results, lower performance anxiety and help people stay motivated to reach their goals.

Recommended dose of L-Tryptophan:

1000 mg taken 1-3 times per day or as directed by your physician.

Please consult with your medical professional before taking this supplement.

If you have liver or kidney disease, you should not take amino acids without asking your doctor. It is crucial that you always speak to a knowledgeable healthcare provider before taking any dietary supplements. This advice is also recommended for anyone suffering from a health condition.

Pregnant and nursing women should only take an amino acid after consulting your physician.

Any side effects of L-Tryptophan?

Reported side effects include heartburn, stomach pain, gas, vomiting, diarrhea, and loss of appetite.


This product has tastes very bitter and is difficult to take in pill form.  Put a small amount of this in a flavored drink or juice.  You may want to start with a 1/4 scoop.  Our scoop sizes are 1/4 teaspoon.




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