NOW Foods, L-Tryptophan

Name: NOW Foods, L-Tryptophan
Brand: NOW Foods
SKU: NOW-00167
Price: 0.41 USD
Availability: InStock

by NOW Foods

SKU NOW-00167

UPC 733739001672

$0.41 - $0.45

$0.41

$0.41 - $0.45

$0.41

$0.01 /g of L-Tryptophan (Free Form)

Qty:

Price Comparison

Quality Testing

Testing Result

Claimed

USP Allowed

Click here to view full testing results.

Supplement & Nutrition Facts

Serving Size: 2 Veg Capsules
Servings Per Container: 60
	Amount Per Serving	% Daily Value
L-Tryptophan (Free-Form)	1 g (1,000 mg)	**
** Daily Value not established.

Product Description

Description

Improve mood and sleep quality with NOW Foods L-Tryptophan, a precursor to serotonin and melatonin.

NOW Foods L-Tryptophan is a non-GMO, vegetarian/vegan, kosher, and halal dietary supplement that supports relaxation, positive mood, and restful sleep. This essential amino acid is critical for the production of serotonin and melatonin, neurotransmitters that help regulate mood, sleep patterns, and immune system function. Every lot is tested to be free of Peak E and microbial contamination.

Supports relaxation, positive mood, and restful sleep
Essential amino acid critical for the production of serotonin and melatonin
Non-GMO, vegetarian/vegan, kosher, and halal supplement tested for purity

Directions

Take 1-2 capsules 2 to 3 times daily on an empty stomach, with final dose at bedtime, or as directed by your physician.

Ingredients

Hypromellose (cellulose capsule), rice flour, ascorbyl palmitate and stearic acid (vegetable source).

Not manufactured with wheat, gluten soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Health risks and warnings

Natural color variation may occur in this product.

Store in a cool, dry place after opening.

For adults only. Consult physician if pregnant/nursing, taking medication (especially antidepressants such as SSRIs and MAOIs), or have a medical condition. May cause drowsiness. Do not use with alcoholic beverage or while operating heavy machinery. Keep out of reach of children.

Please note

At Health Orchard, we are committed to providing accurate product information and images. However, manufacturers may update their product packaging or ingredients, and these changes may not be immediately reflected on our website. It's possible for products to be shipped with different packaging than what is shown online. For the most accurate and safe use of any product, we advise reading the product's label, warnings, and instructions rather than relying solely on the details provided by Health Orchard.

Visit the manufacturer's website for more information.

Questions and Answers about NOW Foods, L-Tryptophan

Have a Question?

Ask a Question

What is the difference between tryptophan and L-tryptophan?

Tryptophan and L-tryptophan refer to the same amino acid, but L-tryptophan specifically denotes the biologically active form found in nature and used by the human body. The "L" prefix indicates the left-handed orientation of the molecule, which is the form that can be readily utilized in protein synthesis and metabolic processes within the body.
Is L-tryptophan a good sleep aid?

L-tryptophan is often considered a helpful sleep aid due to its role as a precursor to serotonin and melatonin, neurotransmitters involved in regulating sleep and mood. By potentially increasing the production of these sleep-promoting compounds, L-tryptophan may help improve sleep quality and reduce the time it takes to fall asleep for some individuals.
Is L-tryptophan safe now?

L-tryptophan is generally considered safe when used as directed, with many years of research and use supporting its safety profile. The concerns that led to its temporary ban in the past were related to contaminated supplements, not the amino acid itself. Modern manufacturing processes and quality controls have significantly reduced such risks.
Why was tryptophan banned?

Tryptophan was temporarily banned by the FDA in 1989 due to an outbreak of a rare and serious condition called eosinophilia-myalgia syndrome (EMS). This outbreak was later linked to contaminated batches of L-tryptophan from a single Japanese manufacturer, rather than the amino acid itself. The ban was lifted in 2001 after improved manufacturing processes and quality controls were implemented.
Who should avoid tryptophan?

Certain individuals should exercise caution or avoid tryptophan supplements, including those taking medications that affect serotonin levels (such as SSRIs or MAOIs), people with liver or kidney disease, and those with a history of eosinophilia-myalgia syndrome. Additionally, pregnant or breastfeeding women should consult before using tryptophan supplements due to limited research on its effects in these populations.
Is NOW Foods L-Tryptophan FDA approved?

NOW Foods, L-Tryptophan, like other dietary supplements, is not FDA approved in the same way prescription medications are. However, it is regulated under the Dietary Supplement Health and Education Act (DSHEA) of 1994. This means that while the FDA does not approve dietary supplements before they are marketed, it does monitor their safety and can take action against unsafe or misbranded products.

Marketplace

The Marketplace not only offers thousands of health supplements, but also allows you to see the prices of those supplements at all major retailers.

Library

The Library will provide articles, guidebooks, and video tutorials from real doctors to help you understand all you need to know about your health supplements.

Forum

The Forum allows healthcare professionals and paying users to discuss health and supplements on an organized and user-friendly platform.