Questions? Feedback? powered by Olark live chat software

NOW Foods L-Methionine 500mg

100 capsules
NOW Foods L-Methionine 500mg

L-methionine is an essential amino acid that acts as a precursor to glutathione, the body’s primary antioxidant. It protects the liver from fatty build up and aids in its natural detoxification processes. L-methionine benefits the muscles by stimulating creatine production. This amino acid is not produced by the body, so it must be obtained from the diet or L-methionine supplements.

Supplement Facts

Serving Size: 2 Capsules
Servings Per Container: 50


Amount Per Serving

% Daily Value

Vitamin B-6 (from Pyridoxine HCl)

20 mg


L-Methionine (Free-Form)

1.0 g (1,000mg)


† Daily Value not established.

Other Ingredients: Gelatin (capsule), magnesium stearate (vegetable source) and silica.

Suggested Use

Take 2 capsules daily as needed, preferably on an empty stomach.


For adults only. Consult Doctor if pregnant, nursing, taking medication or have a medical condition. L-Methionine may increase the blood levels of homocysteine in some individuals.


L-methionine is an essential amino acid for healthy functioning of the muscles, heart, liver, joints, hair, nails, and skin. It is required for the synthesis of glutathione, one of the strongest cellular antioxidants in the body. Thus, L-methionine helps ensure that there are adequate glutathione concentrations in the cells. Glutathione is known to support healthy energy levels, exhibit anti-aging effects, stimulate immune defences, and promote the liver’s detoxification processes. Non-clinical studies suggest that it can facilitate the excretion of heavy metals like mercury, lead, and copper in the urine. L-methionine supplements also offer protection to the liver against fat build up, ensuring maximum liver functions. It also assists in providing the muscles energy by ensuring adequate creatine production. Thus, L-methionine supplements also support athletic performance and bodybuilding activities. L-methionine benefits the joints because it is being converted to SAMe (S-Adenosyl-L-Methionine), an active compound needed for joint support. Joint support is critical for people affected by arthritis, an inflammatory joint disease. Since L-methionine contains sulfur, it may also promote healthy hair, skin, and nails.

L-methionine or methionine is one of the eight essential amino acids. It contains sulfur, an important ingredient in the production of glutathione. Glutathione is the body’s most abundant and strongest cellular antioxidant. L-methionine is also a precursor to the sulfur containing non-essential amino acids taurine and cysteine. Taurine and Cysteine are involved in eliminating tissues, maintaining cardiovascular health, and building strong muscle tissues. L-methionine exhibits lipotropic effects, helping the liver to efficiently process fats to prevent fat build up. L-methionine deficiency may lead to fatty liver disease. By ensuring adequate glutathione levels, L-methionine benefits Liver detox. This essential amino acid is also needed for the synthesis of creatine, a substance that provides energy to the skeletal muscles and the heart muscle. Methionine is also involved in the formation of collagen, a protein that makes up the skin, hair, and nails. Being an essential amino acid, L-methionine is not produced by the body and must be obtained from the diet and supplements. L-methionine rich foods include beef, chicken, pork, fish, eggs, sesame and pumpkin seeds, cheese, nuts, lentils, and soybeans. Those on vegan diet are at risk for methionine deficiency and may benefit from L-methionine supplementation.