Nutritional Supplement

Methionine

Also indexed as:L-Methionine

Methionine is one of the essential amino acids (building blocks of protein), meaning that it cannot be produced by the body, and must be provided by the diet. It supplies sulfur and other compounds required by the body for normal metabolism and growth. Methionine also belongs to a group of compounds called lipotropics, or chemicals that help the liver process fats (lipids). Others in this group include choline, inositol, and betaine (trimethylglycine).

References

1. Muller F, Svardal AM, Aukrust P, et al. Elevated plasma concentration of reduced homocysteine in patients with human immunodeficiency virus infection. Am J Clin Nutr 1996;242-6.

2. Revillard JP. Lipid peroxidation in Human Immunodeficiency Virus infection. J Acquired Immunodef Synd 1992;5:637-8.

3. Singer P, Katz DP, Dillon L, et al. Nutritional aspects of the acquired immunodeficiency syndrome. Am J Gastroenterol 1992;87:265-73.

4. Tan SV, Guiloff RJ. Hypothesis on the pathogenesis of vacuolar myelopathy, dementia, and peripheral neuropathy in AIDS. J Neurol Neurosurg Psychiat 1998;65:23-8.

5. Keating JN, Trimble KC, Mulcahy F, et al. Evidence of brain methyltransferase inhibition and early brain involvement in HIV-positive patients. Lancet 1991;337:935-9.

6. Dorfman D, DiRocco A, Simpson D, et al. Oral methionine may improve neuropsychological function in patients with AIDS myelopathy: results of an open-label trial. AIDS 1997;11:1066-7.

7. Valesini G, Barnaba V, Benvenuto R, et al. A calf thymus lysate improves clinical symptoms and T-cell defects in the early stages of HIV infection: Second report. Eur J Cancer Clin Oncol 1987;23:1915-9.

8. Shaw GM, Velie EM, Schaffer DM. Is dietary intake of methionine associated with a reduction in risk for neural tube defect-associated pregnancies? Teratology 1997;56:295-9.

9. Toborek M, Hennig B. Is methionine an atherogenic amino acid? J Optimal Nutr 1994;3:80-3.

10. McAuley DF, Hanratty CG, McGurk C, et al. Effect of methionine supplementation on endothelial function, plasma homocysteine, and lipid peroxidation. J Toxicol Clin Toxicol 1999;37:435-40.

11. Leach FN, Braganza JM. Methionine is important in treatment of chronic pancreatitis. Br Med J 1998;316:474 [letter].

Copyright © 2024 TraceGains, Inc. All rights reserved.

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The information presented by TraceGains is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2024.

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