L-Methionine is an essential sulfur-containing amino acid crucial for protein synthesis and various metabolic processes. It serves as a precursor to important molecules like S-adenosylmethionine (SAMe), which is involved in methylation reactions, and glutathione, a powerful antioxidant.
In fitness and sports, L-Methionine supports muscle recovery, detoxification, and cellular repair. It also aids in fat metabolism and liver function, which are important for maintaining overall health and performance under physical stress.
Though not typically used as a standalone supplement in sports nutrition, its presence in complete proteins and blends contributes to muscle repair and metabolic health.
Synonyms:
Methionine
Benefits:
- Supports protein synthesis and tissue repair
- Contributes to antioxidant production (via glutathione)
- Aids in liver detoxification and fat metabolism
- Promotes cellular health and regeneration
- Involved in methylation reactions important for energy production
Sources:
Found in eggs, meat, fish, dairy, and some nuts and seeds. Also available in supplement form.
Observations:
Commonly included in complete amino acid or protein blends. Dosages in supplements are usually balanced with other amino acids. Excessive intake may affect homocysteine levels, which should be monitored in sensitive individuals.
Areas of Study Related:
Biochemistry, Nutritional Science, Sports Medicine, Metabolic Health.