Nutrient Database

L-Methionine

amino acid

Approved

General information about nutrients. No diagnosis, no medical advice. If you take medication, are pregnant or have a medical condition, talk to your doctor before taking supplements.

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Overview

Essential sulfur-containing amino acid, a precursor for methylation and glutathione synthesis.

Research status

Methionine restriction is studied in rodent models.

Top 5 food sources

EggsfishBrazil nutssesame seedsbeef
Expert consensus: Moderate

Essential but excess may raise homocysteine. Balance with B vitamins and folate.