Also see Methanol.

Human nutrition

There is inconclusive clinical evidence on methionine supplementation. Dietary restriction of methionine can lead to bone-related disorders.

Overconsumption of methionine, the methyl group donor in DNA methylation, is related to cancer growth in a number of studies.

Requirements

The Food and Nutrition Board of the U.S. Institute of Medicine set Recommended Dietary Allowances (RDAs) for essential amino acids