Does the sulfur - containing amino acid methionine sound familiar? (nutritionfacts.org)
HCY 1 and HCY 2 are infant formula and medical food powders that are free of the essential amino acid methionine for infants, toddlers, children, and adults with homocystinuria. (enfamil.com)
The breakdown of the essential amino acid methionine creates the toxic by - product methyl mercaptan. (drstevenlin.com)