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"attempt to mix plant types to get complete protein, is that NO plant protein source has enough L-methionine to qualify as a "source" for this amino acid, essential to muscle repair. They "think" they are getting the methionine they need, from nutrition lableing on their plant protein sources, but the methionine they get is not L-methionine, its a different molecular form, not the essential one" Dan I'm not a vegan but, being a molecular biologist I can tell you this statement is wrong. There are 8 essential amino acids required for animal nutrition, essential meaning you can't synthesize them or enough of them. Tryptophan, Methionine, Valine, Threonine, phenylalanine, leucine, Isoleucine and lysine. If you mix corn/grains with legumes you can get all eight essential amino acids. Either one by itself won't do it. Corn has tryptophan and Methionine while legumes have Isoleucine and lysine. Both corn and legumes have valine, threonine, Phenylalanine and leucine. Regarding molecular form, all amino acids used by plants and animals are the L- form as opposed to the D-form which is only made by chemists, not plants and animals. When a chemical reaction is used in the lab to make "methionine" both enantiomers (L and D) are made and the mixture is called racemic. If you mean that it is accumulated as aldo met or aldo-s-met that may be true but the body can convert any of these forms into the needed forms. Kevin Schooler -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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