How Methionine May Serve As A Natural Anti-Depressant

Methionine is one of the 10 essential amino acids which cannot be manufactured in the body, and must therefore be obtained from the diet. Like other amino acids, methionine is vital for the formation of the countless proteins which make up not only the body's dry tissue, but many of its vital enzymes. Logically enough, as it is an essential component of protein, it is protein foods which are the best source of dietary methionine. Meat, poultry, fish and dairy products are known as first class proteins because they contain all of the essential amino acids. A diet containing a good supply of each of these food groups should normally provide sufficient amino acids, including methionine, for most purposes, but vegetarians can also achieve satisfactory intakes through careful food combining.Particular attention, however, has been focussed on methionine as the precursor of s-adenosyl methionine, also known as SAM or SAM-e, a compound produced naturally in the body by the metabolism of methionine. S-adenosyl methionine was isolated in Europe in the 1950s, and has been used there as a prescription drug, but it has only very recently been seen as a food supplement in the US. […]

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