Are You Feeling Blue?
Whether it’s the monthly blues, a rough and stressful day or just a sudden sense of sadness, D-Phenylalanine can help. If you’ve tried boosting serotonin levels but still feel sad and blue, you should know D-Phenylalanine works in a completely different way to support a good mood.
Nutrition Science News, 2/99
"D-phenylalanine, which does not normally occur in the body or in food, is metabolized to phenylethylamine (PEA), an amphetaminelike compound that occurs normally in the human brain and has been shown to have mood-elevating effects. Decreased urinary levels of PEA (suggesting a deficiency) have been found in some depressed patients. Although PEA can be synthesized from L-phenylalanine, a large proportion of this amino acid is preferentially converted to L-tyrosine. D-phenylalanine is therefore the preferred substrate for increasing the synthesis of PEA--although L-phenylalanine would also have a mild antidepressant effect because of its conversion to L-tyrosine and its partial conversion to PEA. Because D-phenylalanine is not widely available, the mixture D,L-phenylalanine is often used when an antidepressant effect is desired"
Note: This article was written in 1999, before pure D-Phenylalanine was available by itself.
Note: Pure D-Phenylalanine is now available from The Road To Health:
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