Amino acids

Encyclopedia of Alternative Medicine, Apr 06, 2001 by Jane Spehar

Supplements are recommended by alternative medical practitioners particularly for those who are not getting a proper diet, especially vegetarians who might not be getting a balance of complete protein, as well as athletes, anyone under severe stress, and anyone whose alcohol intake level is moderate to high.

Supplements of various amino acids are available primarily in capsule, tablet, or powder form. A common way of taking amino acids is in a "multiple" amino acid gel cap. These contain sources of protein from gelatin, soy, and whey. The market for supplements in wholesale, retail, and internet sales was estimated to reach into the millions of dollars, with literally hundreds available. Internet sales were a fast-growing area particularly with the use of such supplements as creatine powder publicized by well-known Olympic stars and professional athletes. Daily usage of creatine as evident from research indicated that usage should be leveled at 5 g of powder in a glass of orange juice, and could be taken up to four times a day during peak athletic training. Maintenance dosages were recommended at 5 g once a day.

Because amino acids are naturally produced substances both in the human body and in the protein derived from animal and dairy products, as well as being present in food combinations such as beans and rice, such supplements are not regulated by the Federal Drug Administration (FDA), nor are there any specified daily requirements, and they also do not show up in either drug or urine tests. Amino acid supplements might be classified as having no affect at all. Long-term effects were not yet evident, however, due to the relatively recent phenomenon of use.

Interactions of amino acids with drugs has not been sufficiently studied to determine yet if any adverse effects result from using amino acids with medications.

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