Amino Acids


structure of amino acids


Dietary Supplement Ripoffs to Avoid: Amino Acid Pills

There is no long-term advantage for the strength trainee to taking expensive free form amino acid powders over simply ingesting whole proteins. However, if you do buy an amino acid powder (which I don't suggest) you expect it to contain single free form aminos acids, right?

Never trust the front label. Check the ingredients. The supplement ripoffs I am referring to are so-called amino acid capsules that actually contain overpriced whey or casein protein. Not free form single aminos but whole proteins compressed into a pill or put in a capsule. They will typically list an amino acid profile very prominently on the back of the label. This profile is nothing more than the typical amino acid yields of the whey or casein sources they use. When whey is used it is usually a mixture of whey protein concentrate or a mixture of concentrate and even cheaper non concentrated whey. Some may contain concentrates and isolates.

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The Role Of Carnitine in Disease

Carnitine is a conditionally essential nutrient that plays a vital role in energy production and fatty acid metabolism. Vegetarians possess a greater bioavailability than meat eaters. Distinct deficiencies arise either from genetic mutation of carnitine transporters or in association with other disorders such as liver or kidney disease. Carnitine deficiency occurs in aberrations of carnitine regulation in disorders such as diabetes, sepsis, cardiomyopathy, malnutrition, cirrhosis, endocrine disorders and with aging. Nutritional supplementation of L-carnitine, the biologically active form of carnitine, is ameliorative for uremic patients, and can improve nerve conduction, neuropathic pain and immune function in diabetes patients while it is life-saving for patients suffering primary carnitine deficiency. Clinical application of carnitine holds much promise in a range of neural disorders such as Alzheimer's disease, hepatic encephalopathy and other painful neuropathies. Topical application in dry eye offers osmoprotection and modulates immune and inflammatory responses. Carnitine has been recognized as a nutritional supplement in cardiovascular disease and there is increasing evidence that carnitine supplementation may be beneficial in treating obesity, improving glucose intolerance and total energy expenditure.

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