Cystine: An Amino Acid

Cystine is an amino acid that is particularly notable because it is the least soluble of all of the naturally occurring amino acids and because it precipitates out of solution in the genetic disease cystinuria to form stones in the urinary tract. Cystine is the chief sulfur-containing compound in protein.

Cystine functions as an antioxidant and is a powerful aid to the body in protecting against radiation and pollution.

Cystine can help slow down the aging process, deactivate free radicals, neutralize toxins; aids in protein synthesis and presents cellular change. Cystine has been shown as a detoxification agent to protect the body against damage of alcohol and cigarette smoking, and may be effective in preventing hangovers, as well as preventing liver and brain damage.

Cystine is necessary for the formation of the skin, which aids in the recovery from burns and surgical operations. Hair and skin are made up 10 to 14 percent Cystine.

Cystine is best taken with selenium, vitamin B6 and vitamin E. People suffering from AIDS/HIV may benefit from cysteine in proper amounts, as low levels are normally reported in people with this problem.

People suffering from diabetes and cystinuria should be careful of cystine supplements.

NAC (N-Acetyl Cysteine) is a more easily absorbed and useful form of the amino acid L-cysteine. It is a powerful antioxidant that helps fight free radicals. It also helps the body synthesize glutathione levels in the body. NAC works in the body to remove toxins such as lead, arsenic, mercury. It also is believed to support the immune system and protect the liver.

The body can synthesize cystine from the amino acid methionine but is also found in high protein foods such as poultry, wheat, broccoli, eggs as well as garlic, onions and red sweet peppers.

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