All Homocysteine is chemically transformed into methionine and cysteine with the help of folic acid, vitamin B12, and vitamin B6.
Homocysteine is an amino acid produced in the human body by the chemical conversion of the amino acid methionine. When methionine-rich foods such as meats and fish are eaten, the methionine is taken into the bloodstream and into cells where a methyl group (one carbon and three hydrogen atoms) is removed to produce homocysteine.
Elevated levels of homocysteine in the blood are associated with neuropathy, atherosclerosis as well as an increased risk of heart attacks, strokes, and perhaps even Alzheimer's disease.
If the body then adds a different methyl group it produces a chemical called S-adenosyl methionine (SAMe), which is a useful natural antidepressant, fights against arthritis and is excellent at lowering homocysteine levels.
As levels of SAMe increase, another vital chemical is produced from homocysteine called glutathione. This is one of the body's important anti-aging agent and also plays a vital role works as a detoxifier of the liver.