So what exactly is Homocysteine?

Homocysteine is an amino acid produced in the human body by the chemical conversion of methionine, a compound regularly consumed within the diet. When methionine-rich foods such as 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.More of the SAMe - the body's best anti-ageing agent.

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 the body's best anti-ageing agent and also works as a detoxifier. A low glutathione level has been linked to an increased risk of death from all common causes. The key to a long healthy life - keep the homocysteine level down and the glutathione level up.