) is a water-soluble vitamin necessary for many different chemical reactions in the body. It is claimed to be beneficial for a variety of different uses (although some uses are more credible than others).
The main role of vitamin B6 in the body is to work as a coenzyme in numerous different chemical reactions. This means that vitamin B6 helps enzymes to work properly. It is important for a wide variety of reactions, including the metabolism of amino acids, carbohydrates, and lipids.
Vitamin B6 is also important for the formation of hemoglobin, an important part of red blood cells. This is why low vitamin B6 can lead to anemia.
Low vitamin B6
can increase levels of homocysteine, an amino acid that can cause problems if it builds up to high levels. In particular, it is thought that high homocysteine may contribute to problems such as cardiovascular disease
or blood clots. Vitamin B6
decreases homocysteine levels after meals (but does not really affect fasting homocysteine levels). Low levels of vitamin B6
may also increase levels of C-reactive protein (CRP), an inflammatory molecule that may be related to heart disease
and several other medical conditions.
The vitamin may also have antioxidant properties. In addition, it may decrease kidney stone
formation by decreasing the amount of oxalate (a component of some types of kidney stones
) excreted in the urine. It is also thought that vitamin B6
may increase levels of the neurotransmitter serotonin, which is why some people think it may be useful for treating depression
or attention deficit hyperactivity disorder (ADHD