B-12 Gold - 2,400 mcg (Methyl + Adenosyl Bioactive Complex)
Vitamin B-12 GoldBioactive Complex with Methyl B12 + Adenosyl B12
Vitamin B-12, also called cobalamin, is a water-soluble vitamin that helps support optimal brain and nervous system health and assists in the formation of red blood cells. It is one of the eight B vitamins and is involved in the metabolism of every cell of the human body including DNA synthesis and regulation, synthesis of fatty acids, and energy production.
There are four forms of vitamin B12 and they are differentiated by the side group attached to the cobalamin molecule—adenosylcobalamin, cyanocobalamin, hydroxocobalamin, and methylcobalamin. Methylcobalamin and adenosylcobalamin are the two forms of B12 that are coenzymated and active within the body, and they perform different functions within the body.
Methylcobalamin is predominantly found in blood plasma, cytosol cells, and certain body fluids (like cerebral spinal fluid). It works directly within the cells, where it is responsible for the reactivation of folic acid (folate). Methylcobalamin also helps break down homocysteine, an amino acid and byproduct of protein metabolism, that can adversely impact heart health. Methylcobalamin is also a precursor of S-adenosylmethionine (or SAMe), the most important methyl donor in the body. Overall methylcobalamin supports cardiovascular function, neurological health, and emotional wellness.
Adenosylcobalamin is found in cellular tissues where it is stored in the mitochondria, which are the ‘energy centers’ in the body. Most of the B12 reserves are actually stored in the liver as adenosylcobalamin, and are converted to methylcobalamin as needed.In addition to being implicated in the metabolic cycle for the production of energy, adenosylcobalamin supports optimal liver health and plays a vital role in carbohydrate, fat and protein metabolism.