You can find B12 in four chemical compounds: methylcobalamin, hydroxocobalamin, adenosylcobalamin and cyanocobalamin. Methylcobalamin and adenosylcobalamin are in meat and dairy products.

First, it’s important to choose a supplement with a high-quality form of B12, such as methylcobalamin or adenosylcobalamin. These forms are more easily absorbed and utilized by the body than the ...

Additionally, the premium B12 in this product comes from equal amounts of adenosylcobalamin and methylcobalamin, two active forms of B12 that work together to support energy levels. We appreciate ...

Department of Chemistry, University of Wisconsin─Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States ...