Now with Methylcobalamin! Quality Natural Supplements Gluten Free Hi Potency Dietary Supplement Nutritional Support for Natural Energy Production Each tablet supplies a precise daily measure of Vitamin B-12 (as cyanocobalamin). Vitamin B-12 has a broad range of physiological roles and benefits, but is best known for its part in the nutritional support of red blood cells. Nature's Plus brand vitamins are manufactured according to the highest possible standards, with advanced quality control techniques always applied.