US Department of Health and Human Services, National Institutes of Health, Office of Dietary Supplements
That way, the company can be sure its products contain exactly what the label states, without the risk of contaminants and heavy metals
One-quarter tablet (200 micrograms) Actifolate One-quarter tablet Intrinsic B12/folate (200 mcg of folate as folic acid, 5-methyl tetrahydrofolate, and 5-formyl tetrahydrofolate (folinic acid or leucovorin), 125 mcg of vitamin B12 as cyanocobalamin, 22.5 mg of calcium, 17.25 mg of phosphorus, and 5 mg of intrinsic factor)
451 g/tablet) to oral contraceptives is intended to raise folate status in women of childbearing age (202)
Vitamin C is part of the antioxidant network glutathione recycles
That methyl group is small, but biologically it's powerful