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Vitamin D2 is also known as ergocalciferol, and vitamin D3 is also known as cholecalciferol.. This is important for patients who have purchased a dietary supplement that does not indicate the specific type of vitamin D in the product by number but have listed the scientific name.uman beings do not make vitamin D2, and most healthy fish contain vitamin D3. Vitamin D3 is the same price as vitamin D2. Vitamin D3 may be less toxic than D2 because higher concentrations of D2 circulate in the blood when consumed (compared to vitamin D3).
Vitamin B2, also known as riboflavin, or additive E101, is one of eight B vitamins that are essential for human health.Riboflavin can be found in grains, plants and dairy products. It is crucial for breaking down food components, absorbing other nutrients, and maintaining tissue.Vitamin B2 is a water-soluble vitamin.This means it dissolves in water. There are two types of vitamins-water-soluble and fat-soluble. Water-soluble vitamins are carried through the bloodstream, whatever is not required is eliminated in urine.itamin B2, also known as riboflavin, or additive E101, is one of eight B vitamins that are essential for human health.