Functions of Vitamin D, The Kidney Hormone

There are two nutritionally important forms of vitamin D in men and they are calciferol or vitamin D3 and cholecalciferol or vitamin D3. Calciferol is derived by irradiation of plant sterol, ergosterol. Cholecalciferol is naturally occurring vitamin D and is found in fish liver oil and animal fats. Cholecalciferol is also derived from exposure to … Read more