Nutri'D3

"A food supplement dosed at 2000UI for your vitamin D3 deficiencies. Additional information Vitamin D is a pro-hormone. It is fat soluble and therefore only soluble in fats. It is normally made either from cholesterol in the diet or from ergosterol which is converted into vitamin D under the effect of UVB rays from the sun. To be active, vitamin D must be transformed into calcitriol after passing through the liver and kidneys.