Tag: Vitamin d3 production

Vitamin D3 synthesis was first accurately determined in the 1930s by Windaus et al., revealing the key roles of precursor molecules and UV light in how is vitamin D3 cholecalciferol made in animals and for supplements.

According to the National Institutes of Health, vitamin D3 supplements are commonly produced using lanolin, a wax from sheep's wool. The industrial process mimics the natural synthesis of vitamin D3 that occurs in human skin and other animals upon exposure to sunlight. This guide will take you through the multi-step journey of how this crucial nutrient is created for widespread consumption.