Viridian Vitamin D3 400iu is an essential nutrient that contributes to the normal function of the immune system and blood calcium levels which in turn supports the maintenance of normal bones and teeth. As fear of sun-exposure has grown and lifestyles have become more sedentary, exposure to the sun has dropped dramatically and vitamin D deficiency and the incidence of rickets has surged. All Vitamin D supplements from Viridian Nutrition are vegan. Viridian Vitamin D3 400iu and 2000iu are derived from lichen.
