Natural Factors gives you a healthy dose of 5,000 I.U. of D3
) Vitamin D is mainly manufactured on the skin when in sunlight. It plays a dual role as both a vitamin and a hormone. Natural Factor’s Vitamin D3 is carefully blended with organic flaxseed oil and delivered in an easy-to-swallow softgel. It is the same form (cholecalciferol) as is derived from sunlight. 5,000 I.U.