Natural Factors Vitamin D3 2500iu 500 Softgels

Why choose Natural Factors Vitamin D3? First, our product features vitamin D3, which is better at raising your 25(OH)D levels than vitamin D2 and lasts longer in your body. Second, because vitamin D is fat-soluble and better absorbed in the presence of fat, our vitamin D3 softgels are delivered in a base of organic flaxseed oil.