If you don’t like sun exposure, NOW Foods Vitamin D-3 is the best vitamin D for you. Produced by a family-owned and operated company, this supplement is all about quality and giving you the vitamins and nutrients for optimal health. It contains 10,000IU of vitamin D and will help you maintain healthy bones and support your immune system. Furthermore, the supplement is gluten, dairy, corn, soy, egg-free, kosher, and non-GMO.