Vitamin D3, also known as Cholecalciferol, is found in fatty food from animal sources like fish, liver, egg yolk, and butter. It is also the more potent form of Vitamin D that is naturally produced by our skin when exposed to sunlight that is known to increase levels of Vitamin D in the blood more effectively to support the immune system as well as the mainenance of the overall muscle and bone health. Nutravita's High Strength Vitamin D3 capsules has been formulated to be easily absorbed by the body. This Vitamin D for immune health come with 400 easy-to-take capsules for a 13-month supply for both men and women.
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