The body produces part of its Vitamin D independently from sunlight—hence the nickname—but for people living in northern latitudes, where exposure to winter sunlight is limited, the body’s natural Vitamin D production may not be sufficient. Swanson High Potency Vitamin D capsules solve this problem by providing an impressive 1000 IU of Vitamin D, which is the most biologically active form of Vitamin D. It supports the body and a healthy immune system.
- Vitamin D contributes to the maintenance of normal bones and to the normal function of the immune system;
- promotes calcium absorption in the body.




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