Nutrient X

Vitamin D 4000


- Supports healthy vascular tone

- May support healthy blood lipid levels

VITAMIN D is mostly attained through the skin’s exposure to sunlight. Cholecalciferol, also known as vitamin D3, is formed from 7-dehydrocholestero in the skin after exposure to UV light. Unfortunately, due to the risk of skin cancer, many individuals are limiting sunlight exposure or using liberal amounts of sun protective factors (SPF) in sun screen lotions, both of which limit vitamin D production in the skin. In the body, cholecalciferol is hydroxylated to calcidiol in the liver and then to calcitriol, the active form of vitamin D, in the kidneys. The active form of vitamin D works with parathyroid hormone and calcitonin to regulate serum calcium and phosphorus concentrations.

Vitamin D deficiency causes increased parathyroid hormone activity which acts to maintain serum calcium and phosphate concentrations at the expense of skeletal calcium.

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