Vitamin D3 is a fat-soluble vitamin that helps maintain strong bones and teeth by supporting healthy serum calcium levels.* It does this by promoting absorption of calcium in the digestive tract, as well as reducing calcium loss through urine.* Additionally, Vitamin D supports colon health, and may promote a healthy immune system.* Vitamin D occurs naturally in very few foods, and although it can be produced in the body, obtaining adequate skin absorption from sun exposure can be difficult year round.* Vital Nutrients offers supplemental Vitamin D in the active form D3 (also known as cholecalciferol).*
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