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The Benefits of Vitamin DVitamin D’s major function is to support bone health by enhancing calcium and phosphorus absorption and maintaining healthy blood levels of these minerals.† In addition, Vitamin D can help to maintain a healthy immune system.† [Vitamin D may regulate and support normal functions of immune cells in the body.†]
A lack of exposure to sunlight may reduce Vitamin D levels in the body, especially in the winter. Vitamin D supplements help maintain strong bones and teeth and provide support for immune and neuromuscular health.†
When and How Much to TakeSince Vitamin D in the body comes from both dietary sources and sunlight exposure, an individual’s needs can vary greatly. Assuming minimal sun exposure, it is recommended to consume at least 15mcg (600 IU) per day for adults and 20mcg (800 IU) per day for people age 71 and older.
Since Vitamin D is fat soluble, absorption may be increased if taking with a fat containing meal. Individuals living in northern climates or who are concerned about the risks of sun exposure should also consider taking a Vitamin D supplement.
Food Sources for Vitamin DNatural sources of Vitamin D are limited, and include cod liver oil, some fatty fish such as mackerel, salmon, and sardines; liver, and egg yolks. [Milk, bread, cereal and orange juice may also be fortified with Vitamin D.]