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How Long Does Vitamin D Stay in the Body?



Vitamin D will stay in the body until the body uses it.

Vitamin D Is Fat-Soluble

Vitamin D is a fat-soluble vitamin, which means any intake is stored in the fat cells until it is needed.  You can get vitamin D through your diet, sun exposure, and supplements.  Very few foods contain vitamin D naturally, which is why many foods are fortified with vitamin D such as milk and cereals.

Excessive Vitamin D Health Risks

It is unlikely that an individual eating a well balanced diet will have to worry about ingesting excessive amounts of vitamin D. According to the National Health and Nutrition Examination Survey, only 24% of adult men and 17% of adult women get their vitamin D from food sources.

Side effects of excessive amounts of vitamin D are generally minimal and include nausea, constipation, weakness, weight loss, and poor appetite.  Though the recommended daily intake for healthy individuals between the ages of 19-50 is 5 mg/200IU, according to the National Institute of Health’s Office of Dietary Supplements, the tolerable upper intake levels for vitamin D are substantially higher at 50mg/2,000IU. Recent studies have placed the tolerable upper intake levels even higher at 10,000IU daily.



“Dietary Supplement Fact Sheet: Vitamin D.” Office of Dietary Supplements – HOME. N.p., n.d. Web. 4 Oct. 2010.

Hathcock JN, Shao A, Vieth R, Heaney R. Risk assessment for vitamin D. Am J Clin Nutr 2007;85:6-18. print.

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