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High Doses Of Vitamin D Found Safe, Effective For Obese Adolescents

November 1, 2011: 12:00 AM EST
U.S. researchers who conducted a study among obese adolescents – all of whom were diagnosed with a vitamin D deficiency – found that a daily dose of 4,000 IUs of vitamin D3 was a safe and effective way to improve vitamin D levels. Obese adolescents are only about half as efficient at using vitamin D as lean adolescents. For example, lean adolescents need only take about 100 IUs to increase their serum 25OHD levels by 1 ng/ml. Obese adolescents, however, require about 200 IUs to achieve the same increase. The researchers recommended that physicians need to carefully evaluate the vitamin D status of overweight and obese patients.
Catherine Peterson et al., "Safety and efficacy of using high dose (4000 IU daily) vitamin D supplementation to improve the vitamin D status of obese adolescents", Press release, presentation at the annual meeting of Experimental Biology, November 01, 2011, © Experimental Biology
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