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Serum 25-Hydroxyvitamin D Response To Daily Oral Supplementation With 800 Iu Cholecalciferol In Premenopausal Women Living In Maine, Monica Nelson
Serum 25-Hydroxyvitamin D Response To Daily Oral Supplementation With 800 Iu Cholecalciferol In Premenopausal Women Living In Maine, Monica Nelson
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The purpose of this research was to measure the serum 25-hydroxyvitamin D [25(OH)D] response to daily supplementation with 800 IU vitamin D3 during winter in premenopausal women living in Maine, and to examine the effects of body composition and hormonal contraceptive use on baseline serum 25(OH)D levels and the response to supplementation. One hundred twelve women (22.2±3.7 years old) received placebo from March 2005 until September 2005 when they were randomized to receive either placebo or 800 IU vitamin D3 through February 2006. Eighty-six women completed the study. Body composition was measured by dual-energy x-ray absorptiometry. Actual vitamin D3 content …