Relative Efficacy of Vitamins D2 and D3 in Adult Humans
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Ages Eligible for Study:
21 Years to 65 Years (Adult, Older Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
willingness to withhold supplement use for duration of study
willingness to avoid sun exposure for duration of study
vitamin D supplement use
conditions that affect vitamin D metabolism by the body
vitamin D status
To determine relative potency of vitamins D2 and D3 under conditions of continuous administration
To determine change in vitamin D content of subcutaneous fat after 12 weeks' administration
Additional relevant MeSH terms:
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Physiological Effects of Drugs
Bone Density Conservation Agents
Calcium-Regulating Hormones and Agents