ISRCTN20236112已完成不适用
Dietary requirements for vitamin D: an investigation of the relative significance of dietary intake and sunlight on vitamin D status in young and elderly adults
Food Standards Agency (UK)0 个研究点目标入组 480 人开始时间: 2008年2月21日最近更新:
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 480
研究概览
简要总结
暂无简介。
研究设计
- 研究类型
- Interventional
入排标准
- 性别
- All
入选标准
- •1. Consenting adult men and women
- •2. Aged 20 - 85 years
- •3. In general good health
排除标准
- •1. Severe medical illness
- •2. Hypercalcaemia
- •3. Known intestinal malabsorption syndrome
- •4. Excessive alcohol use
- •5. Those who took medications known to interfere with vitamin D metabolism
- •6. Pregnancy or planning to become pregnant during the six months of the intervention
- •7. Those taking high dose vitamin D-containing supplements for three months before initiation of study
- •8. Those who over the six-month course of intervention are planning a winter vacation to a location at which either the altitude or the latitude would be predicted to result in significant cutaneous vitamin D synthesis from solar radiation (e.g., a mountain ski resort or a winter sun coastal resort)
研究者
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