Iron Bioavailability From MyPyramid Menus
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 16
- 试验地点
- 2
- 主要终点
- Nonheme Iron Absorption
研究概览
简要总结
This study will measure nonheme iron absorption from each of the 7 daily MyPyramid menus. Such measurements will confirm whether modifications are needed to meet dietary iron recommendations and will provide data useful for validation algorithms to calculate dietary iron bioavailability.
详细描述
Nonheme iron absorption is measured with 59Fe tracer added to a 1-day menu, with iron retention detected two weeks later in a whole body scintillation counter. Each subject has iron absorption measured from each of 7 1-d menus formulated to meet the US dietary guidelines (MyPyramid menus), with the order of menus randomly assigned. Each subject participates for 14 wk to test all 7 menus.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 21 Years 至 50 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Women 21 to 50 years old
排除标准
- •High blood pressure,
- •Disorders affecting iron absorption or retention,
- •Underlying medical conditions,
- •Taking medication other than birth control pills or hormone replacement therapy,
- •Pregnancy,
- •Daily use of analgesics
研究组 & 干预措施
MyPyramid Menu Days 1-7
Iron absorption measured from one of the 7 different USDA MyPyramid menus for 1 day each, in randomized order for each subject, separated by 2 weeks
干预措施: My Pyramid menu days 1, 2, 3, 4, 5, 6 or 7 (Behavioral)
结局指标
主要结局
Nonheme Iron Absorption
时间窗: 2 weeks (wks)
Absorption was estimated from whole body retention of a Iron-59 radiotracer, 2 weeks after consuming a menu labeled with the isotope, then normalized to a ferritin of 15 nanogram/milliLiter (ng/mL)
次要结局
未报告次要终点