16 Purpose for RDA Modification-Dietary reference intake (DRI)—膳食参考摄入量 ⚫ DRIs are reference values that are quantitative estimates of nutrients intakes to be used for planning and assessing diets for healthy people. ⚫ DRIs include RDA as goals for intake by individuals, but also present three new types of reference values
16 Purpose for RDA Modification-Dietary reference intake (DRI)—膳食参考摄入量 ⚫ DRIs are reference values that are quantitative estimates of nutrients intakes to be used for planning and assessing diets for healthy people. ⚫ DRIs include RDA as goals for intake by individuals, but also present three new types of reference values
17 DRIs content ⚫ 1. Estimated Average Requirement (EAR)—估 计平均摄入量 ⚫ 2. RDA( Recommended Nutrition Intake, RNI)—推荐摄入量 ⚫ 3.Adequate intake (AI)—适宜摄入量 ⚫ 4.Tolerable upper intake level (UL)—可耐受最 高摄入量
17 DRIs content ⚫ 1. Estimated Average Requirement (EAR)—估 计平均摄入量 ⚫ 2. RDA( Recommended Nutrition Intake, RNI)—推荐摄入量 ⚫ 3.Adequate intake (AI)—适宜摄入量 ⚫ 4.Tolerable upper intake level (UL)—可耐受最 高摄入量
18 EAR—估计平均需要量 ⚫ The EAR is the amount of nutrient that is estimated to meet the nutrient requirement of half the healthy individuals in a life stage and gender group. ⚫ 某一特定性别,年龄及生理状况群体中对 某营养素需要量的平均值.只有一半人群 能满足
18 EAR—估计平均需要量 ⚫ The EAR is the amount of nutrient that is estimated to meet the nutrient requirement of half the healthy individuals in a life stage and gender group. ⚫ 某一特定性别,年龄及生理状况群体中对 某营养素需要量的平均值.只有一半人群 能满足
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20 Use of EAR ⚫ 1. 是一个特定人群的平均需要量，主要用于计 划和评价群体的膳食。 ⚫ 对于人群, EAR 用于评估群体中摄入不足的发生率, ⚫ 对于个体,可以检查其摄入不足的可能性. 如果摄入 〈 EAR+2SD-摄入不足 ⚫ 2. 是RNI的基础, ⚫ RNI=EAR+2SD; ⚫ 如样本不够时: or RNI=1.2 EAR
20 Use of EAR ⚫ 1. 是一个特定人群的平均需要量，主要用于计 划和评价群体的膳食。 ⚫ 对于人群, EAR 用于评估群体中摄入不足的发生率, ⚫ 对于个体,可以检查其摄入不足的可能性. 如果摄入 〈 EAR+2SD-摄入不足 ⚫ 2. 是RNI的基础, ⚫ RNI=EAR+2SD; ⚫ 如样本不够时: or RNI=1.2 EAR