Recommended Daily Allowances
Recommended Daily Allowances-
Taking extra vitamins beyond the recommended daily allowances won 't give you more energy .
每日服用的维生素超过所建议的摄入量不会给你提供更多能量。
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However , test performance did not improve significantly in students who were already meeting recommended daily allowances for zinc intake .
当同样的试验用于那些已经补充日常所需（推荐的）锌含量的学生，并无明显提高学生智力和反应的测试结果。
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Results : ① Intake of calcium , zinc and retinal were lower than 80 % RDA ( recommended daily allowances ) . Intake of high-quality protein accounted for 43 % .
统计常见病的患病率。结果：①儿童膳食营养素摄入中钙、锌和视黄醇未达每日推荐供给量标准（RDA）的80%，优质蛋白质的摄入占蛋白质总摄入量的43%；
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