Four ounces of chicken contain twenty-eight grams of protein, which is almost half the recommended daily dietary allowance.

4盎司的鸡肉含有28克的蛋白质，那几乎是推荐人体每日摄入量的一半了。

No one needs more than 100 percent of the Recommended Dietary Allowance (RDA) of a nutrient, says the American Dietetic Association.

美国营养协会表示，我们服用一种营养品时，绝不可超过其标示的建议剂量(RDA)。

The results showed that their mean daily intake of energy of sanatory stage and work stage had reached 156% and 97% of the recommended dietary allowance respectively.

结果表明，疗养期和作业期矿工的平均每日热能摄入量分别达到其供给量标准的156%和97%。

Most Americans do not eat the Recommended Dietary Allowance(RDA)of magnesium (280 mg. for women, 350 mg for men), says Dr. Mildred S. Seelig, former president of the American College of Nutrition.

前美国营养学院的院长米尔德里德•S•西利格博士说，大部分美国人镁的摄入量都达不到推荐饮食定量（RDA）的标准（女性280毫克，男性350毫克）。

The Recommended Daily Allowance is 5 micrograms and good dietary sources are dairy produce (not low fat), oily fish, cod liver oil, egg yolk, fortified margarines.

建议的每日津贴是5微克和良好的饮食来源是乳制品生产(不低脂肪)，油性鱼类，鱼肝油，蛋黄，强化人造黄油。