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汉语拼音：yíng yǎng sù

提供机体生长发育、维护健康和劳动所需能量的各种饮食所含的营养成分。主要包括糖类、油脂、蛋白质、维生素、矿物质、粗纤维和水等。

• Since the mean requirement for many nutrients is not known with certainty, it is often difficult to establish an RDA.

  由于很多营养素的平均需要量不能很好的确定，所以很难评价RDA。

• This micronutrient malnutrition is often called the "hidden hunger" .

  这种微量营养素营养不良常常被称为“隐性饥饿”。

• By adding a gene from another plant into the target plant, scientists are able to develop a plant that produces more of a desired nutrient.

  通过将来源于另一种植物的基因导入目标植物中，科学家能够培育出一种可以合成更多营养素的植物。

• Dr Corson's models show, however, that this inefficiency is true only if demand for water and the nutrients it contains is constant.

  然而，科森博士的模型表明这种低效只有在对水和包含营养素的需求恒定的情况下才能发生。

• Bee Pollen contains trace amounts of a wide range of nutrients and is a popular food supplement in Europe and among athletes.

  蜂花粉包含量大范围营养素和是一个普遍的食品补充在欧洲和在运动员之中。

• Se is the most effective and potential anticancer nutrient, said the American physicians.

  美国医学家称硒是至今发现最强烈也最具潜力的抗癌营养素。

• While rice is able to provide adequate energy, it has an incomplete amino acid profile and contains limited amounts of micronutrients.

  米饭能够提供适当的精力，但同时它有一不完全含氨基酸质，而且只包含了有限的微量营养素。

• Billions suffer from micronutrient deficiencies, an insidious form of malnutrition caused by an inadequate diet.

  几十亿人患有微量营养素匮乏症，这是膳食不足造成的一种危险的营养不良。

• Regardless of the antioxidant debate, they claim the nutrients in many pills are in a form that cannot be easily or naturally absorbed.

  不管氧化剂的争论如何，科学家称这些营养素用药丸的形式不容易被身体自然吸收。