Dietary protein: an essential nutrient for bone health.
日粮蛋白质：一个重要营养素骨骼健康。
Iron is an essential nutrient with crucial biological function.
铁是人体必需的微量元素，有着重要的生物学功能。
The other essential nutrient to pay attention to is omega-3fatty acids.
另外一种要注意的必需营养素是欧米茄- 3 (omega - 3)脂肪酸。
And nitrogen is one of those and in fact it's an essential nutrient.
氮就是这些物质之一，事实上它是一种主要的营养物质。
Iodine is an essential nutrient for growth and normal development of the brain.
碘是一种对于生长和大脑的正常发育必需的营养素。
Iodine is an essential nutrient for growth and normal development of the brain.
碘是一种对于生长和大脑的正常发育必需的营养素。
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