It would be wrong to purposely deprive people of an essential nutrient in order to study the effects .
为了获得实验结果而有目的地剥夺人所需的基本营养素的做法是不对的。
Add a food to the diet and you are adding other substances besides the nutrient you are interested in .
如果把一种食物加入到饮食结构中去,那么你不但加入了你感兴趣的营养素,你同时还加入了一些其他物质。
The fact is , you could have your very own nutrient requirements determined , but it would be terribly costly , and would likely bear strong resemblance to the current rdas .
The researchers also examined how the global distribution of soil animals relates to factors such as climate , soil nutrient levels and aboveground biodiversity .
研究员还检测全球分布的土壤动物与环境因素诸如气候、土壤养分水平和地上生物多样性的联系。
Boron -- a nutrient found in abundance in apples , boron supports strong bones and a healthy brain .
硼在苹果中发现的一种丰富营养素,硼能壮骨和健脑。
Nutrient deficiency is not easy to cure .
营养的缺乏并不容易治愈。
They are also an excellent source of protein , so that nutrient area is covered too .
们还一个极好的蛋白质来源,因此,它是很有营养的。
As a result , many pregnant women in the west take supplements that contain the nutrient .
结果,西方许多怀孕的妇女吃含有这种营养的食物。
The deep subsurface of the planet is thought to be quite " nutrient poor " - there 's not a lot of food to go around .
地球表面以下的深层地带被认为是“相当缺乏营养的”,周围没有多少食物。
One popular idea is that when calories are curbed , the body has to adapt to the nutrient deficiency-and in doing so , it becomes more resistant to stress generally .