许多关于营养不足的研究是基于水培法种植植物，即在无土液体营养液中。

Much of the research on nutrient deficiencies is based on growing plants hydroponically, that is, in soilless liquid nutrient solutions.

youdao

他们也患有营养不足的疾病。

They suffer the diseases of poor nutrition.

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这将包括营养不足的功能，如肌肉无力，疲劳和抑郁的后果。

It will include the functional consequences of undernutrition, such as muscle weakness, fatigue and depression.

youdao

First, let's talk about malnutrition. Now usually that concept gets used to talk about too little nutrition, but in fact, if you consider mal to mean poor rather than too little, and poor nutrition can really get manifested as under-nutrition, over-nutrition, or just unhealthy eating in general.

我们首先谈谈营养不良,现在我们通常把这个概念视同于缺乏营养,但实际上理解为"不好的",比"不足"更为恰当,一般而言,不好的营养可以被理解为,营养不足,营养过剩,或者仅仅是指不健康的饮食

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选