今天的营养食品通常是采取胶囊的形式或作为食品添加剂来使之成为一种有益的饮食辅助。
Nutraceuticals today are often taken in capsule form or as food additives in the hope that the nutraceutical will be a beneficial diet additive.
这次研究中，他们用了两种混有多种食品添加剂的饮料，以及一种未添加任何色素或防腐剂而只是作为安慰剂的饮料。
Their study also used two different cocktails of additives as well as a placebo drink that contained no food colourings or preservatives.
因此它们既可作为液体或粉末状的食品添加剂，也可单独使用。
As a result, they can be used as liquid or powder food additives or taken on their own.
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