在我们的研究中，我们力求保证没有一种氨基酸缺乏。
In our studies we tried to ensure that there were no amino acid deficiencies.
这样的补充包括预防必需氨基酸缺乏以及避免负氮平衡。
The supplements are included to prevent essential amino acid deficiencies and avoid negative protein balance.
人体不能合成色氨酸，而这种氨基酸的缺乏会导致睡眠失调，引发更严重的紧张和焦虑。
The body can not make tryptophan and a lack of this amino acid can result in sleep disorders which lead to higher levels of anxiety and stress.
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