n.蛋氨酸；甲硫氨酸

Methionine is an essential amino acid found in protein-rich foods like eggs and meat.
甲硫氨酸是一种在鸡蛋和肉类等富含蛋白质的食物中发现的必需氨基酸。
The diet of newborns often lacks methionine, necessitating supplementation.
新生儿的饮食常常缺乏甲硫氨酸，需要补充。
Methionine plays a crucial role in the production of neurotransmitters in the brain.
甲硫氨酸在大脑神经递质的产生中起着关键作用。
Methionine metabolism can be influenced by genetic variations, affecting health outcomes.
甲硫氨酸代谢会受遗传变异影响，从而影响健康结果。
The body converts homocysteine into methionine through the action of vitamin B12.
维生素B12的作用下，身体将同型半胱氨酸转化为甲硫氨酸。
Methionine is a precursor for the synthesis of other important molecules, such as S-adenosylmethionine (SAM).
甲硫氨酸是合成其他重要分子（如S-腺苷蛋氨酸）的前体。
A deficiency in methionine can lead to symptoms like fatigue and muscle weakness.
甲硫氨酸缺乏可能导致疲劳和肌肉无力等症状。
Athletes sometimes use methylated forms of methionine as a supplement to improve performance.
运动员有时会使用甲基化的甲硫氨酸补充剂来提高表现。
Methionine is particularly important for those following a vegetarian or vegan diet, as it's not naturally occurring in plant-based proteins.
对于素食者或纯素食者来说，甲硫氨酸尤其重要，因为植物蛋白中不含天然甲硫氨酸。
The study investigated the effects of methionine intake on cognitive function in elderly individuals.
研究探讨了甲硫氨酸摄入对老年人认知功能的影响。