对健康成年人安全使用L-氨酸补充剂的评估:一项随机双盲对照试验
Hideki Matsumoto1,2, Naoki Miura3, Masaki Naito4
1Bio and Fine Chemicals Division, Ajinomoto Co. Inc, Tokyo, Japan. matsumoto.phc@h.email.ne.jp.
Amino acids
|May 26, 2025
概括
这项研究发现,高达12克/天的L-氨酸补充剂在健康的成年男性中是安全的,并且耐受性良好. 没有观察到任何显著的不良影响,为这种必需氨基酸确定了没有观察到的不良影响水平 (NOAEL).
科学领域:
- 营养科学 营养科学
- 临床药理学 临床药理学
- 生物化学 生物化学
背景情况:
- L-氨酸是一种常见于食补充剂中的必需氨基酸.
- 了解不同剂量的L-氨酸的安全性和耐受性对于消费品至关重要.
研究的目的:
- 在健康的成年男性中评估L-氨酸分级剂量的安全性和耐受性.
- 为了确定L-氨酸补充剂的无观察不良影响水平 (NOAEL).
主要方法:
- 进行了一项随机,双盲,安慰剂控制的交叉临床试验.
- 健康的成年男性接受安慰剂或L-氨酸 (3,6,9,12克/天) 4周.
- 安全性评估包括临床检查,人体测量测量,血液测试和不良事件监测.
主要成果:
- 补充L-氨酸并没有影响人类参数或饮食摄入量.
- 血中亚斯巴酸氨基转移酶和肌酸激酶的轻微,短暂的增加在9g/day时被观察到,但不是12g/day.
- 血L-threonine和L-2-aminobutyrate水平在每天6g或更高的剂量时增加.
- 轻度不良事件很少发生,并在研究期间消失.
结论:
- 在健康的成年男性中,L-氨酸的没有观察到的不良影响水平 (NOAEL) 为每天12g.
- 在推的补充剂量中,L-氨酸是安全的,并且耐受性良好.
- 这项研究提供了支持营养补充剂中L-氨酸安全性的证据.
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