可以吃的大脑食物γ-胺基丁酸
GABA是大脑中主要的神经传导物质之一，作用像刹车剂，能抑制脑部神经活动，让您放松及冷静。
临床应用
放松心情与增强免疫
Abdou, Adham M., et al. "Relaxation and immunity enhancement effects of γ‐Aminobutyric acid (GABA) administration in humans." Biofactors 26.3 (2006): 201-208.
有效改善睡眠
Byun, Jung-Ick, et al. "Safety and efficacy of gamma-aminobutyric acid from fermented rice germ in patients with insomnia symptoms: A randomized, double-blind trial." Journal of Clinical Neurology 14.3 (2018): 291-295.
降低血压，预防高血压恶化
Shimada, Morio, et al. "Anti-hypertensive effect of γ-aminobutyric acid (GABA)-rich Chlorella on high-normal blood pressure and borderline hypertension in placebo-controlled double blind study." Clinical and experimental hypertension 31.4 (2009): 342-354.
纾解心理疲劳
Kanehira, Tsutomu, et al. "Relieving occupational fatigue by consumption of a beverage containing γ-amino butyric acid." Journal of nutritional science and vitaminology 57.1 (2011): 9-15.
舒缓压力
Yoto, A., et al. "Oral intake of γ-aminobutyric acid affects mood and activities of central nervous system during stressed condition induced by mental tasks." Amino Acids 43.3 (2012): 1331-1337.
促进深层睡眠
Yamatsu, Atsushi, et al. "Effect of oral γ-aminobutyric acid (GABA) administration on sleep and its absorption in humans." Food science and biotechnology 25.2 (2016): 547-551.
改善焦虑症状，增加专注力
Abdou, Adham M., et al. "Relaxation and immunity enhancement effects of γ‐Aminobutyric acid (GABA) administration in humans." Biofactors 26.3 (2006): 201-208.
你知道吗？
研究发现，失眠者大脑中的GABA水平较常人低30%。这表示，失眠或睡眠素质欠佳可能是因为大脑中的GABA水平过低了。因此，临床上使用的镇静剂及安眠药（如Xanax,Valium）等，都是刺激大脑分泌更多的GABA来达到药效。
Winkelman, John W., et al. "Reduced brain GABA in primary insomnia: preliminary data from 4T proton magnetic resonance spectroscopy (1H-MRS)." Sleep 31.11 (2008): 1499-1506.
Q&A
服用安眠药有副作用，那么天然的GABA保健品呢？
虽然GABA保健品源自天然，但在剂量方面还是不可过量。GABA的一般保健的每日用量在250毫克至750毫克之间。临床发现，服用过量可能会出现呼吸急促、呼吸困难、嗜睡、颈部刺痛发痒等。建议咨询专业营养师或医师，依据自己的身体状态服用。