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減肥自然療法(3)

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減肥自然療法

5-羥色胺（5-HTP）：補(bǔ)充5-羥色胺可以影響血清素的水平。因?yàn)檠逅乇徽J(rèn)為在體重調(diào)節(jié)中起著重要的作用，因此5-羥色胺被認(rèn)為是一種有潛力的減肥藥而被深入研究。在一項(xiàng)雙盲交叉研究中，研究員發(fā)現(xiàn)盡管19名參加者沒有自覺的減少飲食，然而服用5-羥色胺（每天用量為8mg/kg 體重）卻降低了飲食的需求。安慰劑組平均每天攝入2300卡，而5-羥色胺組每天只攝入了1800卡。5-羥色胺的服用似乎明顯加強(qiáng)了餐后的飽脹感。五周后，服用5-羥色胺的女性毫不費(fèi)力的減輕了1.4kg。其他小規(guī)模的雙盲研究也得出了相同的結(jié)果。比如，一項(xiàng)雙盲研究觀察了20名超重的成年糖尿病患者，結(jié)果發(fā)現(xiàn)未進(jìn)行飲食控制而服用5-羥色胺（每天750mg）的患者在兩周的時間里體重減輕了大約2kg。5-羥色胺的這個益處仍需要更大規(guī)模的試驗(yàn)來證實(shí)。

5-HTP

咖啡因 (Caffeine) 和麻黃堿 (Ephedrine)：咖啡因和麻黃堿（從一種叫做麻黃的草藥中提?。┦侵袠猩窠?jīng)系統(tǒng)興奮藥。大量的證據(jù)提示麻黃堿-咖啡因復(fù)合物能夠比較有效的減低體重。但其確切的機(jī)制尚未明確?？Х纫蚰軌蛞鹬镜姆纸獠⒋龠M(jìn)新陳代謝。麻黃堿可以抑制食欲，增加能量消耗。兩者似乎能夠產(chǎn)生協(xié)同作用，而食欲的抑制很可能是其中最重要的因素。注意事項(xiàng)：麻黃堿可引起嚴(yán)重的醫(yī)療風(fēng)險，必須在醫(yī)生的監(jiān)督下使用。在美國，含有麻黃堿的產(chǎn)品是禁止銷售的。

甘油二脂 (Diacylglycerol)：甘油二脂是一種特殊類型的脂肪，在降低體重方面可能有前途。比如在一項(xiàng)歷時24周的雙盲研究中，131名超重的男性和女性被給予了減肥飲食，飲食中包括了含有甘油二脂或正常脂肪的輔助食物。結(jié)果表明食用甘油二脂的成員體重減輕得更多。甘油二脂看來是安全的。

參考文獻(xiàn)

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