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种添加剂能让你戒了对高热量食物的欲望,你要试试吗?

2016-07-05 佚名 来宝网

来自英国的科学家发明了一种添加剂,这种添加剂能切断你对高热量食物的渴望,比如披萨和甜甜圈,但是却丝毫不影响你对健康食物的胃口。这种添加剂名为菊粉-丙酸酯(inulin-propionate ester),研究者召集了20名志愿者进行测试,结果发现,这种添加剂不仅让人对高热量食物的欲望降低,还让这些人的食量变小。现在这项研究还处于早期试验阶段,所以研究者对这项结果还不是感到太振奋。这种物质由肠道细菌

来自英国的科学家发明了一种添加剂,这种添加剂能切断你对高热量食物的渴望,比如披萨和甜甜圈,但是却丝毫不影响你对健康食物的胃口。

这种添加剂名为菊粉-丙酸酯(inulin-propionate ester),研究者召集了20名志愿者进行测试,结果发现,这种添加剂不仅让人对高热量食物的欲望降低,还让这些人的食量变小。

现在这项研究还处于早期试验阶段,所以研究者对这项结果还不是感到太振奋。这种物质由肠道细菌产生,当你摄入的食物足够多时,肠道细菌会分泌这种物质,告诉你的大脑你已经吃饱了。

研究小组发现,如果人食用名为菊粉的食物会增加肠道中这种物质的产量,作用于你的大脑,让你停止吃东西。

研究者对菊粉进行了改造,产生了这种名为菊粉-丙酸酯的物质,这种物质可以促使肠道细菌产生之前的2.5倍的丙酸酯。

这种物质是如何影响人的胃口呢?研究者招募了20名志愿者,让这些志愿者喝下了含10克菊粉-丙酸酯的奶昔。之后研究者给这些志愿者以及对照组展示各种高热量或低热量的食物,比如巧克力和饼干、沙拉和鱼,并在MRI下观察大脑的活动情况。

研究显示,那些服用了菊粉-丙酸酯的志愿者在看到高热量食物后,大脑的奖励区域(大脑中的阿肯柏氏核和尾状壳核)的活跃程度低于对照组。

这些区域与大脑对食物的欲望有关,所以,这些结果显示,服用了菊粉-丙酸酯的志愿者对高热量的食物的欲望降低了。这个结果与志愿者表述的对高热量食物没有之前那么着迷的结果一致。

之后,研究者给美味试验参与者一碗有番茄汁的披萨,并告知他们想吃多少就吃多少,结果显示,服用了菊粉-丙酸酯的人食用量比对照组低10%。

由此可见,这种添加剂不仅能让人对高热量食物欲望下降,而且食量也变小。

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    2016-07-07 yhy100201
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