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A new study finds that people who chew their food more take in fewer calories, which may help them control their weight, Reuters reported.

Chewing food 40 times instead of a typical 15 times caused study participants to eat nearly 12 percent fewer calories, according to results published in the American Journal of Clinical Nutrition.

Jie Li and colleagues from Harbin Medical University in China did the research.

The team found more chewing was associated with lower blood levels of ghrelin, a hormone that stimulates appetite, as well as higher levels of CCK, a hormone believed to reduce appetite. （點(diǎn)擊路透社網(wǎng)站查看原文）

嚼得多 吃得少

???????據(jù)路透社報(bào)道，一項(xiàng)新的研究發(fā)現(xiàn)人們吃東西時如果咀嚼的次數(shù)多，攝入的卡路里就少，這種方法可以幫助人們控制體重。

???????一般情況下人們咀嚼食物15下之后吞咽，但同樣的食物研究對象在咀嚼了40下之后再吞咽，他們攝入的卡路里數(shù)量就減少了12%。

???????這一研究是由哈爾濱醫(yī)科大學(xué)的李杰(音)和他的同事共同完成的，研究結(jié)果發(fā)表在《美國臨床營養(yǎng)學(xué)雜志》上。

???????李杰的團(tuán)隊(duì)發(fā)現(xiàn)多咀嚼會降低胃饑餓素的水平，同時還會提高膽囊收縮素的水平。胃饑餓素是一種提高食欲的激素而膽囊收縮素則可以降低食欲。

(China.org.cn August 4, 2011)