The Grapefruit Diet, also called the Hollywood Diet, dates back to the 1930s and has a host ofcelebrity fans including singer Kylie Minogue. It involves having grapefruit or grapefruit juicewith every meal while cutting back on calories。

葡萄柚减脂法也称好莱坞减脂法，最早可追溯到20世纪40年代，受到歌手凯莉·米洛等众多好莱坞明星的热烈追捧。那时人们便开始通过每餐食用葡萄柚或饮用西柚汁减低卡路里。

The researchers found that when the mice were fed fatty food for three months, those givengrapefruit juice to drink gained up to 18 per cent less weight than those given water。

研究人员发现同样食用了三个月油脂食物的老鼠，与只喝水的老鼠相比，喝过西柚汁的老鼠的增重仅为前者的82%。

They also had lower blood sugar and insulin levels – despite eating the same number of caloriesand doing the same amount of exercise as the mice who drank water. In fact, grapefruit juicewas as good at controlling insulin as the widely used diabetes drug metformin, the journalPLOS ONE reports。

不仅如此，后者的血糖指数和胰岛素指标也相对较低，尽管其卡路里摄入量和运动量与前者没什么区别。据科学公共图书杂志报道，实际上，西柚汁在控制胰岛素方面的作用也不亚于广泛使用的糖尿病药物二甲双胍。

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