The currently popular diet of intermittent fasting that restricts eating to eight hours per day, separated by 16 hours of fasting, is not effective on its own as a means of either losing weight or for improving key metabolic health markers, according to a new study led by researchers at UC San Francisco.

目前流行一种间歇性禁食，将每天的饮食时间限制在八小时以内，以保证禁食能间隔16小时。但根据加州大学旧金山分校研究人员领导的一项新研究表示，单靠它来减肥或改善关键代谢健康指标其实并没有什么效果。

While time-restricted feeding has been shown to prevent weight gain in mice on a high-fat diet and reduces weight and metabolic outcomes in already obese mice, most of the reported benefits of such fasting in humans has had limited scientific testing.

虽然有证据表明，限时用餐可以防止高脂肪饮食的老鼠体重增加，并可以减轻已经肥胖的老鼠的体重和代谢结果，但是大部分已被报道的，有关人类禁食的益处，其科学试验证明都是有限的。

This study, which included 116 men and women with a body mass index (BMI) of 27 to 46, found that people who were randomly assigned to only eat during an eight-hour period each day lost 2 lbs. (0.94 kg) on average over the 12-week period, while those with consistent meal timing lost an average of 1.5 lbs. (0.68 kg).

这项研究包括了116名体重指数(BMI)在27到46之间的男性和女性。研究发现，那些被随机分配在每天8小时内用餐的人减掉了2磅。(0.94公斤)，而那些定时用餐的人平均减掉了1.5磅。(0.68公斤)。

The study found no significant difference between the two groups in total weight loss or in other markers, such as fat mass, lean mass, fasting insulin or glucose, HbA1C levels, energy intake, or total or resting energy expenditure.  

研究发现，两组患者在总减重或其他指标(如脂肪量、瘦量、空腹胰岛素或葡萄糖、糖化血红蛋白水平、能量摄入、总能量消耗或静息能量消耗)方面没有显著差异。