"They were eating more healthy foods," she said. "Things like nuts, whole grains, green vegetables and legumes."

“他们吃得更健康，”她说。“比如坚果、全谷物、绿色蔬菜和豆类之类东西。”

For many people, dieting can be an unpleasant experience. But the researchers found that for many of the subjects, caloric restriction was surprisingly not unbearable. While more people dropped out of the diet group than the control group, the study overall had a high retention rate. The researchers looked at measures of quality of life and discovered that the calorie-restricted group reported better sleep, increased energy and improved mood. Compared to the control group, they did not have significant increases in hunger or food cravings either, Dr. Roberts said.

对许多人来说，节食可能是一种不愉快的经历。但研究人员发现，对许多受试者来说，令他们惊讶的是，热量限制不是无法忍受的。虽然退出节食组的人比对照组多，但总的来说，这项研究的受试者保留率很高。研究人员研究了生活质量的衡量标准，发现限制热量摄入的那组人睡眠更好、精力更充沛、情绪也更好。罗伯茨说，与对照组相比，他们的饥饿感和对食物的渴望也没有明显增加。

"There was nothing we measured that indicated that they weren't doing well," she said.

“我们没有测量到任何表明他们情况不好的东西，”她说。

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