Eric Ravussin of Louisiana State University in Baton Rouge, US, and colleagues conducted a trial with 48 volunteers randomly assigned to maintain their weight or reduce their calorie intake.

• 美国路易斯安娜州立大学的Eric Ravussin和他的同事在48位自愿者身上进行试验,随机抽取这些自愿者,让他们分别保持现有体重或减少卡路里摄入。