Choice of diet is less important than maintaining any weight loss achieved As most adults in many developed countries are above a healthy weight,1 it is not surprising that the problem of obesity has led to considerable commercial interest in providing solutions. In the United States, the commercial weight loss market is estimated to be worth $72bn (£60bn; €66bn) annually.2 Commercialisation of dietary interventions is an important strategy for ensuring wider community access and sustainable delivery. However, the public need to know and understand what they are getting for their money and appreciate what they can expect in terms of health gain by following a popular diet. In a linked paper, Ge and colleagues (doi:10.1136/bmj.m696) report a novel network meta-analysis examining weight loss and changes in cardiovascular risk factors after six and 12 months of participants’ following various popular diets.3 Their review is extensive, synthesises outcomes from 121 trials, and focuses on the comparative effectiveness of the different macronutrient contents of these diets. The authors found, …

中文翻译：

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减肥与流行饮食比较

饮食选择并不比保持体重减轻重要，因为许多发达国家的大多数成年人都超过健康体重，1肥胖问题已引起人们对提供解决方案的商业兴趣不足为奇。在美国，商业减肥市场估计每年价值720亿美元（600亿英镑； 660亿欧元）。2饮食干预的商业化是确保更广泛的社区获得和可持续交付的重要战略。但是，公众需要了解并了解他们所赚的钱，并通过遵循大众饮食来欣赏他们对健康的期望。Ge和同事在链接论文中（doi：10.1136 / bmj。（M696）报告了一项新颖的网络荟萃分析，研究参与者服用各种流行饮食后6个月和12个月后体重减轻和心血管危险因素的变化。3他们的综述广泛，综合了121个试验的结果，并着重于这些饮食中不同的常量营养素含量。作者发现，…