中国成年人超重肥胖影响因素meta分析

按食品加工程度和目的进行分类（NOVA），超加工食品（UPF）是指经过一系列复杂的工业加工制作，添加多种食品添加剂，普遍含有高糖、高盐、高脂肪、低蛋白、低膳食纤维、低微量营养素的一组方便即食、可口美味的食品。近年来，全球UPF消费量迅速增加，同时，超重和肥胖的流行率也在不断上升。研究表明UPF摄入与成人超重和肥胖关系密切，但结论尚存争议。本文针对UPF摄入与成人超重和肥胖关系的流行病学研究进展进行综述，旨在为更加深入的相关研究提供参考。

Ultra-processed food and adverse health outcomes

According to the NOVA classification system based on the extent and purpose of food processing, ultra-processed foods (UPF), modified by a series of complex industrial processing, refer to a group of convenient, ready-to-eat, hyper-palatable foods that add varieties of food additives and generally contain high dose of sugar, salt and fat, and low dose of protein, dietary fiber and micronutrients. In recent years, the global consumption of UPF has increased rapidly; at the same time, the prevalence of overweight and obesity is also growing continuously. Most studies have shown that the increased UPF intake is closely related to adult overweight and obesity; however, the results remain controversial. The purpose of this study is to review the epidemiological studies on the relationship between UPF intake and adult overweight and obesity for providing reference for further research.