原来认为吃红肉和加工肉影响健康，但是研究人员进行了四项系统性综述，重点是随机对照试验和观察研究，观察红肉和加工肉类消费对心脏代谢和癌症后果的影响。研究者没有发现肉类消费与心脏病、糖尿病或癌症风险之间有统计学意义或重要的关联。建议大多数成年人应该继续食用目前的红肉和加工肉类。

New group releases findings on red meat consumption, and experts are not happy

No need to cut down red and processed meat, study says

https://www.sciencedaily.com/releases/2019/09/190930215122.htm

Journal Reference:

1. Bradley C. Johnston et al. Clinical Guidelines |1 October 2019 Unprocessed Red Meat and Processed Meat Consumption: Dietary Guideline Recommendations From the Nutritional Recommendations (NutriRECS) Consortium. Annals of Intenal Medicine, 2019 DOI: 10.7326/M19-1621

2.