Recently, a research article was published in the top journal BMJ, which aims to evaluate and quantify the potential dose-response relationship between the intake of total, animal and plant protein and the risk of death from all causes, cardiovascular diseases and cancer. Researchers conducted a systematic review and meta-analysis of prospective cohort studies. As of December 2019, researchers have searched PubMed, Scopus and ISI Web of Science and the references of related articles retrieved, and selected to report the estimated risk of all-cause, cardiovascular disease and cancer mortality for adults over 18 Prospective cohort study. The random effects model was used to calculate the combined effect size and 95% confidence interval of the highest and lowest protein intake, and included the difference between studies. The researchers performed linear and non-linear dose-response analysis to assess the dose-response relationship between protein intake and mortality. https://eu.echemi.com/info/research-plant-protein-replacing-animal-protein-may-extend-lifespan_111189.html