Mind you this is an umbrella review, analyzing the results of nearly 50 studies published in the last 20 years. As per the study[1] methodology: "PubMed and Sco

Mind you this is an umbrella review, analyzing the results of nearly 50 studies published in the last 20 years. As per the study[1] methodology: "PubMed and Scopus were searched for reviews, systematic reviews, and meta-analyses published from 1st January 2000 to 31st June 2023, written in English and involving human subjects of all ages" It's a comprehensive (more or less) review of the relevant literature than an one-off study. They acknowledge some limitations: "A key limitation is represented by the high heterogeneity of the study population in terms of sample size, demography, geographical origin, dietary patterns, and other lifestyle confounders" [1] https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0300711 https://journals.plos.org/plosone/article?id=10.1371/journal...