As meat is digested in the intestinal tract, gut microbes produce chemicals that increase the risk for heart disease, according to a study published in Arteriosclerosis, Thrombosis, and Vascular Biology (ATVB). Research participants increased their risk for heart disease by 22% for every serving of meat consumed per day.
Wang M, Wang Z, Lee Y, et al. Dietary meat, trimethylamine n-oxide-related metabolites, and incident cardiovascular disease among older adults: the Cardiovascular Health Study. Arterioscler Thromb Vasc Biol. Published online August 1, 2022. doi:10.1161/ATVBAHA.121.316533.