Observational studies are compatible with an association between saturated and trans fats and cardiovascular disease

Commentary on : de Souza RJ, Mente A, Maroleanu A, et al. Intake of saturated and trans unsaturated fatty acids and risk of all-cause mortality, cardiovascular disease, and type 2 diabetes: systematic review and meta-analysis of observational studies. BMJ 2015;351:h3978. What is the relationship between saturated or trans fats in our food and cardiovascular risk? To find out we must examine the totality of interventional and observational...