Wolfram S. (2007). Effects of green tea and EGCG on cardiovascular and metabolic health. Journal of the American College of Nutrition, 26(4), 373S–388S. https://doi.org/10.1080/07315724.2007.10719626
This review summarizes several studies in which consumption of green tea showed beneficial effects for cardiovascular and metabolic health. These benefits were especially prominent when 5 cups of green tea or more, or 200-300 mg ECGC were consumed per day. The article also mentions intervention studies that were performed with ECGC. ECGC is the most abundant catechin in green tea to which most of the green tea benefits are attributed to. The interventions of ECGC performed with humans are focused on endothelial function, oxidative damage, hyperlipidemia, overweight and obesity, energy expenditure and type 2 diabetes mellitus. Animal studies with ECGC intervention focused on atherosclerosis, myocardial injury, models of hypertension, nutrient absorption, streptozotocin- or alloxan-induced diabetes models, insulin sensitivity and obesity models. More research should be performed to combine the different experiments into one long-term study and to validate the results.