Really depends who you ask. For what it's worth I use the large meta study on cardiovascular health to establish guidelines, and it seems like 3-5 cups a day is

Really depends who you ask. For what it's worth I use the large meta study on cardiovascular health to establish guidelines, and it seems like 3-5 cups a day is not just fine but "optimal" under this study. [1] [1] https://www.ahajournals.org/doi/full/10.1161/circulationaha.113.005925 https://www.ahajournals.org/doi/full/10.1161/circulationaha....