A 2017 review of 201 coffee studies and 17 clinical trials, published in The BMJ, found coffee was “associated with a lower risk of several cancers, including prostate, endometrial, skin and liver cancer, as well as type 2 diabetes, gallstones, and gout.” Above that, the researchers discovered positive effects on brain health: Coffee consumption was linked to a lower risk of Parkinson’s disease, depression, and Alzheimer’s disease.
A separate study published in the journal JAMA Internal Medicine last year, which relied on the same dataset used by Fung’s team, “suggests a lower risk of death was associated with drinking more coffee, including among coffee drinkers who have eight or more cups per day.”