If you want to live forever, that is.
Coffee drinkers have healthier gut microbiotas. "Higher caffeine consumption was associated with increased richness and evenness of the mucosa-associated gut microbiota, and higher relative abundance of anti-inflammatory bacteria, such as Faecalibacterium and Roseburia and lower levels of potentially harmful Erysipelatoclostridium."
Harvard researchers say this is the exact amount of coffee you should drink to stay healthy. “Our findings confirm those of previous studies that showed that higher coffee consumption was associated with lower Type 2 Diabetes risk,” explained the study’s lead author, Shilpa Bhupathiraju. “Most importantly, they provide new evidence that changes in coffee consumption habit can affect Type 2 Diabetes risk in a relatively short period of time.” The Harvard paper motions that drinking between one and three cups of coffee a day over the course of four years decreases one’s risk of developing diabetesby 11%.
Just two cups of filtered coffee a day could slash the risk of type 2 diabetes by 60%. Researchers found those who drank “filtered coffee” were less likely to develop diabetes over the next seven years. The same was not true for the boiled version of the pick-me-up. Coffee contains compounds that have been shown to affect the break down of fat, as well as targeting inflammation. It can also be rich in the molecule diterpene, which negatively influences the metabolism of sugar. This is thought to get caught in filters, preventing it entering coffee prepared this way.