You thought coffee was bad for you? Actually, it seems to protect against all sorts of ills, from diabetes to liver cancer
Other charges against coffee have also failed to stick. Studies examining the relationship between caffeine and fibrocystic breasts have failed to establish that there is one--and experts say there's no evidence coffee causes breast cancer. Any connection to pancreatic cancer has been found to be weak to nonexistent. Links to osteoporosis--based on the observation that drinkers excrete more calcium in their urine--are also tentative at best. And getting the recommended daily allotment of calcium seems to cancel out any increased risk, says Bess Dawson-Hughes, director of the bone metabolism lab at Tufts University.
As for the oft-repeated warning that coffee dehydrates: It, too, is a myth. Like any fluid, coffee may send its fans to the bathroom frequently. But a major report issued last year by the U.S. government's Institute of Medicine concludes that the beverage quenches thirst as effectively as water and does not deplete body fluids.
Is it addictive? Indeed, quitting cold turkey can cause such withdrawal symptoms as headaches or grumpiness--assuming you can withdraw. Now, you don't need to.