Like a seesaw, the information on coffee and health goes up and down. There are many studies that show the health benefits of coffee. Research into diabetes, Parkinson's disease and some forms of cancer show that coffee consumption has health benefits. Coffee drinkers in California may soon see a warning at their local shop advising them that their daily dose of caffeine could be putting them at risk for cancer.
When coffee beans are roasted at high temperatures, a chemical compound called acrylamide forms. Acrylamide has been linked to cancer in some rodent studies, but many other studies have found no link between acrylamide in food and cancer in humans. In 2016, the World Health Organization actually took coffee off the list of possible carcinogens. Acrylamide forms on bread, potatoes, crackers and some fried foods as well. While California may consider coffee a hazard and a cancer risk, most experts believe there is no reason to worry about small amounts of acrylamide in food.