Light roast coffee retains more chlorogenic acid, a compound that improves glucose metabolism and may reduce sugar cravings. The real health difference comes down to what you add to it: skip the sugar and sweeteners to get the actual benefits.
What's healthier for you, a light roast or a dark roast? Answer: I think a light roast is healthier. Unroasted coffee, also called green coffee, is rich in chlorogenic acid. It can improve glucose metabolism and actually maybe even reduce sugar intake. Lightly roasted coffee contains more of this compound and may have a health edge. But above the light versus dark roast debate, I think having your coffee without added sugar and without artificial sweeteners is the most important thing to optimizing the net health benefits of your coffee.
