Highly Nutritious Healthy Coffee Free-Radical Fighter Our coffee is full of antioxidants. One cup has 200-550 milligrams of antioxidants, including chlorogenic acid, a compound that helps your body process fat and sugar. Antioxidants lower inflammation, reduce your risk of chronic disease, and stabilize free radicals. Robusta and Arabica beans have similar amounts of antioxidants after being roasted. Light roast has more than dark.