Catherine Jen, a nutrition professor and chair of Wayne State's Department of Nutrition and Food Science, said previous research has shown that about one-third of people's antioxidants come from coffee, because it is such a popular drink. "It's true about coffee, but it's better to get antioxidants from fruit and vegetables because you are not only getting antioxidants but other nutrients like dietary fiber and B-vitamins like folate," Jen said.