Blueberries or grapes: Which fruit is better for blood sugar control? Both blueberries and grapes contain natural sugar, vitamins and beneficial plant compounds, but they affect blood glucose in a different way. According to dietitians, blueberries have a slight advantage because they contain more fiber and fewer carbohydrates per cup than grapes.
But you can also make grapes a part of your healthy diet provided you eat them in right portion and pair them with protein, healthy fats or other fiber-rich foods. Dieticians have shared their views about how blueberries and sugar affect blood sugar and how to eat them for better glucose control.
