REcommendations from American Diabetes Association and Academy of Nutrition and Dietetics:
2 to 3 servings of nonstarchy vegetables
2 servings of fruits
6 servings of grains, beans, and starchy vegetables
2 servings of low-fat or fat-free milk
about 6 oz of lower fat meat or meat substitutes
small amounts of fat and sugar
So, the amount of sugar should be small How small? – It is depends of you!