Fresh, steamed or frozen vegetables and fruits can be enjoyed by diabetics, but canned foods stored in syrup or sodium or prepared with butter, cheese or sauce should be avoided, according to WebMD. Starchy vegetables such as parsnips and corn without added fats, sugar and sodium are acceptable choices.
Food made from fruits, such as jam, preserves, applesauce and juice should be avoided entirely, according to WebMD. If diabetes is accompanied by high blood pressure or sodium levels, pickles and sauerkraut must also be avoided.
However, 100 percent fruit juice is still permitted, reports the American Diabetes Association, as is dried fruit, so long as portions are kept small. Fruit is high in carbohydrates so must be balanced carefully, with starches, whole grains and dairy reduced accordingly. While most fruits are low on the glycemic index with plenty of fiber, melons and pineapples are slightly higher and should be eaten with more caution.
Starchy vegetables are fine for diabetics to eat in moderation, states the American Diabetes Association. As a general rule of thumb, the lower the glycemic index and less processed a food is, the easier it is to incorporate into a diabetic meal plan. Potatoes are the exception and should only be eaten in very small portions. However, beans and other legumes are filled with fiber and protein, making them a healthy source of carbohydrates for diabetics.