How many calories a day should a diabetic eat?

As with so many other things with diabetes, you'll have to experiment to a certain degree. Your doctor will probably tell you the number of calories he or she thinks you need in order to lose or gain weight or stay the same as you are. Your doctor can't know, however, how active you are and how efficiently your body burns food and will have to raise or lower the calories if your weight doesn't go in the direction it needs to.