There are differing philosophies on what is the BEST diet but below is a guideline with some general principles. However, this may vary depending on the person's age, sex, activity level, current weight and body style. More obese individuals may need more calories initially until their weight is less. This is because it takes more calories to maintain a larger body and a 1600 calorie diet for them may promote weight loss that is too fast to be healthy. Men have more muscle mass in general and therefore may require more calories.
Muscle burns more calories per hour than fat.
Also, people whose activity level is low will have less daily caloric needs. In general, lower carbohydrate intake is associated with lower sugar levels in the blood. This problem can be improved by substituting monounsaturated and polyunsaturated fats for saturated fats. Most people with diabetes find that it is quite helpful to sit down with a dietician or nutritionist for a consult about what is the best diet for them and how many daily calories they need. It is quite important for diabetics to understand the principles of carbohydrate counting and how to help control blood sugar levels through proper diet.