Try to keep carbohydrates(starches) more complex instead of
simple, for instance wheat bread instead of
white, brown rice instead of
white. Vegetables that are non-starchy, such as carrots, lettuce, spinach, squash etc are very good. Keep fruits in the diet but watch for rises in blood sugars. Drink lots of water if other medical issues allow(if your mother has heart issues she may not be able to drink lots of water).