Pay careful attention these food types as they are easily digested and quickly enter the bloodstream as sugar;
carbohydrate foods, starches like potatoes,
foods made with flour [breads, crackers], white rice, and dairy milk. I'm not saying he cannot eat them but to pay attention to portion sizes, limit intake and/or avoid intake. Instead focus on whole grains, vegies, fish and poultry and lean meats. Fruits contain fructose, fruit sugar. To some diabetics fruits are the same as table sugar.