My dad is diabetic, he doesn't eat noodles, etc. Can I eat this?

Diabetes patients usually want to reduce the intake of fine pasta, can eat more coarse grain food, starch food intake too much will be converted into sugar in the body caused by blood sugar rise, usually should follow the doctor's advice to take hypoglycemic drugs to control blood sugar, can eat some fruits with low sugar content, such as grapefruit, cherry and so on.