rice, noodle 同面bau will transfer become glucose gar. SO, do not eat too much rice, noddle and bread, just eat what you need (do not think you have to eat 2 portions because you are now 2個人).
instead, eat more quality than more quantity, e.g. eat food with protein (egg, meat, beef...), vegetables, fruits, etc more balanced diet. Avoid too salty, too sweet, high fat food...