Perhaps try easing off on the starchy carbs: White rice and pasta, flour products like White bread and pastry, mashed potato and boiled old potatos. You need to test to see how things affect you of course, but I have a few boiled new potatoes, burgen soya and linseed bread, a bit of whole wheat spaghetti, basmati rice sometimes - in other words, the low GI carbs. For snacks, you can do worse than a bag of mixed nuts, but mind the cashews. I make my own low carb ice cream which is a good snack treat