So we want to carry food for emergencies. If we know we're getting low blood sugars, we need to have something on hand to keep from passing out. Choose a variety of foods, from all food groups, not just one. I know there's a diet out there that just focuses on high protein, and eliminates most carbohydrate foods. But that's not a good diet, because it's not balanced.
Portion sizes are very important.
The first food model I have is a cup of spaghetti and meatballs. If you pass that around, you'll see one cup of spaghetti and meatballs is actually two servings of spaghetti. A lot of the apples we get in the grocery store are huge, and would be at least two servings. My apple is actually about the size of a tennis ball, which is a serving size. What we've got next is a handful of popcorn.