Foodsel.com gives you three ways to look at your food.
1. Activities to burn off the calories contained in it
2. The energy, sugar and fat it has
3. The nutrients in the food.
For example, here are some exercises and their duration I could do to burn off a slice of Pizza Hut pizza, a visual breakdown of [...]

Men’s Health published a list of 18 tricks to teach your body.
I hadn’t heard of most of them, but I plan to try them out next time the occasion arises.