I like Joel Fuhrman's equation: healthiness = nutrient / calories. The more nutrients per calorie a food has, the healthier it is for you.
Nutrient dense food naturally has fewer calories by volume -- which means you can eat a lot of it, feel stuffed, and still end up with fewer calories.
I was impressed with ChickenTuna's lifestyle transformation, from the sickly thin girl to the ripped muscley figure. (Translation: After drooling over the pictures for an hour, I noticed there were actually words on the page...)
Quoting: fauxvirgo
My hubby says she needs to pull her panties up
Translation: "I was looking. Please don't hit me."
See Rule #1.