I was told that too about the closed fist sizing, but usually if there is a lunch portion of a food I get it. It is always (as i've seen) 1/2 the size of the dinner plate and even then I end up taking some home. If there isn't a lunch portion, then I eat about 1/3 and take the rest home. It hurts my brain to think about the fact that most people eat full dinner plates at restaurant, while also drinking soda or alcohol, while also usually getting a dessert.