"Stop eating before you're full"
Just as you shouldn't eat unless you're truly hungry, you should STOP eating when your hunger goes away. Makes perfect sense, right? So pay attention while you're eating and put down the fork when are no longer hungry. Not being hungry and being full are two different things, and if you continue to eat until you're full, you are probably eating more than you need to!
All the tips given for the 28 Days of Real Food Challenge were compiled from "Food Rules", by Michael Pollan.