The Warrior diet is the most extreme, as suggested by its name. WARRIORS don't need to eat. On this plan, you eat during a 4-hour window, and fast the other 20 hours. It's the most difficult to stick to, since you have to do it every day, and still designed for you to to eat your daily calories within that small window.
It's important on any IF plan to make sure that the calories you eat during the feeding times -- sounds like the zoo! -- don't exceed your daily recommended amount.
In general, common sense prevails; maintaining healthy meals during feeding times is still important, and daily calories can add up. So don't reward yourself for making it through a fast by gorging at an all-you-can-eat Chinese buffet.