Spinx Cookie is a simple water/food managing addon Inspired by Buffet but completely rewritten based on the much simpler core from Daily Items. It edits macros on the fly (out of combat) to provide you with the best food, water, potions, stones, and bandages. Spinx Cookie will provide two macros, "AutoHP" and "AutoMP". Drop these on your action bar like any other macro, The macros will update as needed to provide you with food and drink out of combat, potions and stones in combat, and bandages on shift (HP macro only, of course). It will always pick the smaller stack if equal-strength items are found. 

This is not only up to date, but works in both retail and classic. Even better, as it reads the data from the tooltips it won't fail when the next stat squish comes, or new foods are added.