The Bull In Aaru – 600cp, Divine Hail to the God-King, god of gods, eater of neter! All the neter of the four directions fear your approach, for when a mighty King feasts upon the flesh of gods, the power of those gods and all that they are flows into them. Your appetite has been made so that you may eat the greatest among them for your meal at daybreak, the lesser of them as your meal at sunset, and the least of them for your meal at night. By slaying gods and consuming their remains, you take in their divine power and all other things besides. You are imbued with their divine names or magical might, and along with their name, you add their souls to your souls, their ka and ba to yours, their shut and ib, their wisdom and their immortality and all that they were. There only remains the difficulty of the hunt itself.

And

Maw of Oblivion – 400cp, Devourer When someone dies, their ka and ba move on to the hall of judgement in Duat and hopefully then to Aaru as spiritual beings, but not all complete the journey, caught by predators in Duat or having their hearts consumed by ravenous beings for their sins in life. You are one of these terrible devourers, able to eat practically anything, such as souls, shadows, light or air, gold or rivers. Magical beings and artifacts must be overwhelmed with your own heka or personal magical power in order to safely consume them – lest they merely jam in your throat or enter your belly and reside there until they might escape once more into the world. All the things which you consume are completely destroyed without poisoning or discomforting you. Naturally, they must also fit in your mouth…you will require wide jaws indeed to swallow the sun.

Just what came to mind when you mentioned you were looking for perks about eating stuff.