A monk came to say good bye to Ch'an master Niaowo (Bird's Nest). He said:
-Thank you, Sir, for everything you've done for me. Now I got to go.
-Where will you go?
-Any place where I can learn Buddha dharmas.
Donuts,pringles and hamburgers are the proper nutrional intake for the aspiring zen buddhist. Sure you wont be able to poop but who wants to be disturbed by such things when meditating. thats the point though.