I only feed half raw (for dinner) but I do try to provide decent variety. I don't get anything exotic like emu or buffalo or even rabbit, but I do get the basic domestics like chicken/pork/beef/fish/turkey. Lamb, turkey and canned sardines or tripe cause pretty horrible gas and I have backed off lam entirely. I do occasionally feed sardines and turken necks when I find them on sale but they, too, are pretty gas inducing. i want to maintain variety so I suck it up (well, actually, hold my breath) - but is the pain to my nose worth the variety for my dog? I wonder, too, if it is like eating beans or canteloupe (for me) re having gas pains << don't want to knowingly cause Ruby gas pains tho she has never acted like she has any..... Pork and chicken are fine - I think beef, now, is causing some gas after recent a hamburger + beef kidney meal.