Interesting. I realized a few days ago that I don't really pass gas much anymore. For almost 3 yrs now the only dairy I've had has been on the few cheeseburgers, sandwiches, and salads I've had. Anytime I consumed dairy and I passed the most foul gas. I think maybe my body got backed up and sewage/sulfur/onion like odors started seeping from me. Also noticed that the more bowel movements I had, the less my gas smelled. I don't think protein makes me smell any worse. Onions and garlic definitely do. I'm still trying to figure out a good diet.