I have a casein intolerance, so I can't even have sour cream or butter. I do eat ghee, though, which is labeled "casein free." I also have a gluten intolerance and I'm very careful about avoiding even trace amounts.

Gone are the horrible painful cramps, diarrhea, constipation, heartburn and reflux. But the gas hangs on. All day long, my stomach gurgles and I have episodes of burping and farting. Sometimes the burping is so bad I can hardly breathe. I do intermittent fasting, which helps some things, but one surprise was that on the second day of a two-day fast, the gas is still just as bad - sometimes worse! I keep wondering what's even in there??