I dunno if that theory is correct.I know they studied people and some people have more methane procucing bacteria and some people have more hydrogen sulphide producing bacteria (hydrogen sulphide smell like rotting eggs, or volcanos, which some of us at least sympathize with--pressure builds and builds until eruptions occur). Everyone has bacteria in their colon BTW. I'm not sure if anyone has a really good explaination of why any individual has what. Some foods also contribute to odiferous gasses (at least part of the problem with hog odors is from assorted fatty acid breakdown products and if they change the food around the hogs**t smells better.)FWIW chorophyll tablets may help (they give 'em to the oldsters in nursing homes for the odor thang). And some places on the web sell charcoal pads to sit on, and I think there are some that you can wear as well.You may want to try tracking the smell and your diet. There may be somethings that make it worse (I've got a list of suspect foods, but not on me. I'll post later).K.[This message has been edited by kmottus (edited 01-03-2001).]