Yes. There have been people on here who spoke about the apple/ flax seed thing for cleaning the colon and keping the fecal odor/ irregularity away.
Raw foods also help. Try doing a google search for raw vegans or vegetarians and Body Odor . Most info. on those sites say people who do these diets decrease their Body Odor almost to nothing. These diets are also high in fiber which helps if your odor is "fecal". Strawberries (urban myth)are supposed to make you smell and "taste" better, if you know what I mean. Look up fruitarian diets as well. Good luck.