You are right on with Pooman - male or female, yeast will grow inside the GI tract if fed with what he is eating. I am cleansing now and it is making a world of difference. I woudl also suggest colonic hydrotherapy to help cleanse the toxins from the system daily while cleansing. This method has made me feel so much better. I have had doctors recommend the shakes, and the laxatives but they only treat the surface and never fully allow the entire body to rid itself of the toxins (including the bad bacteria - candida)- and can take years to work if the protocol is followed diligently, while colonics with a cleanse, starving the yeast (no sugars, carbs etc) are necessary to allow the good bacteria to flourish. It's not easy but worth it, and I am sure that it will help the foul smell.