Alcohol creates the odor instantly.
Coffee, and sugar also make it happen pretty quick. I have tried cleanses, probiotics, food enzymes, L Glutamine, Green drinks, etc. Recently Ive been focusing on intestinal candida and I've been taking oregano oil followed by probiotics for a week now. About 6 months ago I got a colonoscopy and edoscopy done for pain in my lower left side of colon. He found lots of internal hemroids and cut out some benign polyps.