i have been using clen/t3 for 4 weeks now and have lost 17lbs, lost some b-fat and couple inches off waist. however i had to see my doc b/c my stomach protruded greatly above the navel. he told me that t-3 is irritating to the bowels causing diarrhea and bloating for people w/ ibs (irritable bowel syndrome). and of course i have it. so i will stay on the combo for a few more weeks and take bentyl, an anti-spasmatic to help control this.