I’m 6 years post a mini gastric bypass and still haven’t found a solution to my very very embarrassing problem. I suffer from foul smelling stools that can be runny sometimes. It causes me a great deal of embarrassment and distress.. I can’t use toilets anywhere outside my own toilet in my house.. and no one can use the toilet after me because the smell is very foul and lingers for a very long time.. I also suffer from a lot of smelly farts that usually start around evening time (hardly anything in the morning) ... no matter what I eat or what I eliminate from my diet it doesn’t cause a difference.. Does anyone seem to have a solution for this or managed to understand why? Please don’t tell me it’s my diet because I’ve tried changing it an eliminating so many things and nothing works.

I went to my Bariatric doctor a couple of months ago as I had been suffering some weight regain and I was worried about the direction my body was going after having had the sleeve Dec 2018 and then Roux Y Bypass Oct 2020. She put me on Metformin and Phentermine to help counteract the effects of some of my other medication and menopause. I too had been experiencing the worst smelling stools imaginable and felt that I could never travel. The Metformin had the best side effect and turned that around for me and for the first time since having the surgeries, I had normal smelling stools! Game changer!! I have no blood sugar issues and am only taking the Metformin 500 mg twice a day for weight management reasons but it is controlling the smell of my stools! So I had to share as I had too like the rest of you been suffering since 2018 with the same issues up until a couple of months ago....

OP is describing steatorrhea. As for the smelly stools/flatulence, it's due to the very powerful nature of the procedure itself. There is no cure. I too had MGB and suffered from everything described with the addition of significant malabsorption. I had a conversion to RNY. Best thing I ever did. Smells are cured. I'm slowly gaining weight.