5 day pouch

Has anyone tried the 5 day pouch test?  If so did it work?  Thanks it's been 8 years for me and can't seem to get back on track.  I've gained back 30 lbs after having gastric bypass.

I did  The first 3 days I felt like I was starving last 2 were ok and I did lose 5 lbs.But it caused me to have a terrible bathroom experience that made me rip and bleed . So this is not a option for me. once I started back on regular meals that 5 lbs came back so I wasn't very impressed as I was making sure I was eating what I was suppose being that im almost 6 years out. I know the struggle. Good luck my mom does it and works great for her. Probably depends on the person.