lots of new followers and lots of people having this question! what surgery did I have? I had the modified duodenal switch, aka SADI or SIPS. Basically it’s a sleeve with a type of bypass. I have restriction and malabsorption for LIFE. This surgery requires a lifelong commitment to vitamins, it is an absolute must due to our malabsorption. This surgery also has NO med restrictions, which is HUGE. The MDS was hands down the best surgery for myself and my needs. Make sure you do your research and