Some very interesting research has just landed from the American College of Surgeons published in their journal.
The graphic below distills the basic research findings.
RYGB : Roux-en-Y gastric bypass
SG: Sleeve Gastrectomy
Conclusions
To quote the original article:
"T2DM remission rates after RYGB are maintained despite WR, arguing for a concurrent weight-loss independent metabolic benefit likely facilitated by bypassing the proximal small-intestine."
The original research article can be found here.