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Abstract Bariatric surgery provides substantial weight loss and metabolic improvements in severe obesity. RYGB, DS, OAGB, and SADI-S share a mechanism of diverting nutrient flow away from the duodenum and proximal jejunum, altering gut hormone signalling and incretin responses. However, bypass length is guided largely by surgeon experience and retrospective evidence, limiting precision due to variability in individual small-bowel anatomy.
As a journalist, you can create a free Muck Rack account to customize your profile, list your contact preferences, and upload a portfolio of your best work.
