Research recommendation(s) from an individual piece of guidance Guidance: Single-anastomosis duodeno-ileal bypass with sleeve gastrectomy for treating morbid obesity Date issued: 23 November 2016 Research recommendations coming out of this guidance NICE encourages further research into single-anastomosis duodeno-ileal bypass with sleeve gastrectomy (SADI-S) for treating morbid obesity, particularly research examining long-term outcomes. NICE may update the guidance on publication of further evidence.