Weight management: research and evidence

Read summaries of published research, including findings, limitations and questions to discuss with a qualified clinician. Evidence from a study does not establish individual suitability. Covered in this category: Sleeve, bypass, gastric balloons and endoscopic options.

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Weight-management research W1

Enhanced recovery after sleeve gastrectomy: what the evidence shows

Randomised sleeve-gastrectomy trials suggest that enhanced recovery pathways can shorten hospital time and improve some early symptoms. The protocols differ, discharge readiness is not the same as actual discharge, and small trials cannot rule out uncommon complications. Here is how to interpret the evidence and what to ask your care team.

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Weight-management research W2

Intragastric balloons: benefits, safety and follow-up

A research-led guide to endoscopic Medsil and Stella balloons and the swallowable Allurion system, covering outcomes, safety, removal and follow-up.

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Weight-management research W3

Endoscopic sleeve gastroplasty: choosing treatment and planning recovery

Endoscopic sleeve gastroplasty reshapes the stomach with internal sutures; it is not surgical sleeve gastrectomy or a gastric balloon. Learn how trials measured weight loss, what selection and recovery evidence can tell you, and which questions to ask a clinical team.

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Weight-management research W5

Nutrition after bariatric surgery: long-term monitoring and follow-up

Sleeve gastrectomy and gastric bypass can both affect nutrient intake and status, but through partly different pathways. Ten-year trial follow-up, UK primary-care records and professional guidance show why lifelong monitoring matters—and what the evidence cannot tell an individual patient.

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All categories — Academic Research

This library provides general educational information, not diagnosis, a treatment recommendation or a guarantee of outcome. Suitability, technique and aftercare must be determined by an authorised healthcare professional after an individual assessment.