Perioperative Nutrition and Surgical Outcomes in Patients Receiving Glucagon-like Peptide-1 Receptor Agonists: A Scoping Review
Abstract
Background and Objectives: Glucagon-like peptide-1 receptor agonists (GLP-1RAs) are increasingly prescribed for obesity and type 2 diabetes mellitus. While these agents provide substantial metabolic benefits, concerns have emerged regarding their effects on nutritional status and potential implications for perioperative outcomes. Materials and Methods: A scoping review was conducted in accordance with PRISMA-ScR guidelines. A structured literature search was conducted from 2 May 2026 to 8 June 2026 examining GLP-1RA therapy, nutritional status, body composition and surgical outcomes. Eligible studies included investigations of postoperative outcomes associated with GLP-1RA use, nutritional and body composition effects of GLP-1RAs, associations between nutritional abnormalities and surgical outcomes, and perioperative nutritional optimisation strategies. Data were extracted and synthesised narratively. Results: Twenty studies met the inclusion criteria. Four major themes were identified: (1) nutritional and body composition changes associated with GLP-1RA therapy, (2) effects of malnutrition, sarcopenia, myosteatosis and micronutrient deficiencies on surgical outcomes, (3) postoperative outcomes associated with GLP-1RA use, and (4) perioperative nutritional assessment and optimisation strategies. GLP-1RA therapy was consistently associated with reduced energy intake, inadequate protein intake, micronutrient deficiencies and loss of lean body mass. These abnormalities overlap…
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