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Nutritional status with tirzepatide in obesity: A post hoc analysis of the SURMOUNT-1-4 randomized clinical trials

Year: 2026

Type: article

Abstract: Background: Nutritional deficiencies are common among people with obesity, before and during treatment, such as with very-low-calorie diets and metabolic/bariatric surgery. Obesity management medications (OMMs) can reduce appetite and dietary intake, potentially affecting nutritional status. The impact of OMMs on nutritional outcomes in people with obesity warrants further study. Methods: . Results: . Conclusions: TEAEs and treatment discontinuations due to macronutrient malnutrition were uncommon in the SURMOUNT-1-4 trials of tirzepatide for obesity. Lack of routinely collected vitamin and mineral levels during the trials limited assessment of the impact of tirzepatide treatment on micronutrient status. Systematic assessment of nutritional status before and during OMM treatment would enhance future trials. Clinicaltrialsgov identifiers: NCT04184622 (SURMOUNT-1); NCT04657003 (SURMOUNT-2); NCT04657016 (SURMOUNT-3); and NCT04660643 (SURMOUNT-4).

Source: Obesity Pillars

DOI: 10.1016/j.obpill.2026.100248