Abstract
Sleeve gastrectomy has emerged as one of the most common surgical interventions for individuals with obesity. There is evidence about the benefits of bariatric surgery including rapid weight loss and improvements in comorbidities; however, not much is known about its negative health consequences. This article investigates the prevalence of micronutrient deficiencies pre- and postoperatively in adults who have undergone a sleeve gastrectomy. The accompanying case report describes a patient with morbid obesity who developed Wernicke's encephalopathy due to complications after bariatric surgery. Also, it highlights the patient's care as well as missed opportunities to diagnose a micronutrient deficiency.