Effect of Laparoscopic Sleeve Gastrectomy on Calcium Metabolism Parameters, Vitamin D, and Parathyroid Hormone in Morbidly Obese Patients: Short-Term Results

Our study results suggest that low vitamin D levels are commonly observed in patients undergoing bariatric surgery. Administering vitamin D as a standard postoperative treatment regimen may be helpful in reducing this deficiency. We, therefore, recommend continuous monitoring of vitamin D, PTH, and serum Ca levels after surgery to manage these issues effectively.