Vitamin D Status After Gastric Bypass or Sleeve Gastrectomy over 4 Years of Follow-up

Background Bariatric surgery for severe obesity can lead to micronutrient/vitamin deficiencies. Aims To study baseline and post-surgical prevalence of vitamin D deficiency in patients undergoing bariatric surgery. Participants and Setting Patients undergoing bariatric surgery in a university teaching hospital in North West England. Methods We performed an observational cohort analysis of longitudinal data on vitamin D and related parameters in...