Inclusion | Exclusion |
---|---|
Men and women ages 18–100 years | Another planned form of bariatric surgery |
Planned OLGB | Hypercalcemia (calcium >2.63Â mmol/L) or hypocalcemia (calcium <1.75Â mmol/L) |
25-OHD <75 nmol/L | Renal insufficiency (creatinine >133 μmol/L or GFR <50 ml/min) |
BMI >40 or ≥35 kg/m2 with comorbidities | Primary hyperparathyroidism |
Body weight <150Â kg (owing to limitation of DEXA measurement) | Malignancy |
Capability to consent | Infection (e.g., HIV) |
Medical conditions requiring daily calcium supplements or antacid use | |
Known hypersensitivity to cholecalciferol | |
No capability to consent | |
Imprisoned persons |