Long-term hypovitaminosis D and secondary hyperparathyroidism outcomes of the Roux-en-Y gastric bypass: a systematic review.
Noah J SwitzerG MarcilS PrasadE DebruN ChurchP MitchellE O BillingtonR S GillPublished in: Obesity reviews : an official journal of the International Association for the Study of Obesity (2017)
It appears that hyperparathyroidism persists at 5-year follow-up after gastric bypass, despite most patients being supplemented with calcium and Vitamin D.