Micronutrient Deficiencies in Patients Candidate for Bariatric Surgery: A Prospective, Preoperative Trial of Screening, Diagnosis, and Treatment.

Bariatric surgery candidates often show preoperative micronutrient deficiency. Although it is documented that a comprehensive micronutrient assessment should be conducted preoperatively to correct the deficiencies before surgery, no previous studies have been effective in correcting deficiencies in sufficient time prior to surgery. Our aim was to identify micronutrient deficiencies preoperatively and correct them before surgery.