The impact of preoperative vitamin administration on skeletal status following sleeve gastrectomy in young and middle-aged women: a randomized controlled trial

Nutritional Interventions for Patients with Severe Obesity Seeking Bariatric Surgery

“…Treating nutritional deficiencies after surgery can be complex, especially in light of patients’ limited adherence to clinical care and the supplementation regime during the postoperative period, particularly in the longer-term after the surgery [ 15 ]. In regard to routine supplementation regimes at the pre-surgical period, a few recent trials testing vitamin D loading at the pre-surgery period demonstrated some benefits for the pre- and postoperative levels of this vitamin as well as for some skeletal parameters, when combined with other interventions post BS (e.g., calcium supplements and physical activity) [ 16 , 17 , 18 ]. However, the impact of other supplementation programs targeting specific nutrients (e.g., iron, folate, vitamin B12, etc.)…”