A randomized controlled trial comparing oral and intravenous iron supplementation after Roux-en-Y gastric bypass surgery

Background Iron deficiency (ID) is one of the most common postoperative deficiencies that may develop after Roux-en-Y gastric bypass (RYGB). The optimal mode of treatment is uncertain. Aim To compare the efficacy of oral ferrous fumarate (FF), oral ferrous gluconate (FG), and a single intravenous infusion of ferric carboxymaltose (FCM) in women with ID after RYGB. Methods Multicenter randomized controlled trial including 120 women with a serum...