Influence of diet and supplements on iron status after gastric bypass surgery

Surgery for Obesity and Related Diseases : Official Journal of the American Society for Bariatric Surgery
Renee A MischlerN Gletsu-Miller

Abstract

Iron deficiency is common after Roux-en-Y gastric bypass (RYGB) surgery, but there is no consensus on the optimal diet quality and quantity for restoring and preserving iron status. The authors explored the impact of dietary and supplemental sources of iron and absorptive factors on iron status. Academic, United States. In a cross-sectional cohort of individuals who underwent RYGB, nutrient intakes from food and supplements were measured using 3-day food records. Blood biomarkers of iron status, including concentrations of ferritin, total iron binding capacity, serum transferrin receptor (sTfR), and the sTfR:ferritin ratio, were assessed by a reference laboratory; iron deficiency was defined as having at least 2 abnormal measures. Associations between iron status biomarkers and dietary predictors were determined using regression analysis. Of the 36 participants, 97% were female, the mean age was 45 years (95% confidence interval, 41-48 years), and body mass index was 32 (30-35) kg/m(2). Iron deficiency was found in 42% of participants. Dietary intake of heme iron, found in meats, was favorably associated with 3 iron status biomarkers (ferritin, β = .366; sTfR:ferritin ratio, β = -.459; and total iron binding capacity, β = -18.2...Continue Reading

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Citations

Dec 28, 2018·Obesity Reviews : an Official Journal of the International Association for the Study of Obesity·Peter N BenottiBruce R Bistrian
Feb 11, 2020·Journal of Gastrointestinal Surgery : Official Journal of the Society for Surgery of the Alimentary Tract·Firoozeh Hosseini-EsfahaniParvin Mirmiran
Feb 15, 2018·JPEN. Journal of Parenteral and Enteral Nutrition·Ajay Kumar JainBruce M Wolfe
Nov 1, 2016·Women's Health·Federico G Mariona
May 1, 2021·Biomolecules·Geir BjørklundDaniel-Ovidiu Costea

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