Nutritional status, body composition and bone mineral density in gastric bypass females: impact of socioeconomic level Evaluación a largo plazo del estado nutricional, composición corporal y densidad mineral ósea en mujeres operadas de bypass gástrico: im

Abstract

Background: Roux-en-Y gastric bypass (RYGBP) has had a positive impact on co-morbidities associated with obesity. However, in the long-term it can induce micronutrient deficiencies. Aim: To perform a complete nutritional assessment in a group of women previously operated of RYGBP, from different socioeconomic levels (SEL). Patients and Methods: Thirty three women (19 high SEL and 14 low SEL), were assessed by dietary recalls, anthropometric measurements, muscle strength, bone mineral density, routine clinical laboratory, serum levels of vitamin B12, 25OHvitamin D, folate, calcium, ferritine, ceruloplasmin and indicators of bone turnover (parathohormone, osteocalcin and urinary pyridinolines). Their values were compared to those of 30 control women (18 high SEL and 12 low SEL). Results: Low SEL operated women consumed fewer vitamin and mineral supplements compared with their high SEL pairs. No cases of vitamin B12, folic acid or copper deficiencies were detected. Frequency of iron defic