Vitamin D Concentration Changes after Bariatric Surgery.

Introduction: Bariatric surgery causes physiological and anatomical changes in the gastrointestinal tract that interfere with intestinal absorption and, consequently, with the nutritional status, especially about vitamin D. The aim of the study was to evaluate the vitamin D levels and body composition of these patients in the Roux-en-Y gastric bypass (RYGB) and vertical sleeve gastrectomy (VSG) types of surgery.

Methods: The retrospective cohort study included a population of 120 patients aged between 18 and 65 years, with class II or III obesity, undergoing bariatric surgery procedures (VSG or RYGB-type).

Body dissatisfaction, addiction to exercise and risk behaviour for eating disorders among exercise practitioners.

Objective: This study investigated the association between body dissatisfaction (BD), addiction to exercise and risk behaviors to eating disorders (EDs) among Brazilian exercise practitioners, besides comparing the variables according to sex, age group and modality.

Methods: Participants were 60 exercice practitioners of fitness ( = 44) and crossfit ( = 16), with mean age of 26.58 ± 7.