The association between dietary profile with practical biochemical parameters in bariatric surgery candidates

Background: the diet of individuals with morbid obesity often is different from the diet of normal weight adults. among several methods for evaluating dietary intakes, dietary patterns and diet quality indices (mediterranean diet score (mds) and healthy eating index (hei)) are most informative. the aim of the present study is determination of association between dietary patterns, mds and hei with anthropometric and biochemical parameters in individuals with morbid obesity who are candidates of bariatric surgery. methods: participants of present study were adults with morbid obesity who candidate for bariatric surgery and have referred to the surgery clinic of firoozgar hospital. ideal body weight and adjusted ideal body weight were calculated. the dietary data were collected using a food frequency questionnaire (ffq). dietary patterns, mds and hei were calculated using ffq data. anthropometrics and biochemical parameters were assessed. all statistical analyses were done using spss. a p-value of <0.05 was considered significant. results: hei and mds were negatively related to blood iron status. moreover, these dietary indices were associated with ferritin level. in the case of hei, this relationship was positive while negative for mds. a significant correlation was seen between dietary pattern 1 with body mass index (bmi), total cholesterol and iron. such a correlation was also seen between dietary patter 2 with albumin. however, no correlation was seen between dietary pattern 3 with any of anthropometric and biochemical parameters. conclusion: finding of present study indicates that regardless of energy intake, diet quality plays a critical role in the metabolic health of body.