Bioelectrical impedance analysis (BIA) is a simple, inexpensive, quick, and non-invasive technique for measuring body composition and its analysis is used as an alternative to examine muscle mass and body fat percentage Obesity and depression are two major public health problems among adolescents. Both obesity and depression are very prevalent and associated with numerous health complications, including hypertension, coronary heart disease, diabetes, and increased mortality. The present study was a cross-sectional study on 157 adult females and males from student and staff of Science and Research Branch of Islamic Azad University (SRBIAU) of Tehran that classified in two groups of normal weight and overweight or obese. The proportion of body tissues was determined according to the resistance created. The weight of the subjects was measured and recorded using BIA. Using the DASS-21 Questionnaire for Depression, Anxiety and Stress Based on the present findings, anthropometric indices such as weight, skeletal muscle mass, body mass index, waist to hip ratio, visceral fat level, whole-body water (L), body fat mass (kg), basal metabolic ratio (kcal), degree of obesity (%) ), fat percentage analysis (%), muscle weight analysis (kg), muscle percentage analysis were significantly different between the two groups (P <0.0001) and were higher in obese or overweight groups than the normal one. There were no significant differences in anxiety (p=0.496), stress (p=0.407), and mental health score (p=0.251) in both groups. Whereas, depression was significantly higher in the overweight or obese group (p=0.012). There was no meaningful relationship between BMI and stress (CC=0.04, P=0.612), anxiety (CC=0.052, P=0.519), whereas the positive correlation between BMI and depression (CC=0.932, P=0.035) was significant. There was a direct relationship between obesity and depression, anxiety, and stress. BMI correlates positively with mental health parameters. Manuscript profile

Obesity is an important preventable disease and increases the chance of developing some chronic diseases like hypertension which is related to many factors including oxidative stress. Dietary antioxidants protect the body against oxidative stress. The purpose of this study was to evaluate the potential association of dietary oxygen radical absorbance capacity (ORAC) index with blood pressure in overweight or obese subjects compared to normal-weight subjects. In a cross-sectional study on 157 adult females and males from students and staff of Science and Research Branch of Islamic Azad University (SRBIAU) of Tehran that classified in two groups of normal weight and overweight or obese were evaluated. Demographic and validated food frequency questionnaires (FFQ) were completed and individuals' weight and height information were measured using the BIA. The systolic and diastolic pressure was recorded by the Automatic Blood Pressure monitor. Dietary antioxidant was estimated based on the ORAC index of selected foods reported by the Nutrient Data Laboratory of the United States Department of Agriculture (USDA). The results showed that there was a significant difference between the normal and overweight or obese groups in terms of body mass index, systolic and diastolic pressure (p=0.0001). Also, the ORAC index was higher in normal individuals than the case group, but it was not significant (p=0.222). There was also an inverse correlation between dietary ORAC, systolic and diastolic pressure in both groups, and only in the normal weight group, the association between systolic pressure and the dietary ORAC index was significant (p=0.04). The findings of the present study suggested that the dietary ORAC index was inversely associated with systolic and diastolic pressure in both subjects. Manuscript profile