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Background/aims: To examine changes in body weight and iron parameters of overweight and obese premenopausal women who participated in a weight loss intervention. Methods: A total of 147 overweight or obese women, aged 20-49 years, were included in this study. Subjects were divided into two groups at the baseline of study. All women underwent a 3 month intervention, a nutritional weight loss program. The first group included women with low hemoglobin levels, as the second group consisted of women with normal hemoglobin levels. Biochemical, and anthropometric parameters were measured, and dietary intake was recorded at the baseline and end of the study. Results: After the intervention, first group had 10.1% weight loss, whereas the second group had 10.7%. A statistically significant relationship between body weight loss and C-reactive protein (CRP) levels was determined. Significant decrease was observed on the anthropometric variables, dietary energy, total fat, saturated fatty acids, and carbohydrate intake. Dietary intakes of Vitamin C, fiber, iron, and calcium levels increased. Conclusion: Weight loss improved the blood iron parameters and anthropometric measurements possibly due to its possitive effect on inflammation. © Mattioli 1885., 012DO6401002 Firat University Scientific Research Projects Management Unit, FÃœBAP, All subjects gave their written and verbal informed consent and the study was approved by the Ethics Committee of Faculty of Medicine, Hacettepe University, Ankara, Turkey (Approval number, 431-1305). This study was funded by Hacettepe University Scientific Research Unit (Approval number, 012DO6401002)., This study was supported by Hacettepe University Scientific Research Projects Unit Ph.D. Thesis Grant (012DO6401002).

Aim: To investigate the relationship between iron deficiency and obesity through dietary intake and inflammation parameters in overweight and obese women. Material/Methods: A total of 619 women, aged 20-49 years were involved in the study. The biochemical parameters [whole blood count (WBC), anaemia parameters, C-reactive protein (CRP), high sensitive C-reactive protein (hsCRP), soluble transferrin receptor (sTfR)] and bioelectrical impedance analysis were analysed in all participants. Results: Iron deficiency was identified in 23.5% of women with normal weight, and was much common in obese (45.6%) and overweight (41.9%) women. Although dietary iron intake was higher in the overweight and obese women, the WBC, CRP, hsCRP and sTfR levels were lower in women with normal weight than overweight and obese women (p