Increased calcium intake has been associated with lower body weight, BMI and adiposity, mostly in children, youth and women. In men results are inconclusive. In this study the relation between calcium intake and body weight and body fat in obese men was investigated. 200 men, the mean age 45.1 +/- 9.4 y, the mean BMI 33.2 +/- 4.8 kg/m2, were divided into 4 groups on the basis of their calcium/protein index. No significant differences in body weight, BMI, fat mass, percentage of body fat were found across subgroups and no significant correlations between calcium intake and body variables were stated. This study did not confirm the association between calcium intake and body weight and adiposity in men.