An increase of the body mass often aggravates cardiovascular risk factors. In Poland, over the past 25 years, some epidemiological studies, focused on body mass disorders were conducted. Their results suggest an increase of the prevalence rate of overweight and obesity. The goal of the studies LIPIDOGRAM2004 and LIPIDOGRAM2006 was to assess the prevalence rate of abnormal body mass among adult patients remaining under the care of family physicians in Poland. 17.065 patients in 2004 and 17.152 in 2006, older than 30 years, recruited by 675 study physicians in 444 sites across Poland, were involved into these studies. It was found that approximately 3/4 of the patients included into these studies had BMI > or = 25 kg/m2. Overweight rate was much more prevalent among men than women (48,0% vs. 39,2% in 2004, p<0,0001; 47,4% vs. 39,7% in 2006, p<0,0001). In 2004, obesity was present in above 30% of the participants, including small, but statistically significant difference in the population of men (32,8% vs. 31,2%, p<0,05). In 2006, an increase in the prevalence of obesity in men, compared to women was reported (34,7% vs. 31,6%, p<0,001). Health care actions aimed at decreasing these phenomena would require targeted efforts of family physicians, in collaboration with a multidisciplinary team of specialists.