Irrational diet is among the risk factors of the development of lipid metabolism abnormalities and associated disorders of the cardiovascular system. To prevent these conditions, it is necessary to be aware of the content of individual lipids in the blood serum and to study the mechanisms of their changes. Lipid metabolism was explored in the workers engaged in food industry of the city of Vilnius in terms of the relationship to such factors as age, sex, body weight, relative weight of the fatty, osseous and muscle tissues. It has been demonstrated that the content of cholesterol esters and triglycerides in the blood serum appeared helpful in finding differences between the workers' groups from different factories. Lipid metabolism was also investigated by means of correlation and regression analysis.