Introduction:
The aim of this study was to evaluate the influence of a balanced low-calorie diet on body weight, lipid profile, blood glucose concentration and blood pressure in individuals with excess body weight.

Material and Methods:
Three overweight or obesity men underwent a three-months long dietotherapy based on individualized diet with a moderate energy deficit (450–600 kcal). Before and after the dietotherapy from each patient obtained 7-days menus by the current record method, measured: size and body composition, blood pressure and commissioned measurement of blood's biochemical parameters (morphology, lipid profile, glucose).

Results:
After the dietotherapy, in a diet of patients no. 1 and 3 observed significantly lower intake of fat and carbohydrates including sugars added. In a patient no. 2 reported an increase in carbohydrate intake. As a result of dietotherapy observed weight loss of 6.2 kg, 3.5 kg and 5 kg and a decrease of glucose concentration in blood of 10 mg/dl, 14 mg/dl and 27 mg/dl in a patient no. 1, 2 and 3 respectively. In all patients noted reductions in waist and hip circumference. In patients 1 and 3 body fat content was reduced by 2% and 1% respectively. The period before and after the dietotherapy showed no changes in blood pressure and changes in lipid profile parameters were unclear.

Conclusions:
As a result of the use individualized and balanced three-months low-calorie diet in overweight or obesity patients obtained a reduction of body weight, waist circumference, and blood glucose concentration. However, no changes in the lipid profile and blood pressure were noted.