The urgency of the problem of metabolic syndrome (MS) is due to the high prevalence and risk of developing cardiovascular complications. Purpose of the study - to investigate the degree of adherence to the Mediterranean diet of the studied sample using the MedDietScore (MDS) questionnaire and to assess the association of score of MDS with the components of metabolic syndrome. A cross-sectional study was conducted, during which a clinical, laboratory examination and questioning of 839 patients was carried out. For assessment of the relationship between the MS, its components and the average MDS score multivariate logistic regression analysis was used. The average score of MDS in the studied population was 20.91 (Me=21.00). The mean MDS score was statistically significantly lower in patients with MS components, compared with patients who did not have these components. The inverse association between adherence to the Mediterranean diet and the components of the MS was revealed.