The aim of this study was to determine blood levels of lead and cadmium in patients with brain aneurysms. We also estimated the influence of dietary habits on the lead and cadmium status in examined patients. The level of lead in the blood of patients with cerebral aneurysms is higher than in healthy people; and frequent consumption of jam, boiled vegetables and beverages has the greatest influence of lead content in the blood of examined patients. The level of cadmium in the blood of patients with cerebral aneurysms is similar to the control group; and the frequent consumption of raw and boiled vegetables, calces and flour products, and bacon and meat products has the greatest influence of cadmium content in the blood of patients.