Abstract: This invention relates to polybacterial probiotic preparation, which includes new strains of lactic acid bacteria Lactobacillus gasseri 7/12 NBIMCC No. 8720, Lactobacillus plantarum F12 NBIMCC No 8722 and Lactobacillus helveticus A1, NBIMCC No 8721 and has the following set of properties: antioxidant, hypocholesterolemic effect, anti-inflammatory immunomodulating effect, ability to release bioactive peptides that inhibit angiotensin-converting enzyme (ACE), which is responsible for the high blood pressure. The object of invention is also the described probiotic strains of lactic acid bacteria and the developed bacterial products with useful properties. The incorporated probiotic strain Lactobacillus gasseri 7/12 NBIMCC No. 8720, has a number of properties: strong adhesion to the epithelial layer of the colon, the ability for reduction of cholesterol and anti-inflammatory effects by reducing the levels of proinflammatory cytokine interleukin-8.