The effectiveness of functional food products, in particular bread enriched with plant fiber, was evaluated in the diet of people suffering from atherosclerosis, taking into account the associated diseases of the cardiovascular system. In the diet of a group of volunteers, consisting of men and women aged 65-77 years with atherosclerosis-associated diseases of the cardiovascular system, the whole bread was replaced with grain bread containing wheat germinated grains and amaranth flour. Upon admission and discharge, the lipid profile was monitored in patients. It was found that as a result of regular consumption of grain bread, there was a positive dynamics in lipid metabolism: total cholesterol in the blood by the end of the study was reduced by 2.59 % compared with the value of its level at the time the group entered treatment; indicators of the level of high-density lipoproteins and low-density lipoproteins in serum by the time of discharge decreased by 2.55 and 5.41 %, respectively; and the level of triglycerides in the blood serum of the studied group of patients decreased by 1.8 %. Thus, the possibility of a non-drug reduction of the lipid load on the body and a decrease in the level of cholesterol in the blood of patients was established.