A food composition for functional foods and nutritional supplements is for preventing, reducing or treating cardiovascular diseases or mild manifestations thereof, obtained from the combination of extracts derived from citrus species, which contain between 25 and 80% by weight of hesperidin; between and 10% by weight of isonaringin; between 0.5 and 1% by weight of eriocitrin; and between 0.1 and 1% by weight of diosmin and the use of the composition in functional foods and nutritional supplements.