"These findings provide the scientific basis for the clear health benefits that have been seen in people who have olive oil in their diet," said Paiva-Martins.
Heart disease is caused partly by reactive oxygen, including free radicals, acting on LDL or "bad" cholesterol and resulting in hardening of the arteries. Red blood cells are particularly susceptible to oxidative damage because they are the body's oxygen carriers.
They found that DHPEA-EDA was the most effective and protected red blood cells even at low concentrations.The new discovery, Paiva-Martins believes, can lead to the production of "functional" olive oils specifically designed to reduce the risk of heart disease.