Olives are rich in phenolic compounds, which are commonly linked to cancer prevention, but also serve a major purpose in protecting the heart. Phenolic compounds like hydroxytyrosol act as anticoagulants to thin the blood, which reduces the chances of blood clots developing. This also eases blood vessel tension and dilates the blood vessels, which reduces the strain on the heart and increases blood flow around the body in a healthy way.
Resveratrol is a very important antioxidant that directly affects the functioning of certain mechanisms in the blood vessels, primarily making them less prone to damage, which can cause blood vessel constriction. In fact, resveratrol increases vasodilator activity, meaning that it relaxes blood vessels and reduces chances of blood clot formation and subsequent heart issues like strokes or heart attacks.