Does a Mediterranean diet reduce heart disease risk, and how should benefits be interpreted?
Evidence supports a Mediterranean dietary pattern for cardiovascular health, but one protection percentage cannot be guaranteed for everyone. Benefits depend on baseline risk, adherence and other treatment. A study result does not mean olive oil alone prevents heart attacks.
Details
What did research study?
PREDIMED studied people at elevated cardiovascular risk, with dietary counselling and groups receiving extra-virgin olive oil or nuts. Its reanalysed report supported benefit for cardiovascular outcomes. That result cannot be transferred unchanged to every age or health profile.
Relative benefit is not personal probability
A relative risk reduction differs from the number of events actually prevented. Absolute benefit depends on starting risk and follow-up duration. Interpretation therefore belongs alongside blood pressure, cholesterol, smoking and medical history.
Apply the overall pattern
Build meals around vegetables, legumes, whole grains and unsaturated fats while reducing highly processed foods. Account for portions, allergies and individual dietary needs. Do not stop prescribed heart medicines or add large amounts of calories simply because olive oil or nuts can be healthy choices.
Related reading: What is a Mediterranean-style diet, and how can I follow it?.