Your Guide to the Mediterranean, DASH and Portfolio Diets

which heart-healthy diet is the best one for you?

Published: March 25, 2026

Heart shape of ketogenic low carbs diet concept. Ingredients for healthy foods selection on dark stone background. Balanced healthy ingredients of unsaturated fats for the heart and blood vessels. — © kerdkanno | Getty Images The Mediterranean, DASH and Portfolio diets were developed to address specific cardiovascular risk factors. Cleveland Clinic dietitians say all three diets are so good for you that everyone should be following one of them.

You pledged to eat healthier this year, so you decide to try the highly regarded Mediterranean eating plan. Then, you read that U.S. News & World Report named the DASH diet the heart-healthiest diet of 2025. As you weigh both options, your doctor suggests you look into the Portfolio diet.