Health Benefits of the Mediterranean Diet

The Mediterranean diet is widely recognized as a healthy way to eat. Research has linked this eating pattern to better heart health and a lower risk of several chronic diseases.

Rather than following strict rules or eliminating entire food groups, Mediterranean-style eating focuses on vegetables, fruits, whole grains, beans, nuts, fish and healthy fats.

The diet also consistently earns high ratings from U.S. News & World Report for its nutritional quality, health benefits and long-term sustainability.

“The Mediterranean diet isn't about giving up foods you enjoy. It's about building healthier eating habits you can maintain over time. That flexibility is one reason it works well for so many people,” says Preston Hale, MD, an internal medicine physician at Scripps Coastal Medical Center Encinitas.

There is no single Mediterranean diet. Foods and cooking traditions vary across countries and cultures, but they share many of the same basic principles.

A Mediterranean-style diet generally emphasizes:

• Vegetables and fruits
• Whole grains
• Beans, lentils and other legumes
• Nuts and seeds
• Extra virgin olive oil and other unsaturated fats
• Fish and seafood
• Herbs and spices

Poultry, eggs and dairy foods may be eaten in moderation, while red and processed meats, sweets and foods high in saturated fat are typically eaten less often.

The Mediterranean diet is rich in fiber, vitamins, minerals and healthy unsaturated fats. Its health benefits come from the combination of foods and nutrients rather than any single food.

Heart health is one of the Mediterranean diet’s best-known benefits. Research suggests that following this eating pattern may lower the risk of cardiovascular disease and improve risk factors, including high blood pressure and unhealthy cholesterol levels.

“What makes the Mediterranean diet so beneficial for heart health is the combination of foods. Eating more fiber-rich foods and choosing healthier fats can help improve cholesterol levels and blood pressure, two important risk factors for heart disease,” Dr. Hale says.

The American Heart Association recommends a similar overall eating pattern built around vegetables, fruits, whole grains, beans, lentils, nuts, seeds, fish and other lean proteins while limiting added sugars, sodium and ultraprocessed foods.

Mediterranean-style eating may help lower the risk of type 2 diabetes and support healthy blood sugar levels.

Fiber-rich foods, such as whole grains, vegetables, beans and nuts, can help slow the absorption of sugar into the bloodstream and reduce blood sugar spikes. Limiting sugary drinks, sweets and highly refined carbohydrates can help too.

If you have diabetes or prediabetes, you may need a more individualized eating plan. Talk with your doctor or a registered dietitian about what is right for you.

What is good for your heart may also be good for your brain.

Research has linked following the Mediterranean diet with a lower risk of cognitive decline and dementia, including Alzheimer’s disease.

These benefits may be related to better cardiovascular health, lower inflammation and nutrients found in plant foods, fish and healthy fats.

Although the Mediterranean diet is not designed specifically for weight loss, it may support healthy weight management as part of an overall healthy lifestyle.

Its emphasis on vegetables, fruits, whole grains and beans provides fiber that can help you feel full and satisfied. The focus is on nutritious foods and long-term eating habits rather than restrictive dieting.

Flexibility is one of the Mediterranean diet's biggest strengths. You don’t have to eat traditional Mediterranean dishes to follow it. Instead, you can adapt this eating style to Mexican, Asian, Middle Eastern and other cuisines by emphasizing vegetables, whole grains, beans, healthy fats and lean proteins.

Mediterranean-style eating also shares principles with the current Dietary Guidelines for Americans, which emphasize nutritious foods while limiting highly processed foods, added sugars and refined carbohydrates.

Mediterranean-style eating may be easier to start than you think.

“You don’t have to change everything at once. Start with simple swaps, like adding more fiber-rich foods and choosing healthier fats,” Dr. Hale says. “These changes can help improve cholesterol levels and support heart health.”

The key is to build habits you can keep. Here are some ways to start:

• Add vegetables or fruit to more meals.
• Choose whole grains instead of refined grains.
• Eat beans, lentils or other plant proteins more often.
• Use olive oil instead of butter when appropriate.
• Choose fish or poultry more often than red or processed meat.
• Snack on fruit, nuts or vegetables instead of highly processed foods.
• Use herbs and spices for flavor instead of relying on extra salt.

The Mediterranean diet is one of many healthy ways to eat. Other options include the DASH diet, which helps lower blood pressure, and flexitarian eating, which emphasizes plant foods while allowing some meat.

These approaches share similar principles, but the best choice is one that fits your tastes, lifestyle and health goals. Healthy eating is also just one part of staying well, along with regular exercise and adequate sleep.

If you have diabetes, kidney disease, food allergies or another health condition, talk with your doctor or a registered dietitian about an eating plan that meets your needs.