The Mediterranean Diet: Complete Evidence-Based Guide
Everything we publish about the Mediterranean diet — what to eat, how to plan it, and what the research shows — organized in one place and reviewed by our registered dietitian nutritionist review team.
Quick answer
The Mediterranean diet is a traditional eating pattern built on extra-virgin olive oil, vegetables, fruit, legumes, nuts, whole grains and fish, with limited red meat and few processed foods. It is consistently ranked the healthiest overall diet and is linked in randomized trials to lower cardiovascular risk.
Common questions, answered
What is the Mediterranean diet?
An eating pattern modeled on how people ate in Crete, southern Italy and Greece in the 1960s: extra-virgin olive oil as the main fat, vegetables and fruit at most meals, legumes and whole grains as the base, fish at least twice a week, moderate yogurt and cheese, and little red meat or processed food. Read the full guide
What can you eat on the Mediterranean diet?
Vegetables, fruit, legumes, whole grains, nuts and seeds, extra-virgin olive oil, fish and seafood, eggs, yogurt and cheese in moderation, herbs and spices. Red meat, sweets, refined grains and ultra-processed foods are occasional rather than daily. Read the full guide
Is the Mediterranean diet good for weight loss?
Yes. Because meals are high in fiber, protein and unsaturated fat, most people eat fewer calories without tracking. Trials comparing it with low-fat diets show equal or greater fat loss and better long-term adherence, which is why it is often recommended for sustainable weight loss. Read the full guide
What does a Mediterranean diet meal plan look like?
A typical day is Greek yogurt with berries and walnuts for breakfast, a lentil and vegetable salad with olive oil for lunch, baked salmon with roasted vegetables and farro for dinner, and fruit or hummus with vegetables as snacks. Read the full guide
Is the Mediterranean diet good for your heart?
It has the strongest cardiovascular evidence of any eating pattern. The PREDIMED randomized trial found a Mediterranean diet supplemented with extra-virgin olive oil or nuts reduced major cardiovascular events compared with a reduced-fat control diet. Read the full guide
How do I start the Mediterranean diet?
Swap your cooking fat to extra-virgin olive oil, add a vegetable and a legume to two meals a day, eat fish twice a week, move red meat to once a week, and make fruit or nuts your default snack. Change one meal at a time rather than the whole week at once. Read the full guide
Start here: the basics
What the diet is, where it came from, and how to eat this way from your first meal.
Meal plans and menus
Day-by-day menus, breakfasts, snacks and batch-cooking routines you can copy.
Food lists and shopping
Exactly what to buy, what to limit, and how to choose good olive oil.
Weight loss
How the pattern drives fat loss without counting, and how fast results come.
Health conditions and benefits
What the research shows for the heart, blood sugar, the liver, the gut and longevity.
Comparisons and variations
How it stacks up against keto and other popular diets, plus a plant-based version.
How we produce this guide
Every page is written by Kimberly Clark, a nutritional scientist and the founding editor of the Mediterranean Diet blog, and checked by our Registered Dietitian Nutritionist review team. Health claims cite peer-reviewed research — including the PREDIMED and Lyon Diet Heart trials and the Seven Countries Study — and each article lists its sources. More about our editorial process.