The Mediterranean diet is an eating pattern modeled on the traditional foods of the countries around the Mediterranean Sea: vegetables, fruit, whole grains, legumes, nuts and olive oil every day, fish and seafood regularly, and only small amounts of red meat, sweets and processed food. It is a pattern rather than a prescription. There is no calorie target, no banned food and no fixed menu, which is part of why it has been easier to study over years than most diets. Moderate wine with meals appears in most descriptions of the traditional pattern, but it is the component with the weakest and most contested evidence, and no health body recommends starting to drink for it.
What it measures
There is no blood test for a diet. In research the Mediterranean diet is turned into a number by an adherence score: you complete a food-frequency questionnaire or a short screener, and points are awarded for foods the pattern encourages and subtracted, or withheld, for foods it limits. The result is a single score describing how close your usual eating is to the traditional pattern. Because the questionnaires and the scoring rules differ between research groups, two papers can both report on the Mediterranean diet and be measuring slightly different things.
Typical values
The scores below are the ones you will meet most often. They are not interchangeable, and the threshold each study calls “high adherence” is a choice made by that study, not a universal cut-off.
| Score | Range | How it works |
|---|---|---|
| MEDAS (14-item screener) | 0-14 | Fourteen yes/no questions, one point each. Used in the PREDIMED trial and in clinic settings because it takes minutes. |
| Mediterranean Diet Score (Trichopoulou type) | 0-9 | Points are given against the sex-specific median intake of the study population, so the same eating habits can score differently in a different cohort. |
| Cohort-specific indexes | Varies | Many large studies build their own version, with different food groups and weights. Compare scores only within one study. |
Why it matters for longevity
The strongest evidence concerns Cardiovascular disease (CVD). In PREDIMED, a randomized trial in adults at high cardiovascular risk, a Mediterranean diet supplemented with extra-virgin olive oil or with nuts lowered the rate of major cardiovascular events by roughly 30 percent compared with a low-fat control diet. That trial was retracted and then republished after irregularities in how some participants were randomized, and the main result held. Beyond it, observational cohorts consistently associate higher adherence scores with lower all-cause mortality, lower rates of type 2 diabetes, and slower cognitive decline. Those cohort findings are associations: people who eat this way also tend to move more, smoke less and be better off, and statistical adjustment only partly removes that.
What changes it
Your score is behavior, so all of it is under your control. The changes that move it most are the ordinary ones: make olive oil the default cooking and dressing fat, put legumes or fish where red or processed meat used to be, eat vegetables at both main meals, choose whole grains over refined, keep nuts as the standard snack, and cut sugary drinks and packaged sweets. Cost and food availability are real constraints, and frozen vegetables, canned legumes and tinned fish score the same as fresh. If blood pressure is your specific concern, The DASH diet overlaps heavily with this pattern and was built around that one outcome.
Related reading
- The Mediterranean Diet and Longevity: The Evidence
- Mediterranean and MIND Diets Cut Dementia Risk
- How to Build a Longevity Diet: A Practical Guide
- How to Slow Aging: What Actually Works
Disclaimer. This article is for information only and does not replace medical advice. Talk to a qualified clinician before changing anything about your health.