The Mediterranean diet is not inherently low in sodium. The average daily sodium intake among people following a Mediterranean-style eating pattern is around 2,150 mg, which exceeds the World Health Organization’s recommended limit of less than 2,000 mg per day. Several staple Mediterranean foods, including olives, feta cheese, cured meats, and anchovies, are notably high in sodium. That said, the diet’s overall structure, rich in potassium from fruits and vegetables, offers some natural counterbalance to sodium’s effects on blood pressure.
Where the Sodium Comes From
The Mediterranean diet centers on whole foods like vegetables, legumes, fish, olive oil, and whole grains, which are naturally low in sodium. The problem is that some of its most iconic ingredients are preserved in salt. A single cup of crumbled feta cheese contains roughly 1,700 mg of sodium, which alone approaches an entire day’s recommended limit. Olives, capers, anchovies, and cured meats like prosciutto all rely on salt for preservation and flavor.
Bread is another quiet contributor. In Italian populations following a Mediterranean pattern, bread and baked goods consistently rank among the top sources of daily sodium. These aren’t processed foods in the conventional sense, but they add up across meals. When researchers studied sodium intake among Italian adults eating a traditional Mediterranean diet, the estimated mean intake was 2,150 mg per day, with the top quarter of participants exceeding 2,500 mg.
How It Compares to the DASH Diet
If you’re specifically looking for a low-sodium eating plan, the DASH diet is the one designed with sodium targets built in. DASH explicitly caps sodium at either 2,300 mg or 1,500 mg per day depending on the version. The Mediterranean diet has no such cap. Its guidelines focus on food quality, cooking methods, and overall dietary patterns rather than specific nutrient limits.
A clinical trial comparing the two diets head-to-head found that when both were combined with salt restriction, the Mediterranean diet actually produced a greater drop in systolic blood pressure (the top number). The DASH diet and Mediterranean diet both lowered blood pressure more effectively than salt restriction alone. This suggests the Mediterranean diet’s benefits for heart health go beyond whatever its sodium content happens to be, likely because of its high levels of protective fats, fiber, and antioxidants.
The Potassium Factor
One reason the Mediterranean diet performs well for cardiovascular health despite its sodium content is its potassium load. Fruits, vegetables, beans, and leafy greens are central to the diet, and all are potassium-rich. Potassium directly counteracts sodium by helping your kidneys flush it out and by relaxing blood vessel walls, both of which lower blood pressure. The ratio of potassium to sodium in your diet may matter more than your raw sodium number. A diet with 2,200 mg of sodium paired with 4,000+ mg of potassium behaves very differently in the body than a processed-food diet with the same sodium but far less potassium.
The PREDIMED study, one of the largest trials of Mediterranean eating, followed nearly 7,500 people at high cardiovascular risk. Both versions of the Mediterranean diet tested (one supplemented with extra-virgin olive oil, the other with mixed nuts) reduced blood pressure more than a standard low-fat diet, even though neither version imposed any salt restriction. This reinforces that the overall nutrient profile of the diet matters, not just its sodium content in isolation.
Making It Lower in Sodium
If you want the health benefits of Mediterranean eating but need to watch sodium, you have practical options. The biggest wins come from managing the high-sodium staples rather than avoiding them entirely.
- Rinse canned goods. Replacing the canning liquid with fresh water before heating lowers sodium by about 33% in canned beans. For canned tuna, a three-minute rinse under running water removes roughly 80% of the sodium.
- Choose fresh over brined. Fresh tomatoes instead of sun-dried, fresh fish instead of anchovies, and lower-sodium cheese options like fresh mozzarella instead of feta all make a meaningful difference.
- Use smaller portions of salty ingredients. A tablespoon of olives contains about 62 mg of sodium. Used as an accent rather than a main ingredient, they contribute flavor without excess salt.
- Lean on herbs, spices, and acid. Mediterranean cooking already relies heavily on garlic, oregano, basil, rosemary, lemon juice, and vinegar. These can replace much of the salt in recipes without losing flavor depth.
You don’t need to reinvent the diet. The core of Mediterranean eating, olive oil as the primary fat, abundant vegetables, whole grains, legumes, fish a few times a week, is naturally moderate in sodium. It’s the preserved and brined additions that push intake higher, and those are the easiest components to adjust.
The Bottom Line on Sodium and Heart Health
The Mediterranean diet sits in a middle zone for sodium. It’s far lower than a typical Western diet heavy in processed foods (which averages over 3,400 mg per day in the U.S.), but it’s not a controlled low-sodium plan like DASH. For most people without severe hypertension or heart failure, the Mediterranean diet’s combination of moderate sodium, high potassium, healthy fats, and fiber produces strong cardiovascular outcomes. If your doctor has told you to stay under a specific sodium number, you can absolutely follow a Mediterranean pattern while being more selective about brined and cured foods.