Rich in flavorful ingredients like fruits, vegetables, whole grains, and heart-healthy fats, the Mediterranean diet is equal parts delicious and nutritious.

It’s also associated with a variety of benefits and may help support brain function, promote heart health, regulate blood sugar levels, and more.

Although there are no concrete rules for how to follow the Mediterranean diet, there are many general guidelines you can follow to incorporate the principles of the diet into your daily routine.

This article takes a closer look at what the Mediterranean diet is, how to follow it, and how it can affect your health.

The Mediterranean diet is based on the traditional foods that people used to eat in countries bordering the Mediterranean Sea, including France, Spain, Greece, and Italy.

Researchers noted that these people were exceptionally healthy and had a low risk of many chronic conditions (1).

Although there are no strict rules or regulations for the diet, it typically encourages fruits, vegetables, whole grains, legumes, nuts, seeds, and heart-healthy fats. Processed foods, added sugar, and refined grains should be restricted (2).

Numerous studies have now shown that the Mediterranean diet can promote weight loss and help prevent heart attacks, strokes, type 2 diabetes, and premature death (3).

For this reason, the Mediterranean diet is often recommended for those looking to improve their health and protect against chronic disease.

The Mediterranean diet has been linked to a long list of health benefits.

Promotes heart health

The Mediterranean diet has been studied extensively for its ability to promote heart health.

In fact, research shows that the Mediterranean diet may even be linked to a lower risk of heart disease and stroke (4).

One study compared the effects of the Mediterranean diet and a low fat diet and reported that the Mediterranean diet was more effective at slowing the progression of plaque buildup in the arteries, which is a major risk factor for heart disease (5).

Other research shows that the Mediterranean diet could also help lower levels of diastolic and systolic blood pressure to support heart health (6).

Supports healthy blood sugar levels

The Mediterranean diet encourages a variety of nutrient-dense foods, including fruits, vegetables, nuts, seeds, whole grains, and heart-healthy fats.

As such, following this eating pattern may help stabilize blood sugar levels and protect against type 2 diabetes (7).

Interestingly, multiple studies have found that the Mediterranean diet can reduce fasting blood sugar levels and improve levels of hemoglobin A1C, a marker used to measure long-term blood sugar control (8).

The Mediterranean diet has also been shown to decrease insulin resistance, a condition that impairs the body’s ability to use insulin to regulate blood sugar levels effectively (9, 10).

Protects brain function

Several studies show that the Mediterranean diet could be beneficial for brain health and may even protect against cognitive decline as you get older.

For example, one study including 512 people found that greater adherence to the Mediterranean diet was associated with improved memory and reductions in several risk factors for Alzheimer’s disease (11).

Other research has found that the Mediterranean diet may be tied to a lower risk of dementia, cognitive impairment, and Alzheimer’s disease (12).

What’s more, one large review also showed that following the Mediterranean diet was linked to improvements in cognitive function, memory, attention, and processing speed in healthy older adults (13).

  • Eat: vegetables, fruits, nuts, seeds, legumes, potatoes, whole grains, herbs, spices, fish, seafood, and extra virgin olive oil
  • Eat in moderation: poultry, eggs, cheese, and yogurt
  • Eat rarely: red meat, sugar-sweetened beverages, added sugars, processed meat, refined grains, refined oils, and other highly processed foods

Exactly which foods belong to the Mediterranean diet is controversial, partly because there’s variation between countries.

The diet examined by most studies is high in healthy plant foods and relatively low in animal products and meat. However, eating fish and seafood is recommended at least twice a week.

The Mediterranean lifestyle also involves regular physical activity, sharing meals with other people, and minimizing stress levels.

You can include a mix of fresh, frozen, dried, and canned fruits and vegetables, but check package labels for added sugar and sodium.

Ideally, you should base your diet on these healthy Mediterranean foods:

  • Vegetables: tomatoes, broccoli, kale, spinach, onions, cauliflower, carrots, Brussels sprouts, cucumbers, potatoes, sweet potatoes, turnips
  • Fruits: apples, bananas, oranges, pears, strawberries, grapes, dates, figs, melons, peaches
  • Nuts, seeds, and nut butters: almonds, walnuts, macadamia nuts, hazelnuts, cashews, sunflower seeds, pumpkin seeds, almond butter, peanut butter
  • Legumes: beans, peas, lentils, pulses, peanuts, chickpeas
  • Whole grains: oats, brown rice, rye, barley, corn, buckwheat, whole wheat bread and pasta
  • Fish and seafood: salmon, sardines, trout, tuna, mackerel, shrimp, oysters, clams, crab, mussels
  • Poultry: chicken, duck, turkey
  • Eggs: chicken, quail, and duck eggs
  • Dairy: cheese, yogurt, milk
  • Herbs and spices: garlic, basil, mint, rosemary, sage, nutmeg, cinnamon, pepper
  • Healthy fats: extra virgin olive oil, olives, avocados, and avocado oil

You should limit these processed foods and ingredients when following the Mediterranean diet:

  • Added sugar: added sugar is found in many foods but especially high in soda, candies, ice cream, table sugar, syrup, and baked goods
  • Refined grains: white bread, pasta, tortillas, chips, crackers
  • Trans fats: found in margarine, fried foods, and other processed foods
  • Refined oils: soybean oil, canola oil, cottonseed oil, grapeseed oil
  • Processed meat: processed sausages, hot dogs, deli meats, beef jerky
  • Highly processed foods: fast food, convenience meals, microwave popcorn, granola bars

Beverages

Water should be your go-to beverage on a Mediterranean diet.

This diet also includes moderate amounts of red wine — around one glass per day.

However, this is completely optional, and wine should be avoided by some people including, anyone who is pregnant, has difficulty drinking in moderation, or is taking certain medications that may interact with alcohol.

Coffee and tea are also healthy beverage choices on the Mediterranean diet. Be mindful of adding lots of added sugar or cream.

You’ll want to limit sugar-sweetened beverages, such as soda or sweet tea, which are very high in added sugar. Fruit juice would be OK to include in moderation, but you’re better off choosing whole fruits to get the benefit of fiber.

Below is a sample menu for 1 week of meals on the Mediterranean diet.

Feel free to adjust the portions and food choices based on your own needs and preferences, and add snacks as desired.

Monday

  • Breakfast: Greek yogurt with strawberries and chia seeds
  • Lunch: a whole grain sandwich with hummus and vegetables
  • Dinner: a tuna salad with greens and olive oil, as well as a fruit salad

Tuesday

  • Breakfast: oatmeal with blueberries
  • Lunch: caprese zucchini noodles with mozzarella, cherry tomatoes, olive oil, and balsamic vinegar
  • Dinner: a salad with tomatoes, olives, cucumbers, farro, grilled chicken, and feta cheese

Wednesday

  • Breakfast: an omelet with mushrooms, tomatoes, and onions
  • Lunch: a whole grain sandwich with cheese and fresh vegetables
  • Dinner: Mediterranean lasagna

Thursday

  • Breakfast: yogurt with sliced fruit and nuts
  • Lunch: a quinoa salad with chickpeas
  • Dinner: broiled salmon with brown rice and vegetables

Friday

  • Breakfast: eggs and sautéed vegetables with whole wheat toast
  • Lunch: stuffed zucchini boats with pesto, turkey sausage, tomatoes, bell peppers, and cheese
  • Dinner: grilled lamb with salad and baked potato

Saturday

  • Breakfast: oatmeal with raisins, nuts, and apple slices
  • Lunch: a whole grain sandwich with vegetables
  • Dinner: Mediterranean pizza made with whole wheat pita bread and topped with cheese, vegetables, and olives

Sunday

  • Breakfast: an omelet with veggies and olives
  • Lunch: falafel bowl with feta, onions, tomatoes, hummus, and rice
  • Dinner: grilled chicken with vegetables, sweet potato fries, and fresh fruit

There’s usually no need to count calories or track macronutrients (protein, fat, and carbs) on the Mediterranean diet.

If you start feeling hungry between meals, there are plenty of healthy snack options you can enjoy on the Mediterranean diet.

Here are a few ideas to help you get started:

  • a handful of nuts
  • a piece of fruit
  • baby carrots with hummus
  • mixed berries
  • grapes
  • Greek yogurt
  • hard-boiled egg with salt and pepper
  • apple slices with almond butter
  • sliced bell peppers with guacamole
  • cottage cheese with fresh fruit
  • chia pudding

Many restaurant meals are suitable for the Mediterranean diet. Try to choose whole grains, vegetables, legumes, seafood, and healthy fat. It’s also key to enjoy your meal and savor it with good company, so choose something that sounds good.

Here are a few tips to help adapt dishes when you’re eating out:

  1. Choose fish or seafood as your main dish.
  2. Ask the server if your food can be cooked in extra virgin olive oil.
  3. Choose whole grain bread, with olive oil instead of butter.
  4. Add vegetables to your order.

It’s always a good idea to shop at the perimeter of the store, which is where the whole foods are typically found.

Opt for nutrient-dense foods as much as possible, including fruits, vegetables, nuts, seeds, legumes, and whole grains.

Here are some basic Mediterranean diet items to add to your shopping list:

  • Vegetables: carrots, onions, broccoli, spinach, kale, garlic, zucchini, mushrooms
  • Frozen veggies: peas, carrots, broccoli, mixed vegetables
  • Tubers: potatoes, sweet potatoes, yams
  • Fruits: apples, bananas, oranges, grapes, melons, peaches, pears, strawberries, blueberries
  • Grains: whole grain bread, whole grain pasta, quinoa, brown rice, oats
  • Legumes: lentils, chickpeas, black beans, kidney beans
  • Nuts: almonds, walnuts, cashews, pistachios, macadamia nuts
  • Seeds: sunflower seeds, pumpkin seeds, chia seeds, hemp seeds
  • Condiments: sea salt, pepper, turmeric, cinnamon, cayenne pepper, oregano
  • Seafood: salmon, sardines, mackerel, trout, shrimp, mussels
  • Dairy products: Greek yogurt, yogurt, milk
  • Poultry: chicken, duck, turkey
  • Eggs: chicken, quail, and duck eggs
  • Healthy fats: extra virgin olive oil, olives, avocados, avocado oil

Though there’s not one defined Mediterranean diet, this dietary pattern is generally rich in healthy plant foods and relatively lower in animal foods, with a focus on fish and seafood.

It has been associated with numerous health benefits and may help stabilize blood sugar levels, promote heart health, enhance brain function, and more.

Best of all, you can adapt the principles of the Mediterranean diet in a way that works for you. If you dislike salmon and sardines but whole wheat pasta and olive oil are your favorites, start building delicious, Mediterranean-inspired meals with foods you love.