What Exactly Is the Blue Zones Diet?

The blue zones diet is a way of eating that emulates what people eat in the world’s blue zones:

Okinawa, JapanSardinia, ItalyNicoya, Costa RicaIkaria, GreeceLoma Linda, California

The blue zones diet may help lower your risk of:

Heart diseaseType 2 diabetesSome types of cancer, including pancreatic cancerand breast cancer

Our experts didn’t point to any risks associated with the blue zones diet, but both Rajagopal and Cassetty recommend transitioning gradually to the diet if it’s a significant change from what you’re currently eating — it can be challenging to overhaul your diet all at once.

Eat diets that are about 65 percent carbs, 20 percent fats, and 15 percent proteinsChoose plant-based foods about 95 percent of the time and animal-based foods about 5 percent of the timePay attention to how they feel, and eat until they are about 80 percent full

Enjoy these proteins liberally:

All types of beans, including black beans, black-eyed peas, chickpeas, fava beans, lentils, peas, and peanutsTofu

Enjoy these proteins occasionally:

FishEggs

Limit these proteins to rarely or never:

BeefPorkPoultryProcessed meatsFarmed fish

Enjoy these oils and fats liberally:

Olive oilSesame oilAvocado

Limit these oils and fats to rarely or never

Trans fats (these are frequently found in packaged baked goods, margarine, and shortening)

Enjoy all fruits and vegetables liberally:

Leafy greens like spinach, kale, beet and turnip greens, chard, and collards are tops. Seasonal fruits and vegetables, sea greens and sea vegetables such as seaweed and kelp, and mushrooms are also good choices. There are no limits on fresh, whole fruits and vegetables.But limit fruit juices to rarely or never

Enjoy all nuts and seeds liberally

Try to get mix of nuts and seeds, including almonds, Brazil nuts, cashews, walnuts, chia seeds, and pecans

Enjoy these grains liberally:

Whole-grain breadSourdough breadGround cornBarleyBrown riceOatmealQuinoaFarro

Limit these grains to rarely or never

White breadWhite pastaPackaged crackersPackaged sweet and salty snacks

Enjoy these dairy products liberally

Soy milk (unsweetened)

Enjoy these dairy products occasionally

Sheep’s milk or goat’s milk productsFeta cheesePecorino cheese

Limit these dairy products to rarely or never

Cow’s milkCheese made from cow’s milkCreamButter

Enjoy these sweeteners

Honey

Limit these sweeteners to rarely or never

Added sugars such as those found in sweetened beverages, candy, and desserts

Enjoy these beverages liberally:

Water

Enjoy these beverages occasionally

CoffeeGreen teaHerbal teasRed wine

Limit these beverages to rarely or never

Sweetened beveragesAlcohol (other than red wine)

Enjoy fresh herbs, spices, and seasoning liberally

This includes Mediterranean herbs, milk thistle, rosemary, turmeric, lemon, garlic, and miso

Day 1

Breakfast Oatmeal with berries and nuts Lunch Sardinian-style pizza Snack Handful of nuts Dinner Hearty minestrone soup

Day 2

Breakfast Sweet potato hash with veggies Lunch Black bean burger with lettuce and tomato on sourdough Snack A handful of mixed nuts Dinner Tofu steak with mushrooms

Day 3

Breakfast Banana nut smoothie Lunch Grain bowl with veggies and beans Snack Miso soup with veggies Dinner Ratatouille

Day 4

Breakfast Granola with nuts and fruit Lunch Black bean and potato soup Snack Roasted chickpeas Dinner Ceviche with hearts of palm, onion, pepper, and cilantro

Day 5

Breakfast Tropical fruit salad with nuts and coconut Lunch Butternut squash soup Snack Black bean dip with crudité Dinner Vegetarian gumbo

Day 6

Breakfast Veggie hash with corn and onions Lunch Cream of pumpkin soup with soy milk and pepitas Snack Hummus with veggies Dinner Lentil salad with garlic and herbs

Day 7

Breakfast Banana-berry smoothie with soy milk Lunch Jackfruit poke Snack Coconut chia pudding with almonds Dinner Porcini mushroom risotto