legumes such as lentils, beans, and peasAlong with its fellow legumes, lentils, and peas, beans are a staple food in the Blue Zones diet.
whole grains
Although some uncooked forms of grains can also offer protein to your diet, grains are often thought of as primarily a source of carbs.
Despite having a terrible reputation in the diet industry for having a high caloric density, with just a handful containing up to 200 calories, nuts and seeds
in moderation, fish
Fish is a common protein source because so many Blue Zones are close to the water.
sometimes eggs
With six to seven grams of protein per serving and B vitamins, eggs are a nutrient-rich, easily available protein source.