Three delicious appetizers that the longest-living people swear by

It's perfectly normal to crave snacks during the day. However, it would be good to think about what you eat.

And although it may seem impossible, the inhabitants of the 'blue zones', although from different countries of the world, share common formulas when it comes to a healthy life.

Many of the world's longest-lived people live in regions of Japan, Costa Rica, Italy, Greece and California – in the so-called 'blue zone'.

People in these countries have been the subject of countless studies and often live up to 100 years.

From Ikaria in Greece, Okinawa in Japan, Sardinia in Italy, Loma Linda in California and the Nicoya Peninsula in Costa Rica, scientists have noticed many similarities between their lifestyles, where diet is a major part of it.

Read too The simple rules followed by the longest living people in the world

The following are some delicious and healthy foods you can eat if you want to eat like a 'blue zone' person and potentially extend your life:

Crispy chickpeas

If you're looking for an alternative to the crunchy taste of potato chips, roasted chickpeas may become your new go-to snack. Beans are the main component of the diet of the inhabitants of the blue zone, so it is logical that they choose them as a snack.

Nuts

Nuts are a staple snack for blue zone residents. They're small, but packed with vitamins and minerals – although they're high in calories, so you'll want to avoid constant snacking.

Also watch out for salted or caramelized nuts. An ideal mix includes almonds, peanuts, cashews, Brazil nuts and walnuts. Stick to a maximum of two small handfuls of your favorite blend.

Read too What people who live longer have in common

Fresh fruits

You can't choose better than fresh fruit for a snack - he writes The Sun. Choose whatever is in season. October is characterized by apples, pears and citrus fruits. Your supermarket will probably also stock things like grapes, kiwis and pineapples. /Telegraph/