The Recipe for Longevity

American polymath Benjamin Franklin once said, “One should eat to live, not live to eat.” Even though foodies who live to eat, like myself, would partially disagree with Franklin, we cannot deny the immense role food choices play in our lives. The food we eat affects not only our bodies but our overall physical health, mental health, and even how long we live. After all, you are what you eat.

In 2000, researchers Michel Poulain and Gianni Pes first coined the term “Blue Zone” after pointing out the first longevity hotspot in Sardinia, Italy. Following their work, in 2004, Dan Buettner extensively researched this topic and soon recorded the five original Blue Zones: Sardinia, Okinawa, Ikaria, Nicoya, and Loma Linda. Blue Zones are defined as areas with a high population of centenarians (people who are 100 years old or more) and based on studies in the area, there’s one common denominator that explains the longevity of people in these zones.

Food. Not just what they eat, but also how they eat, who they eat with, and the lifestyle they supplement it with. Now popularized globally by content done on this topic, many people have been inspired to implement the food habits of Blue Zones in hopes of adding more years to their lives. So, if you want to find out the secret to living a long life, this may just be the recipe for longevity.

Sardinia, an Italian island in the Mediterranean, was the very first Blue Zone identified for its remarkable number of centenarians. A lot of the local diet is plant-based, with meat saved for celebrations. Daily meals often feature rustic breads, hearty legume stews, and vegetables and fruits such as artichokes, figs, and citrus. These items bring fiber, protein, and loads of vitamins to the (dinner) table! Pecorino cheese, nuts, and the island’s famous Cannonau wine, enjoyed in moderation, bring healthy fats and antioxidants that protect the heart, respectively. But food is only part of the story. Sardinians cherish long, family-centered meals. Close community ties support mental health and foster a sense of belonging and purpose. Add in an active lifestyle of long walks and farming, and it’s easy to see why Sardinia has become a lasting model of longevity.

Next is Okinawa, a set of islands in southern Japan with a high number of female centenarians. Broadly speaking, their diet centers on vegetables like bitter melon, rice, and tofu. The standout food, though, is the Okinawan sweet potato—brown on the outside and purple within—rich in anthocyanins, vitamins, and blood sugar–balancing properties that help lower risks of heart disease and cancer! A fascinating Japanese saying, “Hara hachi bu,” encourages eating until 80% full to support better digestion. Beyond diet, Okinawans embrace cultural principles called moai (lifelong social networks) and ikigai (a strong sense of purpose), which allow people to have a reason to wake up every morning. The Okinawans also enjoy walking and gardening, which boosts cardiovascular health and lower body strength. With the people’s well-rounded diet and lifestyle, Okinawa continues to be an integral piece of global longevity hotspots.

Now we go back to Europe, specifically Ikaria, Greece. It’s an island with surprisingly low rates of dementia, despite the high number of centenarians. The people here follow a classic Mediterranean diet, which has been cited as one of the most balanced diets. Foods include greens, beans, potatoes, whole wheat bread, pasta, and the staple olive oil, which contains heart-healthy monounsaturated fats. A unique feature of Ikaria is the use of herbs: herbal teas provide antioxidants, while rosemary, sage, and oregano act as natural diuretics that help regulate blood pressure. When it comes to community, Ikarians value family and friend connections, which benefit mental health greatly. Something else the Ikarians love, which we all wish we could have more of, is napping, which lowers stress hormones. Ikaria shows that the diet which has lasted the natives for millennia shows notable results.

We now travel to Central America, specifically Nicoya, Costa Rica: a place with great access to health care, which factors into the high centenarian population. The Nicoyans opt for early, light meals, which have been found to add more years to their lives. They eat a lot of whole grains and dairy, but the highlight of their diet is the traditional Mesoamerican trio: corn, beans, and squash. These three crops intricately balance each other because they’re always grown together in a manner that benefits all of the plants, creating a symbiotic relationship. Moreover, they’re all nutrient-dense vegetables, packed with amino acids to form proteins. Beyond diet, a strong sense of purpose, or “plan de vida,” close family ties, and daily physical chores help Nicoyans stay strong, contributing to their remarkable longevity.

Traveling north, we reach Loma Linda, California, USA, where the people live on average a decade longer than other Americans. Before talking about the diet here, it’s important to note that many people of Loma Linda follow Adventism, a Protestant Christian denomination. Many Adventists abstain from alcohol and smoking and practice vegetarianism. This plays into their food choices, as half of their diet consists of fruits and vegetables like various greens, berries, and especially tomatoes, which have been shown to reduce the chance of getting ovarian and prostate cancer. Also attributed to the Adventist lifestyle are healthy, stress-relieving practices, including observing Sabbaths, interacting with other Adventists, and volunteering, all of which lead to joyful, fulfilling lives. With a nutritious, plant-based diet and upbeat lifestyle, it’s no wonder Loma Linda is ahead of the American game of longevity.

Wow, what an awesome vacation! Now that we’ve traveled across the original five Blue Zones, what connections can we observe between these areas relating to their centenarian population? The most prevalent theme seen is that all of the Blue Zones eat mindfully, many even going for a mostly plant-based diet filled with nutrients, fiber, vitamins, and more. There’s less emphasis on meat, and little to no processed foods are consumed, contributing to a lower risk of diseases. Another standout we can see is human connection. These tight community bonds, formed throughout people’s lives, have a profound impact on both mental and physical health, lowering stress and increasing happiness. The physical activity done by people through walking, farming, and chores also has the same benefits. Finally, I want to ask a question: do you see a geographical similarity within some of these Blue Zones? Almost all of them are isolated, and even though there are some downsides, the beautiful thing about isolation is that it allows people of the area to preserve traditional cultures and form tight-knit communities, contributing further to their renowned longevity. All of these factors combined form the killer combo of a healthy body and a long, fulfilling life.

Remember this: when you want to create the recipe for longevity, food will always be an important ingredient, but also take into consideration the people you surround yourself with, the movement you get each day, and the purpose you bring to your life.