09/09/2023
Lets settle this once and for all
The Blue Zones are a cherry-picked myth, despite what the TV tells you!
The Blue Zones are regions around the world where people are reported to live longer, healthier lives compared to the global average. These areas have gained attention for their high concentration of centenarians and low rates of age-related diseases.
Some well-known Blue Zones include Okinawa (Japan), Sardinia (Italy), Nicoya Peninsula (Costa Rica), Ikaria (Greece), and Loma Linda (California, USA). However, the concept of Blue Zones lacks scientific validation. While these regions may have longer-lived populations, the idea of Blue Zones has been popularized by media and marketing rather than through comprehensive scientific studies.
The criteria for defining a Blue Zone vary, and the longevity of these populations is attributed to a complex interplay of genetic, cultural, lifestyle, and environmental factors. This is why attempting to draw firm conclusions about their longevity secrets—such as their purported low protein, minimal animal food diets, is nonsensical. Plus, what about the studies that show countries with the highest meat and protein intake live longer? (See below!).
Centenarians may live longer in spite of their alleged low protein, vegetarian-leaning diets, not because of it. The Blue Zones can certainly offer insights into healthy living, but they should be viewed more as observational anecdotes rather than scientifically established principles for longevity.
In the meantime, I’ll keep employing the nutritional power of animal-source foods to reach my best health.
But wait...
Dispelling Blue Zones myths: High meat intake is associated with longevity
In this population study from 2021, researchers sought to establish if there was an association between high meat intake, life expectancies, and childhood mortality across 175 countries. Spoiler alert! There was. Using multi-step statistical analysis, researchers found that meat intake positively correlated with longer life expectancies and lower childhood mortality, and this effect remained significant after controlling for confounding factors attributed to longevity (GDP, education level, calorie intake, and obesity). Take that, Blue Zones!
Taking it a step further, meat intake was also one of the most significant predictors of longevity, whereas carbohydrates showed a weak and negative correlation. This makes sense given meat has been a part of our ancestral diet for millennia, as evidenced by its high digestibility, tolerance, and complete amino acid profile.
What's more, it's nutrient profile is likely a major contributor to human survival and evolution in the first place. While the luxuries of modern life make it possible to survive on a vegan or vegetarian diet, it can’t compare to the nutrient density of an omnivorous diet. But don’t take my word for it. The authors state, “Well-planned vegetarian diets, including vegan diets, are nutritionally adequate… but only because their nutritional composition adequately imitates and replaces what is commonly provided by meat.” BOOM! Of course, the study is observational, so we can't say that meat intake is causally longevity-promoting. If we did, we'd be making the same mistake many Blue Zone advocates make!
This golden information laid out by Max Lugavere
https://www.dovepress.com/total-meat-intake-is-associated-with-life-expectancy-a-cross-sectional-peer-reviewed-fulltext-article-IJGM
