Adopting a diet rich in fruits, vegetables, nuts, and fish, while limiting ultra-processed foods, sodas, and red meat, could potentially add up to 10 years to life expectancy.

noli's read

This advice relies heavily on a study published in PLOS Medicine (Fadnes et al., 2022), which modeled the impact of dietary changes on life expectancy. This study uses a statistical modeling methodology based on observational data, which allows for the estimation of trends but does not prove a direct causal link. The cited gains in life years are theoretical projections based on radical and consistent dietary optimization from an early age, which constitutes a simplification of a complex model. The link to 'Blue Zones' is supported by observational studies (e.g., the work of Dan Buettner), highlighting the importance of a predominantly plant-based diet and moderate caloric restriction. While the beneficial effect of these habits on health is consensual, presenting these figures as an individual certainty is an exaggeration: genetics, environment, and overall lifestyle also play major roles. The advice is therefore scientifically grounded in public health models but requires cautious interpretation.

the sources

1. 1Estruch R et al. 2018
2. 2Hall KD, Ayuketah A, Brychta R, et al. 2019
3. 3Lane MM, Gamage E, Du S, et al. 2024