The new research suggests that adopting a more sustainable and environmentally-friendly diet may not only benefit the planet but also contribute to a longer and healthier life for individuals. The study found that individuals who consumed a diet that aligns with both human health and environmental sustainability, known as the Planetary Health Diet, had a 25% lower risk of mortality compared to those who did not follow such a diet.
The Planetary Health Diet emphasizes the consumption of foods that are beneficial to both human health and the environment, such as whole grains, fruits, non-starchy vegetables, nuts, and unsaturated oils. On the other hand, it discourages the intake of foods that may be detrimental to both, like eggs and red and processed meats. By adhering to this dietary pattern, individuals may reduce their risk of dying from various severe medical conditions, including cancer, heart disease, respiratory illnesses, and neurological disorders.
The researchers aimed to create a simple tool, called the Planetary Health Diet Index (PHDI), that can be used by policymakers and public health practitioners to develop strategies for improving public health and addressing the climate crisis. The PHDI was applied to data from over 100,000 participants in two large cohort studies in the United States, covering a follow-up period of more than 30 years. The results showed that individuals with higher PHDI scores, meaning they followed a more sustainable diet, had a significantly lower risk of death from any cause.
However, it’s important to note that the PHDI may not be universally applicable to all populations, as different countries have diverse food cultures and varying food accessibility due to socioeconomic factors. Factors like specific health conditions, religious restrictions, and food availability may also pose challenges for individuals trying to adopt a more sustainable diet. Further research is needed to adapt and validate the PHDI for specific populations and to explore its associations with chronic diseases and environmental impacts beyond the studied cohort.
The research shows potential benefits of adopting a diet that not only supports human health but also promotes environmental sustainability. By making conscious and informed dietary choices, individuals can contribute to both their own well-being and the health of the planet.
