Boston, Massachusetts – A groundbreaking study published in The American Journal of Clinical Nutrition suggests that following a diet that is beneficial for the planet may also have significant health benefits. Researchers found that individuals who closely adhered to the Planetary Health Diet had a 30% lower risk of premature death compared to those with the lowest adherence. Additionally, the diet was associated with a 29% reduction in greenhouse gas emissions and a 51% decrease in land use, highlighting the potential impact of dietary choices on both personal health and the environment.
The corresponding author of the study, Walter Willett, emphasized the crucial role of the food system in addressing climate change. By shifting towards a more sustainable and plant-based diet, individuals can contribute to mitigating the effects of climate change while improving their own health. The findings underscore the interconnectedness of human and planetary health, emphasizing the importance of adopting a diet that is not only nutritious but also environmentally friendly.
Utilizing health data from over 200,000 participants, this study represents the first large-scale investigation into the recommendations of the Planetary Health Diet. Participants were free of major chronic diseases at the beginning of the study and completed dietary questionnaires periodically over a span of up to 34 years. Willett described this research as one of the most significant in his career, emphasizing the importance of sustainable dietary practices.
The Planetary Health Diet, first proposed by the EAT-Lancet Commission in 2019, promotes a balanced approach that includes a variety of minimally processed plant foods along with moderate consumption of meat and dairy. Similar to the Mediterranean diet, the Planetary Health Diet can be adapted to suit different preferences, ranging from fully plant-based and vegan to omnivorous with modest amounts of animal products. The key focus is on increasing the intake of healthy foods such as fruits, vegetables, whole grains, nuts, and legumes while reducing the consumption of less nutritious options.
According to EAT, a “planetary health plate” should consist of half vegetables and fruits, along with whole grains, plant protein sources, and optional animal protein sources in modest quantities. This balanced approach not only supports personal health but also contributes to environmental sustainability. By incorporating more plant-based foods and reducing meat and dairy consumption, individuals can make a positive impact on both their own well-being and the health of the planet.