The Planetary Health Diet, which emphasizes fruits and vegetables as well as protein from plant-based sources, has been shown to reduce the risk of premature death by 30%, according to a new study published in The American Journal of Clinical Nutrition. Researchers found that following this diet can lower the risk of every major cause of death, including heart disease, cancer, and lung disease. The diet also has environmental benefits, as it can help slow the process of climate change and promote environmental sustainability.
A plate of food following the Planetary Health Diet consists of half fruits and vegetables, along with whole grains, unsaturated plant oils, plant protein sources, and optional modest amounts of protein from animal sources. This diet provides essential nutrients like vitamins, minerals, antioxidants, fiber, protein, and omega-3 fatty acids that are necessary for overall health and the prevention of chronic diseases. By limiting the consumption of red and processed meats, which have a higher environmental impact and are linked to conditions like colorectal cancer and heart disease, the Planetary Health Diet promotes human and planetary health.
The study, which examined data from over 200,000 participants in the Nurses’ Health Study I and II and the Health Professionals Follow-Up Study, found that those who adhered most closely to the Planetary Health Diet had a 30% lower risk of premature death compared to those with the least adherence. In addition to the health benefits, high adherence to this diet also resulted in reduced greenhouse gas emissions, lower cropland use, and decreased fertilizer needs. Experts believe that planet-based diets such as the Planetary Health Diet are the way forward in terms of promoting health, longevity, cost-effectiveness, and environmental sustainability.
The Planetary Health Diet is supported by various organizations such as the American Heart Association, American Cancer Society, and the American Diabetes Association, all of which advocate for diets that stress the importance of fruits and vegetables while limiting processed foods. This diet shares similarities with other healthy eating patterns such as the Mediterranean diet, pescatarian, vegetarian, and DASH diets. Experts believe that the Planetary Health Diet can serve as an additional motivating factor for individuals to make dietary improvements, as it highlights the impact of personal food choices not only on individual health but also on the health of the planet and society as a whole.
Dr. Walter Willett, a co-author of the research and chairman of the Department of Nutrition at Harvard T.H. Chan School of Public Health, emphasizes the strong connection between human and planetary health, stating that eating healthfully benefits both individuals and the environment. Overall, the Planetary Health Diet has been shown to have significant health benefits and environmental advantages, making it a promising approach to preventing chronic diseases and promoting sustainability. Experts recommend working with a registered dietitian nutritionist to personalize and optimize the Planetary Health Diet according to individual preferences, cultural values, and nutritional needs.
