Environmentally sustainable diet can reduce risk of death

New York Eating more planet-friendly foods could help you live a longer, healthier life as well as reduce the risk of death by about a quarter, according to new research that called for a more environmentally sustainable diet.

The study builds upon prior research that identified foods that are a win-win for both health and the environment - such as whole grains, fruit, non-starchy vegetables, nuts, and unsaturated oils -- as well as foods that could be harmful to the environment and human health, like eggs and red and processed meats.

The new findings suggest eating more planet-friendly foods can help reduce a person’s risk of death from causes such as cancer, heart disease, respiratory diseases, and neurodegenerative diseases and also reduce impacts to the environment in terms of factors like water use, land use, nutrient pollution, and greenhouse gas emissions.

“We proposed a new diet score that incorporates the best current scientific evidence of food effects on both health and the environment,” said Linh Bui, doctoral candidate in the Department of Nutrition at Harvard TH Chan School of Public Health.

“The results confirmed our hypothesis that a higher Planetary Health Diet score was associated with a lower risk of mortality,” Bui added.

With the new study, the researchers aimed to create a simple tool that policymakers and public health practitioners could use to develop strategies to improve public health and address the climate crisis.

“As a millennial, I have always been concerned about mitigating human impacts on the environment,” said Bui. “A sustainable dietary pattern should not only be healthy but also consistent within planetary boundaries for greenhouse gas emissions and other environmental parameters.”