Clinical Trial Finds Low-Fat Vegan Diet Significantly Reduces Greenhouse Gas Emissions and Supports Health

Sun, 03 May 2026 07:20:00 +0200

A recent 12-week randomized clinical trial led by Dr. Hana Kahleova examined the effects of a low-fat vegan diet on adults with type 1 diabetes. The study found that participants who adopted a plant-based diet focused on fruits, vegetables, whole grains, and legumes experienced a 55% reduction in diet-related greenhouse gas emissions and a 44% decrease in cumulative energy demand. These reductions were driven primarily by eliminating meat and dairy products, highlighting the environmental impact of animal-based foods. Importantly, these benefits were independent of calorie intake, indicating that the composition of the diet—not just its quantity—is the key factor. Beyond environmental improvements, participants also showed meaningful health benefits, including improved insulin sensitivity, lower insulin requirements, weight loss, and reduced cholesterol levels. Researchers emphasized that these findings demonstrate a rare convergence between human health and planetary health, providing