Sumary of Substituting one serving of beef per day nearly halves the carbon footprint of US diets:
- Implementing single-item food substitutions significantly reduced the carbon footprint and water scarcity footprint of participants’ diets, according to findings published in the American Journal of Clinical Nutrition.
- For example, substituting poultry or pork for beef reduced carbon and water scarcity footprints by 48.4% and 29.9%, respectively, according to Diego Rose, PhD, MPH, RD, a professor of nutrition and food security in the School of Public Health and Tropical Medicine at Tulane University, and colleagues.
- Single-item substitutions Substituting poultry or pork for one serving of ground beef per day yielded the greatest average 1-day reduction in GHGE, which decreased by 3.73 kg CO2-eq (48.4%).
- While the study did not include plant-based meat analogues, research has shown that the carbon footprint of these products is much lower than that of ground beef and somewhat lower than that of turkey, they wrote.
- Other replacements that yielded significant GHGE reductions included substituting shrimp with cod (34.1% reduction) and dairy milk with soymilk (8.1% reduction).