Eggs Are a Climate-Friendly Food

If you’ve ever wondered where eggs rank in terms of environmental sustainability compared to other animal- and plant-source proteins, have a look at this chart.

infographic titled "Comparing Proteins"
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^Protein quality based on protein digestibility corrected amino acid score (PDCAAS). The highest possible PDCAAS score is a 1.0.
*Greenhouse gas emissions per 100 grams of protein. Emissions are measured in carbon dioxide-equivalents.
+Retail price aggregates from 12 beef cuts or preparations, 7 pork cuts or preparations, 6 poultry cuts or preparations, grade A eggs, and fresh whole milk from USDA ERS as of October 10, 2024.

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  12. Walmart prices for tofu obtained through https://www.walmart.com/ip/Nasoya-Refrigerated-Organic-Super-Firm-Tofu-16-oz/134768563?classType=REGULAR&athbdg=L1600&from=/search. Walmart website. https://www.walmart.com/. Accessed October 14, 2024.
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