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Food production is an important contributor to climate change, accounting for about a quarter of carbon emissions globally. According to a study that examined the real-world diets of thousands of people in the U.S., we could greatly reduce the carbon footprint of what we eat by changing just one food each day.
"We found that making one substitution of poultry for beef resulted in an average reduction of dietary greenhouse gases by about a half," said lead study author Diego Rose, Ph.D., professor and director of nutrition at Tulane University.
Rose - Research - Nutrition - Society - Nutrition
Rose will present the research at Nutrition 2019, the American Society for Nutrition annual meeting, held June 8-11, 2019 in Baltimore.
"To our knowledge, this is the only nationally representative study of the carbon footprint of individually chosen diets in the U.S.," said Rose. "We hope this research will raise awareness about the role of the food sector in climate change and the sizable impact of a simple dietary change."
Study - Information - Participants - National - Health
The new study is based on diet information from more than 16,000 participants in the 2005-2010 National Health and Nutrition Examination Survey. A portion of this survey asked participants to recall all the foods they consumed in the previous 24 hours. The researchers used this information to determine which foods had the highest greenhouse gas emissions and to calculate a carbon footprint for each individual diet.
They found that the 10 foods with the highest impacts...
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