Environment

Throwing Out Your Leftover Turkey? You're Part of the Wasted Food Problem

80beatsBy Brett IsraelNov 30, 2009 6:35 PM
tday-fridge-web.gif

Newsletter

Sign up for our email newsletter for the latest science news
 

Keep an eye on all that leftover squash casserole and sweet potato souffle in the fridge. It would be a shame if it went bad, because Americans waste a staggering amount of food every year. Nearly 40 percent of the food supply is wasted in the United States alone, according to a new study, published in the journal PLoS ONE. Researchers Kevin Hall and Carson Chow analyzed average body weight in the United States from 1974 to 2003 and figured out how much food people were eating during this period. Hall and Chow assumed that levels of physical activity haven't changed; some researchers think that activity has decreased, but Hall and Chow say their assumption is conservative. Then they compared that amount with estimates of the food available for U.S. consumers, as reported by the U.S. government to the Food and Agriculture Organization of the United Nations. The difference between calories available and calories consumed, they say, is food wasted

[ScienceNOW Daily News].

They dubbed the difference the "missing mass of American food," and say it's the equivalent to each person in the United States wasting

1,450 calories-worth of food per day.

The new study reports more waste than a prior U.S. Department of Agriculture study which found that 27 percent of the food produced in the United States is wasted, according to their interviews with consumers and producers. A similar study presented over the summer suggestsas much as 30 percent of food, worth about $48.3 billion, is tossed out each year, according to ... the Stockholm International Water Institute (SIWI), the Food and Agriculture Organization of the United Nations (FAO) and the International Water Management Institute (IWMI) [LiveScience].

Related Content: 80beats: 9 Eco Rules Humans Shouldn’t Break If We Want to Survive 80beats: Would You Turn Vegetarian to Slow Global Warming? 80beats: Are Pain-Free Animals the Future of Meat?

However, all the food waste studies seem to agree that while poorer countries waste food due to inefficient agricultural production, the majority of waste in richer countries is attributed to consumers simply tossing out the food they buy but don't eat. An overall decline in food prices in rich countries has also made leftovers seem less desirable and more expendable.

Image:

flickr / OctopusHat

1 free article left
Want More? Get unlimited access for as low as $1.99/month

Already a subscriber?

Register or Log In

1 free articleSubscribe
Magazine Examples
Want more?

Keep reading for as low as $1.99!

Subscribe

Already a subscriber?

Register or Log In

More From Discover
Recommendations From Our Store
Shop Now
Stay Curious
Join
Our List

Sign up for our weekly science updates.

 
Subscribe
To The Magazine

Save up to 70% off the cover price when you subscribe to Discover magazine.

Copyright © 2021 Kalmbach Media Co.