Twins in Malawi helped scientists discover a role the gut microbiome appears to play in severe malnutrition. Photograph courtesy of Tanya Yatsunenko hide caption

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Photograph courtesy of Tanya Yatsunenko

Gut Microbes May Play Deadly Role In Malnutrition

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PepsiCo's product line ranges from salty chips and its sugary namesake drink to more healthful fare like hummus and yogurt. In 2010, the company announced plans to cut sugar, fat and sodium in its products to address health and nutrition concerns. Joe Raedle/Getty Images hide caption

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Joe Raedle/Getty Images

How One Man Tried To Slim Down Big Soda From The Inside

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A farmer holds Monsanto's Roundup Ready soybean seeds at his family farm in Bunceton, Mo. Dan Gill/AP hide caption

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Dan Gill/AP

Peanut plants grow on a Halifax, N.C., farm that received federal subsidies in 2011. Robert Willett/MCT /Landov hide caption

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Robert Willett/MCT /Landov

Farm Bill Critics Claim Partial Victory Despite Stalemate

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Farmworkers like these in California picking produce may soon be required by the FDA to take more precautions against spreading foodborne illness. Heather Craig/iStockphoto.com hide caption

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Heather Craig/iStockphoto.com

FDA Releases Rules To Strengthen Safety Of Food Supply

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The expiration date on foods like orange juice and even milk aren't indicators of when those products will go bad. iStockphoto.com hide caption

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iStockphoto.com

Don't Fear That Expired Food

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Think your prime rib holiday dinner is more pricey this year? You're right. But maybe not for the reason you think. Todd Patterson/iStockphoto.com hide caption

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Todd Patterson/iStockphoto.com

Drought, Economics And Your Holiday Feast

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Food companies have begun quietly reducing salt in regular foods because low-salt items like these don't sell as well. Mel Evans/AP hide caption

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Mel Evans/AP

Big Food And The Big, Silent Salt Experiment

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Bali sea salt and a spoonful of Hawaiian red alae salt. Jim Noelker/AP hide caption

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Jim Noelker/AP

The Paradox And Mystery Of Our Taste For Salt

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A soybean field near Campo Verde in western Brazil in January 2011. Researchers argue that enough arable land is already under cultivation to feed the planet for the next several decades. Yasuyoshi Chiba/AFP/GettyImages hide caption

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Yasuyoshi Chiba/AFP/GettyImages

A sign protesting a beverage tax in Richmond, Calif. The U.S. soft drink industry has fought proposals that would put a tax on sugar sweetened beverages like sodas and energy drinks. Braden Reddall/Reuters /Landov hide caption

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Braden Reddall/Reuters /Landov

Most of the gleaming steel tanks outside Fage's yogurt factory hold milk. One, however, holds the yogurt byproduct whey. Dan Charles/NPR hide caption

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Dan Charles/NPR

Why Greek Yogurt Makers Want Whey To Go Away

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The diversity of coconut trees like these planted along the beach in the northern Philippines is in danger, but a French scientist has a plan. Jay Directo/AFP/Getty Images hide caption

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Jay Directo/AFP/Getty Images