A dental researcher says he's concerned that excessive soda consumption is leading to severe erosion of teeth. iStockphoto.com hide caption

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Share a Coke with ... (enter name here). Darren Foreman (left), Elliott Brown (middle), teigan (top right), ☼zlady (bottom left) via Flickr hide caption

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Harry Patel, an employee of Blondie's Deli and Grocery, talks on the phone while waiting for customers in New York on Monday. A new anti-smoking proposal would make New York the first city in the nation to keep tobacco products out of sight in retail stores. Mark Lennihan/AP hide caption

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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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When they eat out at a restaurant, kids consume more calories than they do at home. Here, members of the Long Island Gulls hockey team enjoy a lunch at TGI Friday's back in 2007 in Marlborough, Mass. Bruce Bennett/Getty Images hide caption

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Coca-Cola says the caramel coloring in its signature soda has always been safe. OmerSukruGoksu/iStockphoto.com hide caption

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