McDonald's says it is temporarily closing all of its 850 restaurants in Russia in response to the invasion of Ukraine. Charlie Neibergall/AP hide caption
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A recent study revealed the sugar industry's efforts 50 years ago to shape medical opinion on how sugar affects health. But today, scores of companies continue to fund food and nutrition studies. Caspar Benson/fStop/Getty Images hide caption
Soda sales have been flattening, but the industry has stepped up marketing and lobbying, according to Marion Nestle in Soda Politics: Taking on Big Soda (And Winning). Akash Ghai/NPR hide caption
Cows rotate in the milking parlor at Fair Oaks Farms, a large-scale dairy and tourist attraction, near Rensselaer, Ind. Dan Charles/NPR hide caption
4-MEI, a chemical created during the manufacturing of caramel color used to dye sodas brown, is under new scrutiny. iStockphoto hide caption
Coca-Cola Life, a new product being rolled out in Argentina with a green label, is being marketed as a "natural" and therefore lower-calorie cola. Coca-Cola hide caption
Share a Coke with ... (enter name here). Darren Foreman (left), Elliott Brown (middle), teigan (top right), ☼zlady (bottom left) via Flickr hide caption
Coca-Cola says the caramel coloring in its signature soda has always been safe. OmerSukruGoksu/iStockphoto.com hide caption