An economist with the Rand Corporation argues that Los Angeles' fast-food ban failed because it merely blocked new construction or expansion of "stand-alone fast-food" restaurants in neighborhoods where that style of restaurant was uncommon to begin with. David McNew/Getty Images hide caption

itoggle caption David McNew/Getty Images

(Left to right) Rodeo concessions include the loaded potato; deep-fried chocolate cupcake and the Texas Tater Twister, a spiral-cut tater on a sausage, deep-fried. (Left and Center)Robert Young/Flickr; Dave 77459/Flickr hide caption

itoggle caption (Left and Center)Robert Young/Flickr; Dave 77459/Flickr

Celebrity chef Giada De Laurentiis during a guest appearance on ABC's The Chew last fall. She can cook rich foods and keep her trim figure, but new research suggests that's a difficult feat for amateur cooks watching along at home. Lou Rocco/ABC/Getty Images hide caption

itoggle caption Lou Rocco/ABC/Getty Images

A daily cup of joe (or two) may help protect against Type 2 diabetes and cardiovascular disease. And an egg a day will not raise the risk of heart disease in healthy people, according to a panel of nutrition experts. Premshee Pillai/Flickr hide caption

itoggle caption Premshee Pillai/Flickr

Participants in a boxing class designed specifically for people with Parkinson's disease at Fight 2 Fitness gym in Pawtucket, R.I. Joel Hawksley for NPR hide caption

itoggle caption Joel Hawksley for NPR

One reason cooking at home might be linked to poor health? Researchers say it could be because there are too many unhealthful baked goods coming out of the oven. Amriphoto/iStockphoto hide caption

itoggle caption Amriphoto/iStockphoto

Researchers created the bag on the left as an example of groceries bought in December while those on the right show groceries bought in January. After the New Year, some shoppers add healthier items to their carts but end up taking home more calories than they do during the holidays, a study found. Robyn Wishna/Cornell University hide caption

itoggle caption Robyn Wishna/Cornell University

One of Huddle House's signature dishes is the Philly Cheese Steak Tots: steak covered with cheddar cheese sauce and shredded cheese, on an open-faced omelet with Tater Tots. Huddle House hide caption

itoggle caption Huddle House

People shop in a Miami grocery store on July 8. USDA says that despite the drop in unemployment, the number of food insecure Americans has not declined because higher food prices and inflation last year offset the benefits of a brighter job market. Joe Raedle/Getty Images hide caption

itoggle caption Joe Raedle/Getty Images

Although food entrepreneur Tim West's family legacy is in Doritos chips, he wants to shake up the food system — with sustainable, healthful food. Vignesh Ramachandran/Ozy hide caption

itoggle caption Vignesh Ramachandran/Ozy