Nutrition researchers are reaching a new consensus: Cut back on all those refined carbs. And remember that some fat is good. Stacy Spensley/Flickr hide caption

itoggle caption Stacy Spensley/Flickr

Bolthouse Farms helped pave the way for using Mountain Dew-style tactics to sell healthy foods, like this ad for baby carrots. It was a wake-up call for the rest of the food industry. Crispin Porter Bogusky via AP hide caption

itoggle caption Crispin Porter Bogusky via AP

JuJu Harris is the author of The Arcadia Mobile Market Seasonal Cookbook. A former recipient of government food assistance, she now teaches healthy eating skills to low-income families in Washington, D.C. Courtesy of Molly M. Peterson hide caption

itoggle caption Courtesy of Molly M. Peterson