Honey can be as golden as the sun or as dark as molasses. Researchers have identified over 100 different flavors in it, too, some more savory or stinky than others. Ellen Webber/NPR hide caption

itoggle caption Ellen Webber/NPR

Doughnuts at a Krispy Kreme store in Washington, D.C. An environmental coalition says leading doughnut companies like Krispy Kreme source palm oil from suppliers who are clear-cutting rain forests and destroying wildlife habitat. Meredith Rizzo/NPR hide caption

itoggle caption Meredith Rizzo/NPR

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

Going, going, gone. You won't find azodicarbonamide in Nature's Own products. And Subway is phasing it out, too. But lots of manufacturers are still using the additive. Meg Vogel/NPR hide caption

itoggle caption Meg Vogel/NPR

A new study linking animal protein-rich diets to increased mortality in middle age adds fuel to the controversy over how much protein — and from what sources — is ideal for health. One thing that seems pretty clear: It doesn't hurt to go heavy on the greens. iStockphoto hide caption

itoggle caption iStockphoto