Earlier this month, the U.S. Food and Drug Administration proposed food companies use new, front-of-package labels highlighting the levels of fat, salt and added sugar in their products.

Your food could soon come ... ability to use different labels to evaluate a food’s healthfulness. The FDA’s proposed label differs from stop-sign-shaped symbols used in countries such Chile ...

similar to stop signs, on foods high in calories, saturated fat, sodium or sugars. Other countries, such as Peru and Mexico, have added similar warning labels. Marion Nestle, a retired professor ...