- The companies leaving the GMA include some very big names indeed. The Campbell Soup Company led the way, followed by Unilever (maker of a vast array of packaged foods, such as Hellman's mayonnaise), the candy maker Mars, Tyson Foods (America's biggest meat producer), Nestlé, Dean Foods, Hershey's, and the grain giant Cargill.
Only Campbell Soup has given specific reasons for leaving the industry group. CEO Denise Morrison told industry analysts last July that Campbell had run into "philosophical differences with many of our peers in the food industry on important issues" such as whether to label GMOs or to quickly adopt the FDA's expanded nutrition facts labels. In both cases, Campbell Soup broke with most other food companies in adding that information to its product labels. The company has since joined a much smaller group, the Plant Based Food Association.