Trace Adkins will serve as this year's honorary chairman of Walk for Food Allergy: Moving Toward a Cure. The walk will be held in 20 cities with an additional online version. Adkins' daughter, Brianna, now 6, was diagnosed with a peanut allergy when she was 18 months old following a severe reaction to peanut butter. She is also allergic to eggs and milk. Food allergy afflicts one in 25 Americans and one in 17 under age 3.