Mark Vecca, center, Langley Air Force Base Commissary store manager, gives participants of the “Ace Those Aisles” class some background information on how the commissary operates at Langley AFB, Va., May 21, 2012. During the class, participants received a tour of the commissary, and tips on how to buy and eat healthier foods. (U.S. Air Force photo by Senior Airman Wesley Farnsworth/Released)

U.S. Air Force Staff Sgt. Shelia Fitzgerald, 2nd from the left, 633rd Medical Support Squadron Health and Wellness Center NCO in-charge, explains how to read the nutrition labels on a box of cereal during the “Ace Those Aisles” class at the Langley Air Force Base commissary, May 21, 2012. Participants also learned what to look for on nutrition labels, such as five grams of fiber is considered great for an individual food item. (U.S. Air Force photo by Senior Airman Wesley Farnsworth/Released)