Information on GNC in Vandalia, OH 45377 Outlet Note Regular Brands GNC Ohio Vandalia 330358 Rating 4.7 based on 97 votes Address 10 w. National Road Vandalia, OH 45377 Phone Hours may vary in different stores. For accurate hours, please contact each store directly. Suite643 Hours may vary in different stores. For accurate hours, please contact each store directly. Nearby GNC Outlet GNC Outlet - Brookville GNC Outlet - Bellefontaine GNC Outlet - Ada GNC Outlet - Bowling Green People Also Viewed