GNC Health Store for sale in Kissimmee, Florida. Become a part of the growing Health Industry. Located in a Publix Plaza, this GNC Health Store is the staple of the community, with repeat customers and great exposure.World renowned training and support system to thrive as a new owner. Training is required for all new franchise owners. All financials are available after meeting with the seller. P.O.S system inlace to verify financials.