GNC has filed for Chapter 11 bankruptcy reorganization, hoping to restructure some $750 million of debt.
GNC plans to close 800 to 1,200 stores as it tries to find a buyer.
The company has faced growing competition from local retail grocery chains and online.
GNC operates 3 locations within Merced County: Atwater, Merced, and Los Banos.
The company did NOT release information on what stores would close.
GNC operates 5,800 store across the U.S.