What industry is general nutrition centers in? General Nutrition Centers, Inc. is located in Pittsburgh, PA, United States and is part of the Health and Personal Care Stores Industry. General Nutrition Centers, Inc. has 13,800 total employees across all of its locations and generates $2.29 billion in sales (USD). (Sales figure is modelled).How do i access nutnutrition services? Nutrition topics include: Members of the community can access these outpatient services by contacting the Department of Nutrition and Food Services at 617-726-2779. In some cases, a referral from a primary care physician or specialist is necessary, and health insurance will often cover the costs of these services.What does a store manager do at general nutrition center? A store manager is responsible for their store’s budget, payroll, and inventory. They will also schedule employees. A store manager may earn around $31,000 a year. These are some questions that you may be asked during your General Nutrition Center job interview.How do i contact gnc customer service? Our customer service agents are here to help you and answer questions at 1-877-GNC-4700. Email us any general questions you may have or inquiries about your GNC.com order.