GNC Vitamin stores specialize in vitamins and nutritional supplements for your body's health. They sell multivitamins and individual bottles of each vitamin separately such as vitamins A, B, B12, C, and many more. They also carry dietary supplements for appetite control, meal replacements, and other healthy foods and snacks. There are also supplements for working out (before and after), supplements to help you gain mass, and protein supplements.
GNC also carries probiotics and cleansers for digestive health and herbal and natural supplements to promote good health. There are energy drinks, protein bars, and energy gels, and energy chews to help with your training in any sport or activity. They also have health and beauty products such as skin cremes and cosmetics.