We recommend feeding your small animal a food that has been scientifically formulated for your particular animal. Each small animal comes from a unique geographical location where they inherited unique dietary needs. For example, Guinea pigs require a food formulated with appropriate levels of vitamin C or they will get scurvy and rabbits need a diet high in fiber. (Food from the Wild Guinea Pig) Hamsters and gerbils do have similar nutritional needs and can eat the same foods. (Kaytee Fiesta Hamster and Gerbil Food) It is important to feed your small animal a diet that is scientifically formulated to provide the right nutrition for your small animal. If you have any questions about what to feed a small animal please Contact Us and we will be happy to assist you.