Garden Select Adult Guinea Pig blends enticing garden favorites with non-GMO (non-genetically engineered) ingredients to support your pet?s healthy, active lifestyle. We start with high fiber Oxbow hays for healthy digestion and add stabilized Vitamin C and prebiotics to help support whole body health. Garden Select Adult Guinea Pig provides 100% of your pet?s daily recommended vitamins and minerals with no artificial preservatives, colors or flavors.