Your guinea pig needs a variety of foods to keep him healthy and happy. Start with a high-quality, nutritionally complete guinea pig pellet. Add high nutrition greens such as romaine lettuce or spinach. Other vegetables such as carrots or squash can add nutrition and keep your pig’s teeth trim. Give your guinea pig lots of timothy hay to nibble on. This hay helps your pig’s digestive system work well and is good for his teeth. Your pig will enjoy some fruits as well but only give him small amounts of fruit so he won’t get diarrhea. Guinea pigs can not manufacture vitamin C on their own so you must provide all of this vitamin for him through the fruits and vegetables you select. Vitamin C drops can make a mess when mixed with pellets and is depleted quickly from water if added as a supplement. Contact your North Phoenix, AZ vet to learn more