Mr Johnson's Supreme Guinea Pig Mix is a wholesome and nutritious complementary blend of cereals, grass, steam flaked peas, alfalfa, extrusions and pellets which supplies your guinea pig with a high in fibre meal with various textures to support their natural foraging instincts ...Mr Johnson's Supreme Guinea Pig Mix is a wholesome and nutritious complementary blend of cereals, grass, steam flaked peas, alfalfa, extrusions and pellets which supplies your guinea pig with a high in fibre meal with various textures to support their natural foraging instincts. This high fibre recipe helps to aid digestive function and aid in dental wear, and the added vitamin C is an essential to your guinea pigs daily diet. Ensure to also provide an unlimited supply of fresh hay and water, as well as a small amount of fresh greens....