Selective guinea pig is a balanced diet for guinea pigs with tasty Dandelion, fennel & nettle. It is high is fibre to help promote healthy teeth and tummies and has added vitamin C to help keep your guinea pigs in the very best of health. Selective also contains linseed, a particularly good source of Omega 3, which helps to regulate coat shine, thickness and colour intensity, as well as supporting a healthy skin. high fibre, vitamin C.