Highly palatable and digestible, this all Australian free range lamb and rice formula is an excellent source of protein. It is rich in zinc, iron and vitamin B12, providing the nutrients dogs need for health and wellbeing. Supplemented with the freshest vegetables and fruits for immunity and defence, lamb is a natural source of chondroitin and glucosamine.hly palatable and digestible, this all Australian free range lamb and rice formula is an excellent source of protein. It is rich in zinc, iron and vitamin B12, providing the nutrients dogs need for health and wellbeing. Supplemented with the freshest vegetables and fruits for immunity and defence, lamb is a natural source of chondroitin and glucosamine.