Six Signs of Health Superior nutrition with delicious taste is at the heart of your cat's health and happiness. Feeding PURINA ONE daily helps build the six visible signs of health, and the appealing taste ensures they enjoy every bowl. PURINA ONE Hairball formula contains a blend of natural plant fibres that works with your cat's digestive system to help control hairball formation. Feeding this formula in conjunction with regular grooming of your cat (particularly during shedding season and warmer months) is an effective way to help control hairballs. Body Condition Real chicken helps maintain strong muscles - including a strong heart and helps support a healthy energy level. Skin, Coat and Eyes Enriched with Taurine for bright shiny eyes and clear vision. Omega 3 & 6 fatty acids and Vitamin E help support healthy skin and a shiny coat. Dental Health Healthy teeth and gums are a key indicator of good health.