PURINA ONE® Adult with Tuna is made from real tuna and high-quality ingredients designed to meet your cat’s complete nutritional requirements. Feeding PURINA ONE® daily helps build the visible differences in your cat’s health. PURINA ONE® Adult with Tuna is formulated to meet the nutritional levels established by AAFCO (Association of American Feed Control Officials) Cat Food Nutrient profiles for adult cat maintenance. Making the switch to PURINA ONE®? Please allow 7 – 10 days to ease the transition from your cat’s current food. Each day, simply feed a little less of the previous food and a little more of PURINA ONE® until you’re feeding PURINA ONE® exclusively. If your veterination has your cat on a specific diet, see them before making any changes. Be sure to provide fresh water in a clean container for your cat every day. Proper diet, exercise and veterinary care are the best ways to keep your cat healthy.