Complete Pet Food for Senior Cats 7 Years or Older. Whiskas dry cat food is 100% complete & balanced With the right level of nutrients for your senior cat's changing needs to keep them full of vitality. The Omega 6 fatty acids and Zinc help to support a healthy skin and coat and Vitamin A helps keep their vision strong Increased Vitamin E and Taurine to support natural defences and a healthy immune system, including a healthy heart. Controlled minerals to support a healthy urinary tract