Available in a 5-lb. pail and 9.5-oz. bottle. Suitable for kittens and cats of all life stages. Uses natural food sources. Enhances nutritional merit of traditional cat food. Contains necessary vitamins and minerals. Made in the USA. The Wysong F-Biotic Cat Food Supplements is a convenient nutrient accessory that enhances the nutritional merit of traditional cat foods. Suitable for kittens and cats of all life stages, this supplement uses natural food sources to provide addition micronutrients, probiotics, and enzymes. Containing all the necessary vitamins and minerals and made in the US, this vitamin is easily implemented by sprinkling onto your cat's food. Optional Sizes:9.5 oz. bottle5 lb. pail About WysongSince 1979 Dr. Wysong's vision of providing truly natural, holistic pet food has been realized through pioneering research and commitment to principle. Wysong views your pet's health as an extremely serious concern and strives to develop state-of-the-art diets through their in-house pet health doctorate professionals. Unlike the typical pet food company, Wysong does not outsource their manufacturing or expertise. For several generations, Wysong products have been fed to thousands of dogs, cats, ferrets, and horses alike, shoring up their health against common diseases and ailments throughout their lives. Wysong provides free pet health information to owners and the most nutritious pet food available to see their wish of the very best health for you and your pet become a reality. They don't call themselves the thinking person's pet food for nothing. Size: 5 lb. Pail.