Keep your ferret's digestive system on the right track with Marshall Uncle Jim's Original Duk Soup Mix Ferret Food. Ferrets can be picky eaters, and a poor diet can lead to health issues, including itchy skin and a dull coat. Marshall Uncle Jim's Original Duk Soup Mix Ferret Food is an easily digestible supplement that works to improve and stimulate your little guy's appetite, boost his immune system and aid in healthy digestion. It's a great choice for finicky eaters, ailing ferrets or post-surgery recovery. Plus, it's easy to administer—simply mix with water or sprinkle over food as directed.