This may seem like a silly place to mention food, but it is the most important factor in your ferrets health and proper grooming.
Ferrets are carnivores and require a diet that is very high in animal protein and fat.
Most pet stores carry brands of food formulated specifically for ferrets. If you find your ferret does not like this type of food, try one of the kitten or nursing cat foods that is also high in protein and fat. Those foods with high vegetable protein contents will not work. Protein in ferret food must be animal or meat protein. Ferret Shampoo Pet stores generally stock at least one brand of shampoo made specifically for ferrets.