What is the best brand of food for ferrets?

I have two ferrets one male who is 5 y/o and a one female who is 2 or 3 y/o. My male is being treated for adrenal cancer with lupron injections. Currnetly I am feeding them an 8 in 1 food. They seem to really like the food, but I am just wondering if there is a better food that will help supplement them better in their diets. Also on occasion I add in ferrtone to their food for their skin and coats.|||Wysong Ferret Archetypal 1 is the BEST food on the market for ferrets, it's also VERY expensive. After that, the next best would be Innova EVO Ferret. It's still a bit expensive (when compared to others), but not near as much as Wysong. My ferrets love Innova EVO. As for 8in1, the only one I give my ferrets and recommend is the Ultimate Crunchy. Zupreem is also good. As for Marshalls, they might be a ferret company, but their ferret food is, in my opinion, complete crap.|||go to a pet store, like pet smart they have a better variety but you can feed them alot of things, they are compared to a cat, i fed mine cat food ocasionally, dry and wet but kept them on their ferret food|||8 in 1 and the Marshals food are, in my opinion, one of the best. Talk to your vet and see what his opinion is. Since one of yours has cancer, there might be something that you need to add to their food or something that you've got to stay away from|||I feed my 9 little fuzzies 8 in 1, and also give them treats - Linatone (they don't care for Ferretone), Ferretvite, fruit crunchies, yogies and Bandits. I know the Linatone helps with their skin and fur, as does the Ferretvite which also includes vitamins. Dooks!|||Innove Ferret and Wysong Archetype 1. This link will give you several charts to rate your ferret food.|||ZuPreem, 8 in 1, and Innova EVO are the best foods to feed your ferret.|||james wellbeloved is a fab make of ferret food and recomend it any pet shop should do it or will be able to get hold of it for u.|||Marshall pet food is by far the best option out there. Marshall is a FERRET company unlike ZuPreem 8 in 1 and other brands, who make products for other pets as well. The Marshall family has been breeding and caring for ferrets since 1939. They are the largest breeder in the world. My ferret loves it. They also offer a senior formula for your 5 year old male. Great quality product.