I use Ferret Store Natural for my weasel mixed with Totally Ferret and Nutro Kitten. Lunch doesn't like the FS kibble as much and usually leaves it to the end. She'll sit there and pick out the nutro bits and eat that first. She's such a weirdo. She'll eat the FS eventually. I try to make sure she mostly empties the bowl before it gets refilled. (I don't let her run out of food- since she's a single ferret, I know exactly how much food she'll eat in a day and refill it when there's under a day's worth left) Otherwise, she'll eat only the nutro and not the actual designed-for-ferrets food. I like the ingredients for FS nat. First ingredient is chicken, followed by chicken meal. Both human-grade meat, not by-products.
The Ferret Store Superior Choice Natural Diet for Ferrets
Feeding Guidelines: Ensure your ferret has access to fresh food and water at all times.
Ingredients: Chicken, Chicken Meal, Brown Rice, Lamb Meal, Chicken Fat (preserved with Mixed Tocopherols, Beta-Carotene, Ascorbic Acid and Rosemary), Potatoes, Tomatoes, Chicken Digest, Fish Oil, Flaxseed Oil, Brewer's Dried Yeast, Apples, Garlic, Carrots, Eggs, Broccoli, Dicalcium Phosphate, Potassium Chloride, Lactobacillus acidophilus, Lactobacillus casei, Streptococcus faecium, Lactobacillus plantarum, Choline Chloride, Vitamin E Supplement, Zinc Oxide, Vitamin A Acetate, Copper Sulfate, Manganese Sulfate, Manganous Oxide, Zinc Proteinate, Manganese Proteinate, Copper Proteinate, Iron Proteinate, Calcium Pantothenate, Thiamine Mononitrate, Vitamin B12 Supplement, Niacin, Riboflavin Supplement, Inositol, Pyridoxine Hydrochloride, Potassium Iodide, Vitamin D2 Supplement, Folic Acid, Sodium Selenite, and Cobalt Carbonate.
Guaranteed Analysis:
Crude Protein 38.0% min
Crude Fat 19.0% min
Crude Fiber 2.5% max
Moisture 12.0% max
Ash 7.0 % max
Magnesium approx .095%
Taurine approx. 0.3%
http://www.drsfostersmith.com/Product/Prod_Display.cfm?pcatid=17068&ref=4419&cm_mmc=FerretStore-_-DFS-_-April_2007-_-Foods&subref=AA&N=2007+113622click on More Information