The last time a pet food company had to have a recall for too much Vitamin D (Blue Buffalo which also earlier had melamine recalls when those where happening due to imported ingredients from China which I guess is one way to control costs if there is a large advertising budget) there turned out to be more types of foods affected with high D levels than they at first thought. That also was the case with the recent recalls of several brands of foods made at a Diamond facility for salmonella exposure -- more types involved than at first thought. So, if someone is feeding Mazuri it MIGHT make sense to see if the company has checked the type of food you are feeding, if it is made at the same facility in the same time frame, etc. Too much Vitamin D can cause hypercalcemia which can cause calcium deposits in the kidney and heart as well as other organs. Ferrets and dogs are rather susceptible to this problem and if bad enough it can cause kidney failure but luckily if the cause is found in time and the food is stopped in time then the problems can resolve. Anyway, the ones currently on the Mazuri recall are NOT ones you would feed, but if you feed that brand it may pay to make sure that they are testing the food you give if the same ingredient might have been present in the mix. http://www.fda.gov/Safety/Recalls/ucm310630.htm The known foods with the problem appear to have April dates for manufacture. Sukie (not a vet) Ferrets make the world a game. Recommended ferret health links: http://pets.groups.yahoo.com/group/ferrethealth/ http://ferrethealth.org/archive/ http://www.miamiferret.org/ http://www.ferrethealth.msu.edu/ http://www.ferretcongress.org/ http://www.trifl.org/index.shtml http://homepage.mac.com/sukie/sukiesferretlinks.html all ferret topics: http://listserv.ferretmailinglist.org/archives/ferret-search.html "All hail the procrastinators for they shall rule the world tomorrow." (2010, Steve Crandall) On change for its own sake: "You can go really fast if you just jump off the cliff." (2010, Steve Crandall) [Posted in FML 7478]