I was wondering if you feed your ferrets with food preserved with vitamin E & give them vitamin supplement such as Ferretone, they can get an overdose of vitamin E? There as been lots of posts about other types of preservatives and I would like to get information on the possible drawbacks of natural preservatives. Lorraine Tremblay Webmistress of Mustela Canada | Webmestre de Mustela Francia http://www.storm.ca/~ferret [Posted in FML issue 2629]