To Robyn, et.al. I have "cut" ferretone to reduce the levels of Vit. A & D myself.. I favor flax seed oil for the health benefits, but have used olive oil in the past. I think any good human grade oil would to the job of reducing these levels, & the preference would be what you considered most healthful. My guys lick flax seed oil straight, & I like it as I get the organic with an expiration date on the bottle, & it's storred in the refrig. at the health food store. You have to be careful of any oil going rancid with time & temperature of storage. I've even had ferretone go bad after long storage at room temp. Take care, Gary & the gang of fur -> Thru joining, their grief has been transmuted to joy, loneliness to celebration... ..Data, in "The Tin Man" episode, STNG. [Posted in FML issue 1864]