Hi Lisa ; Cat Sip I've used with a 6 week old when a friend said they need more calcium until 12 weeks. Mom's milk is best, but she was elsewhere. The baby liked it fine, and older guy Tommy thought it was good too. No problems encountered. My friend is a vet tech, & developed her own "milk mix" recipe from canned (not sweetened) milk, the lastase enzyme to digest the lactose, & several other things. It's better but the little box is quick in a pinch:) Take care, hugs to all Gary & the gang of fur Timmy's web site=<http://www.concentric.net/~Gferret/>; He's the ferret totally healed from "terminal lymphoma" without drugs or surgery. :) Timmy's tonic now available at http://www.ferretstore.com/holmed.html :888-833-7738 Timmy's Mailing List = http://www.onelist.com/subscribe.cgi/TimmyFerret Timmy's Forum = http://forums.delphi.com/m/main.asp?sigdir=TimmyFerret Another emil for me is <[log in to unmask]>, in case the indrirect.com has trouble. [Posted in FML issue 3389]