Originally Posted by Orang

Whoever needs to protect the cat buffet: Be sure to read the warnings on the dog food additive -- cats' systems are very sensitive. Also, the additive may make the food unpalatable to cats.

What I've done with big dogs and cats - buy a plastic laundry basket - the kind that are long and wide instead of tall - cut a cat sized hole in the side - put it over the cat buffet. Put something fairly heavy on top.