Quote Originally Posted by lv4dogs
I've never heard that, maybe I'll have to try my crew with no flea prevention & see what happens.
It's because fleas prefer a less than healthy host. I guess maybe a truly healthy dog doesn't taste good?

Nova's immune system has been compromised by vaccines, and she has gotten the occassional flea. Nothing for alarm, but the other dogs haven't had a single flea since switching to raw.