The point of adding it as a PRO is because I know what my rats eat. No chance they've been fed dog food with red dye in it. That piece of mind is very important IMO. I've also ordered F/T from online places when my colonies didn't quite do the job, but when I received them I noticed a big difference between my rats and theirs. The rats I've bought are packaged poory, have bloody noses and purple feet. Now that my colonies have grown substantially, I sell my excess rats to other snake breeders as well and I can tell you, none of mine look that way.