I had bought Yogis once for my ferrets that were Cranberry flavoured. And of course, out comes red stool. I didn't connect it at the time because I was so concerned about the babies being sick that I had my husband drive to the vet on his lunch break, plastic baggy in tow, to have the vet take a look. I don't know about the dye in twizzlers but the Yogis sure colour things (including the carpet in front of the litter box!). Heather [Posted in FML issue 4089]