I was at a pet food store the other day geting some donations for the club and I was talking to the owner about food and we got on the topic of beet pulp. She used to feed Nutro to her dogs until they changed the ingredients and added beet pulp to it. She said that it was turning her tri shelies black to have a shade of red in it. So it got me thinking of why my black dog - was as a pup then turned seal - is getting redder.
Now I know it is used as a stool hardener, but I was wondering if any one else has heard of this?