[C4D]

My dogs’ poop will also change in color based on what protein they’re eating. I recall rabbit and venison as being the darkest in color and chicken being the lightest in color. I haven’t fed lamb in a while since one of the dogs reacts to lamb. Susan is right. You can rotate to another brand or protein to see if the color changes. Dark tarry stools are the ones that you need to watch out for.

Here is a link on the subject

http://www.epi4dogs.com/poopchart.htm