I used this toothpaste years ago and never had a problem and the peanut flavor was actually brown in color, resembling peanut butter. Recently I bought a tube of Peanut Flavor at Petsense in Morristown. First thing I noticed was the toothpaste did not look like Peanut Butter, instead it was a dark green. I brushed my three dogs teeth with it. The next day two of my three dogs had diarrhea that lasted a couple of days. Did some research online and found others had complained about it now being green and giving their dogs diarrhea. Also found that this contains eucalyptus oil. Why? Eucalyptus oil is toxic to dogs. In the trash this tube of toothpaste went.