Hey Christie!
For Sadie I would stick with the Mint for her...
There aren't any artificial "flavorings" in either one of them... The only thing that you would even figure in as "flavor" would be the Natural Mint Extract. But I would avoid the Salmon oil in the other one with Sadie as I know how sensitive she is!
I'm glad you talked to your vet about it! Are you going to take pictures and enter Sadie in the "Before and After" Contest?? I've got good a pretty good number of people Tackling Tarter with me! I'm pretty excited to see these pictures!
