**WARNING**ICKY REPLY ALERT***
Okay, I know this is SO gross, but when my shih-tzu was a puppy, he had a terrible habit of eating his own poop (I know, I told you it was gross). Anyway, the vet had us sprinkle accent (msg seasoning) on it. He said that would make it less appealing. (if you're wondering, how to make something LESS appealing to something that would eat poop in the first place, I'm right there with you)!!
Anyway, that is what Sensa always reminds me of when I see them sprinkling it on foods in the commercial
I don't know what's in it, but it seems suspect to me.