I use these to give my Pug his medications. It's a soft treat that is open ended, so that you can stick the pill in there and the dog is none the wiser, as the fat little bastard just swallows whole. Anyway, up until today they were all beef flavored. The last I bought them they had only "duck and pea" flavor. I just opened it to give him his medicine - and that's the most offensive thing I've ever smelled! I had no choice but to give it to him as it's all I have left, but I'll damn sure be going back to Petco tonight to see if they got more in. I even just had to wash my hands as that nasty thing stayed on my hands. I can't even explain the horrible scent that came out of that bag when I unsealed it. The dog ain't getting them anymore as no way in hell I ever open that again. Well, maybe one more time, as I open it and stick it under the wife's pillow!