Greenies have been reformulated to be easier to digest. If you remember the "old" greenies were hard like plastic. You couldn't even bend them. Now they are easier to digest and much much softer.
If you didn't know, Mars Inc. purchased greenies just over a year ago. Mars had greenies reformulated to prevent the problems greenies caused in the past. Oh and Mars owns many pet foods including Pedigree, Nutro, Royal Canin, Sheeba, Wiskas. They also own the company that manufactures many of the "store" brand dog foods you find in grocery stories.
We feed our yorkies greenies (have been since the reformulation) and we haven't had a problem.
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Terrance & Eileen Ferragame |