Some of the warnings put up are super excessive, it just gets annoying. Basically, any sort of beneficial chewy can harm a dog that is known to gulp and/or is not supervised. As sad as it is that those dogs died, millions of dogs have died from gulping WATER, its a horrible accident. If those owners had been sitting there watching their dog eat the Greenie, there probably wouldn't be so many accidental deaths.

I just read my package. Greenies are made mostly of "Processed wheat glutin" and Chlorophyll. Not the greatest ingredients, but if you're feeding you dog a couple of them a week along with high quality kibble it's no big deal. It says on the package to give Greenies Li'l Bits and NOT whole Greenies to dogs that "gulp" chewies and to dogs under 10 lbs. Anything can be fatal for dogs that gulp food instead of chewing ~ even kibble can cause fatal bloat/choking in dogs that gulp. Either way, Gonzo is addicted so it's too late to turn back now! When I got out the Greenie package, he immediately started dancing around waiting for one ^.^ I notice that if I procrastinate about getting more when we run out, his teeth look noticably nastier. For me, the benefits outweigh the slight chance that these may harm him, and he gets one before going to bed so he's ALWAYS closely supervised.

Finns Mommy ~ There's also a different product I've bought before (I think it's called Nutrident, its at Petsmart) that has the EXACT same ingredients as Greenies, but costs half as much. Greenies have about doubled in price since we started getting them a couple years ago... kinda sucks