www.theanimalrescuesite.com has the following warning
Treats on sale in the US have caused harm to dogs. The harmful ingredient is nto yet known and the products have not been recalled.
The treats may be called chicken jerky, nuggets, or tenders. There is no recall to watch for, unfortunately. Although several people have
petitioned major companies to voluntarily recall the treats, the FDA cannot issue a mandatory recall without confirmed test results showing the cause.
Decreased appetite
Decreased activity
Vomiting
Diarrhea, possibly with blood
Increased water consumption
Increased urination
Take your pet to the veterinarian.
If the symptoms are severe or last more than twenty-four hours, take your pet to your veterinarian for evaluation. These symptoms are not unique, and your vet might find another cause. Diagnoses of kidney failure and Fanconi syndrome (sugar in the urine) are associated with the problem treats. With prompt treatment and good care, many pets recover.
According to
MSNBC, the three treats cited the most (although they aren't the only ones reported) are:
Waggin' Train (by Nestle Purina)
Canyon Creek Ranch (by Nestle Purina)
Milo's Kitchen Home-Style Dog Treats (by Del Monte)
The "made in China" label on pet treats, if present, may be small and out of the way - and to make things even more confusing, labels that contain the company's U.S. address, or phrases like "Distributed in the U.S.A." or "Manufactured in the U.S." may also be present on the package.