RECALL: MERRICK & CASTOR POLLUX Treats - German Shepherd Dog Forums
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post #1 of 2 (permalink) Old 05-24-2018, 06:16 AM Thread Starter
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Merrick dog treats recalled due to elevated thyroid hormone
Merrick dog treats recalled due to elevated thyroid hormone | Food Safety News

Merrick Pet Care has announced a voluntary recall of certain Castor & Pollux and Merrick Backcountry dog treats after one of the products was found to contain elevated levels of beef thyroid hormone.

(Nestlé Purina PetCare Company purchased Merrick in 7/2015)

  • Castor & Pollux Good Buddy Prime Patties Real Beef Recipe, 4 oz. UPC 780872510806
  • Castor & Pollux Good Buddy Sausage Cuts Real Beef Recipe, 5 oz. UPC 780872510745
  • Merrick Backcountry Great Plains Real Beef Jerky, 4.5 oz. UPC 022808786160
  • Merrick Backcountry Great Plains Real Beef Sausage Cuts, 5 oz. UPC 022808786047
  • Merrick Backcountry Great Plains Real Steak Patties, 4 oz. UPC 022808786078
The recalled products were distributed in the United States through pet stores, grocery stores and online retailers. There also was some limited distribution in Canada.
The thyroid hormone likely came from animal gullets (laryngeal tissue) from which the thyroid glands had not been completely removed.

Last edited by Momto2GSDs; 05-24-2018 at 06:20 AM.
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post #2 of 2 (permalink) Old 05-24-2018, 11:36 AM
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So much for the buy-out not affecting quality!

For those who haven't been tracking the thyroid issue, this problem is a function of not being careful in the meat purchased and used in food production -- letting suppliers send them "whatever parts," or throwing "whatever parts" into the rendering vat.

If the meat includes part of the cow's thyroid gland, it is like putting a blast of thyroid hormone in the batch -- for dogs who have thyroid disease, that badly screws up carefully calibrated medicine levels by OD'ing them with too much thyroid hormone since they already are already getting very specific doses of it by RX. For healthy dogs who don't have thyroid problems, you can end up with temporarily elevated thyroid levels just from them eating this stuff -- if you happen to do your annual T4 screen while feeding this stuff, it may come back as elevated....which the vet will probably think it means your dog has a thyroid tumor if he/she doesn't know about this....and you'll have a needless cancer scare.

This link describes the symptoms of elevated thyroid hormone so people know what to look for:

This has been a problem with several brands in the last few years.
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Last edited by Magwart; 05-24-2018 at 11:49 AM.
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