"Potentially fatal hyperthyroidism"

http://www.foodsafetynews.com/2017/03/fda-alerts-consumers-vets-to-watch-dogs-for-hyperthyroidism/#.WORMZm_ysr-

The recall on those happened on Mar 18, but it's always good to be reminded. Anyone feeding either of those brands of wet food shouldn't - check the best by date and upc and get a replacement.

Regrettably this is one of those cases where something that isn't approved for human consumption is allowed in pet food.

I wonder how many other foods this is in that we just don't know about because it's to a smaller level and doesn't trigger our dogs as severely. I've never thought about it because I've never fed canned dog food.