I don't know if I was unclear or not but the 60 minutes story was on HUMAN glucosamine and chondroitin, NOT veterinary! They looked at average purchased supplements at places like Safeway, Costco, Walmart, etc...
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Christopher A. Lee, DVM, MPH, Diplomate ACVPM
Preventive Medicine Specialist With a Focus on Immunology and Infectious Disease
myvetzone.com
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