One of the issues we were faced with as I audited manufactures in China of ingredients for the nutraceutical industry is the requirement of traceability. Given the dynamics in regional communities, small slaughter houses and local village butchers, animal carcasses (swine) would be collected by families, transported to local manufactures (non-GMP) where “crude” preparations where extracted, then resold to GMP “workshops” were the materials were reconstituted and further processed. In my personal experience, very little if any paperwork was available demonstrating the “traceability” of said finish ingredients. I am speaking specifically of chondroitin sulfate and glucosamine HCl. All FWIW.
Reason being as you cited, cost, cost, cost :-)
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