http://www.webmd.com/osteoarthritis/news/20040603/excess-vitamin-c-worsen-osteoarthritis

I wonder about this and the implications in dogs. I am reading up on stuff for Kayos and came across this.

I wouldn't jump to conclusions.

There's been a boatload of so-called studies to discredit supplements that are poorly controlled and poorly evaluated, that I don't trust it until all the nitty gritty details are out. I am looking forward to ready the article, but I hold it with a high degree of skepticism from the start, unless we are talking about some very narrow situations.

Big Pharma and the big industries are out to kill supplemnets, they have been working on joint supps for a long tim.

Btw, NsAids increase the degeneration of cartilage - don't remember the last time I heard of a vet or doc cautioning their patients about that...

This is not the original article: From Duke University
Study was sponsered by the Arthritis Foundation and National Institutes of Health.

Here's the journal article: Ascorbic acid increases the severity of spontaneous knee osteoarthritis in a guinea pig model