What are the risks of glucosamine causing diabetes, especially with the long term use 4 arthritis?

I have just been warned off this product by my Dr due to the concerns of causing diabetes. He has suggested shark cartlidge and high dosage of fish oil instead…… Well, … I’m confused. Does anyone know more about a possible link between taking glucosamine etc for arthuritis and an increase in the aging population [...] http://bit.ly/r4ogIS