If in doubt ring your GP and ask
found this from seven seas themself when replying to an enquiry about diabetics using it
SevenSeasLife says:
Glucosamine which, upon digestion, does release a small quantity of glucose (a diabetically-active sugar) into the bloodstream. However, the quantities of glucose released from glucosamine are in less than one gram for a product which provides 1500 mg of Glucosamine and, in most cases, there is insufficient glucose released from the glucosamine to initiate any diabetic response.
In fact most diabetics are able to handle small quantities of glucose released such as this without any ill-effects.
However if you have any concerns about your personal levels, we would recommend that you seek the advice of your general practitioner, who is fully aware of your medical history and best placed to advise you on this matter.