In a controlled study
glucosamine with
chondroitin had no effect on the glycaemic
control of patients taking oral
antidiabetics, but one report notes that unexpected increases in blood glucose levels have occurred.
It may be prudent to increase monitoring of blood glucose if
glucosamine supplements are taken. Also, if glucose
control unexpectedly deteriorates, bear in mind the possibility of self-medication with supplements such as
glucosamine.