Is it safe to take glucosamine supplements if I have diabetes?

Answers from Brent A. Bauer, M.D.

Even though glucosamine is technically a type of sugar, it doesn't appear to affect blood sugar levels or insulin sensitivity. Some preliminary research had suggested that glucosamine might worsen insulin resistance, which can contribute to increases in blood sugar in people with type 2 diabetes. But subsequent studies refuted these findings.


While glucosamine doesn't appear to affect glucose levels or insulin sensitivity, the supplement can interact with other medications you might be taking — such as warfarin (Coumadin, Jantoven), a blood thinner. As with any dietary supplement, talk to your doctor before you add glucosamine to your daily regimen.

Nov. 11, 2014