By Board Certified Urologist Dr. Yana Barbalat
D-mannose is a sugar found naturally in many fruits and berries. However, unlike glucose, a sugar that we have all heard about, D-mannose is absorbed very slowly in the gut. This accounts for its low glycemic index, and therefore, its low impact on blood sugar levels and insulin release.
If you search the internet, you will find many popular medical sites with a disclaimer not to use D-mannose if you have diabetes. However, most recent scientific research shows that D-mannose is likely safe and may even be therapeutic in some patients with diabetes. More studies and research on D-mannose is still pending. If you have diabetes, I recommend checking with your healthcare provider prior to using any supplements.