Guava is loaded with important compounds like:

Vitamin C

Potassium

Flavonoids (like quercetin)

These may help improve insulin sensitivity and reduce inflammation, which is linked to better blood sugar control.

4. Guava Leaves: Traditional Remedy

Guava leaves, used in tea form, have been studied for their anti-diabetic properties. Research suggests guava leaf extract can:

Lower blood glucose after meals

Inhibit certain enzymes that convert carbs into glucose

Improve insulin function