The jamun fruit is rich in fibre and it contains substances called jamboline and jambosine - both of which are known to delay the release of sugar into the blood.
Jamun seeds increase the availability of insulin. Let the seeds dry and make a powder that can be consumed regularly before meals to fight diabetes very effectively. Some studies suggest 10 gms of jamun seed powder once a day before food is effective in controlling blood sugar spikes.
OTHER HEALTH BENEFITS;
1)DIGESTION
Jamun seeds and Jamun are known to be used in Ayurveda,and Chinese medicine, for digestive ailments.
2)FOR BAD BREATH
Jamuns are good for treating curing bad breath. The pulp of a fruit is effective against gingivitis.(gum infections)
My take : jamun fruit and jamun seed powder can be used as good supplement for Diabetics. It is not a replacement to your lifestyle and diabetes medications.