As part of the diet for diabetics, Black Plum are one of the fruits that a diabetic can eat without hesitation. It is an evergreen tropical tree in the flowering plant family Myrtaceae native to India. The fruit has a combination of sweet, mildly sour and astringent flavor and tends to color the tongue purple. The Black Plum is also used in various alternative healing systems like Ayurveda (to control diabetes, for example), Unani and Chinese medicine for digestive ailments. Wine and vinegar are also made from the fruit. It has a high source in vitamin A and vitamin C. Diabetics are advised to consume 1 tsp of this Black Plum Powder in empty stomach early morning after advice from the physician.