Recent scientific investigations have established that bitter gourd (karela) is highly beneficial in the treatment of diabetes. It contains an insulin-like principle, known as plant-insulin which has been found effective in lowering the blood and urine sugar levels. It should, therefore, be included liberally in the diet of the diabetic. For better results, the diabetic should take the juice of about 4 or 5 fruits every morning on an empty stomach. The seeds of bitter gourd can be added to food in a powdered form. Diabetics can also use bitter gourd in the form of decoction by boiling the pieces in water or in the form of dry powder.