It goes by the names bitter squash and bitter melon as well. True to its name, it is said to have a very bitter taste. The Face Serum in Best Price. The Healing Tips. Regardless of its unpleasant taste, it is admired for its medicinal properties. Bitter gourd is a powerhouse of essential vitamins, minerals, nutrients, and electrolytes. It contains Vitamin A, C, and B (B1, B2), calcium, magnesium, Zinc, iron, and Phosphorus, which impart amazing health benefits, especially those associated with diabetes. There are a number of ways in which bitter gourd may be able to help with diabetes.