Bottle gourd is low in calories and provides small amounts of vitamin C, folate, calcium, iron, zinc and B vitamins. It is also rich in fiber and is believed to help aid in healthy digestion. The juice of this variety is touted for its vitamin C and zinc content as well as for its ability to potentially regulate blood sugar levels. Besides, Bottle gourd can be short and round, uniformly cylindrical, curved, bulbous, or extremely long and thin. In addition, its coloring can vary from a light green or chartreuse to dark green. Young Bottle gourd is used most often in cooked applications, as it can be sautéed, fried, pickled or grilled.