Wax gourd is almost the lowest calorie vegetable you can think of. Wax gourd contains 97g water per 100g, and the amount of fat and protein is almost negligible. Dietary fiber is also relatively low, only about 0.7g, and potassium content is not so good, only 80 mg. Among all kinds of vitamins, the only one that can be obtained is probably 16mg of vitamin C.