It is a vegetable with a smooth, green skin when young, and may feature ridges or ridge lines that run across the skin of the fruit.
Sponge gourd is loaded with nutrients such as dietary fiber, vitamin C, vitamin A, riboflavin, zinc, thiamine, iron and magnesium. The Sponge gourd fruit has been found to have antioxidant, antibacterial and antifungal properties.
The Sponge gourd is used in various cuisines and traditional medicines. In the warm, southern areas of Japan, the fruit is used as a vegetable.