Water chestnut is a vegetable that grows in water. The seed has a mild sweet and bland taste. Water chestnut contains high amount of nutrients. It has very less calories. The fresh seeds have more nutrients than canned ones. It does not have any fat. The seeds are very beneficial for health. It helps in decreasing cholesterol and preventing cardiovascular disease. Water chestnut is very good for diabetics as it helps in controlling blood sugar levels. Since the seeds are rich in fiber, it is very beneficial for people who suffer from constipation. We will tell you about some benefits of this seed. Following are the 20 best benefits of water chestnut for skin, hair and health.