Martial arts instructor Nguyen Kim Tuan, born in 1963 in Dong Thap province, Vietnam, began studying martial arts when he was only 6 years old.
Since 1980 he began the practice of peeling coconut with his teeth. He now peels a coconut with his bicuspids without hands in 2 minutes. However, when Nguyen Kim Tuan held the fruits, he peeled off 3 coconuts in 58 seconds. Furthermore, he can peel a coconut with bare hands, drag a truck, and hammer nails with his head.