Career
Jung"s popularity has since spread to other Asian regions. She has become a fitness phenomenon in Japan, following her appearance on Nippon Hōsō Kyōkai by the year 2004 and her books on diet have become bestsellers. Her second book "Momjjang Diet Premium" sold 200,000 copies in just two weeks after publication in Japan.
The success of her books was followed by Mom-chan Diet Wii Figureobics by Jung Da-Yeon, a fitness game released by Wii in December 2010.
Jung also starred in a series of television commercials for Hong Kong-based retail chain Mannings, in which she trains with an overweight cat mascot.
