The present invention is directed to a novel use of bamboo on the promotion of bone length growth. More specifically, it is directed to a pharmaceutical composition, a food composition and/or an animal feed composition for promoting bone growth, comprising a bamboo as an effective ingredient. Further, it is also directed to a method for promoting bone growth, comprising administering to a subject in need thereof an effective amount of a bamboo. Since the composition of the present invention comprising bamboo as an effective ingredient is effective for promoting the growth of the growth plates and the long bones, it is effective for promoting the growth and the formation of skeletal frame in infants, children and teenagers during their growth period. In addition, the composition of the present invention is effective for the treatment of height growth solely or in combination with growth hormone therapies.
