Q. Is it true that drinking coffee with caffeine from the age of 9 on up will stunt a young girl's growth and keep her short?
A. We could find no research to support this old wives tale. The Penn State Young Women’s Health Study found no connection between caffeine intake and height or bone strength (Journal of the American College of Nutrition, Oct. 1998). Caffeine has other undesirable effects in children, however, and may weaken bones in older people.