Q: Are there other performance-enhancers being taken by teen athletes to make them more competitive?
A: Many start with protein powders such as creatine. It's a commonly used nutritional supplement, although there is no long-term data on how harmful it is to the kidneys. Teens may also use the hormone androstendione, which turns into testosterone in the body. These supplements may not be as dangerous as steroids, but it’s a slippery slope for young people to start to take them to play better or look better. They often move onto steroids or other types of drugs such as stimulants or diuretics.