There are new concerns that some teens are going too far to get the perfect physique.
A new study finds more teens are using muscle-enhancing products.
NBC's Renee tessman reports.
Edina high school athletes want to be in top physical form.
so they're working out to bulk up.
Peter Heffelfinger / Edina Senior: "I think it's more of a pressure to be bigger and get that starting spot rather than look good."
now a new university of minnesota study in the journal pediatrics shows teens are doing more to add muscle.
in a survey of nearly 2800 minnesota teens, researchers found 34 percent of boys, and 21 percent girls used protein powders and shakes to bulk up, nearly 6 percent of boys and over 4 percent of girls reported using steroids.
and more than ten percent of boys and five percent of girls used other muscle enhancing products like creatine or human growth hormone.
Researchers say media images of athletes have become more muscular. Teens have access to muscle enhancing products. The concern is some of those products can have dangerous health effects.
Reed Boltmann / Edina Football Coach: "we don't endorse any supplements here. 65% should be carbs 20% fats, 20% protein and you can handle all that stuff with just a normal diet."