Beware Sports Supplements!
They promise bigger muscles and better endurance. But sports supplements—over-the-counter pills, drinks and powders marketed as athletic boosters—can do more harm than good. “Many contain substances that are banned or unsafe above a certain level,” says Laura Dunne, M.D., a family and sports medicine physician at Lehigh Valley Health Network.
Sports-supplement use is rampant among teen boys lured by the chance to grow six-pack abs or be the team superstar. “They’re learning about supplements from bodybuilding magazines, other kids and even coaches,” says John Graham, director of Healthy You Fitness Centers. What users aren’t told is that the FDA doesn’t regulate these supplements. So untested products can be marketed in drugstores and online using false claims, tainted research and paid endorsements.
Substances to avoid include:
Creatine—This naturally occurring muscle-builder is sometimes added to protein and amino-acid supplements. “Without a foundation of good nutrition and adequate water intake, it can cause muscle cramps and kidney problems,” Graham says.
Steroid precursors—Substances like DHEA (dehydroepiandrosterone) and “andro” (androstenedione) are converted by the body into steroids (synthetic testosterone). They can cause aggressive behavior, stunted growth, and heart and liver damage.
Stimulants—Ephedrine and other stimulants give a temporary energy boost, but can raise blood pressure and heart rate and lead to dehydration and heat stroke.
Supplements are dangerous at any age, but especially for young users, who tend to underplay their health risks. “Monitor your child for signs of use, including increased aggression or acne, rapid weight gain, and muscle size out of proportion to peers,” Dunne says.
“If your child is taking a supplement, find out who advocated it,” Graham says. Check the label for banned substances (you can get a list at www.usantidoping.org), but be aware that products aren’t required to list all ingredients.
Talk with your child about the long-term effects of sports supplements. Discuss fair competition—taking them is like cheating. “While you can’t control the decisions of young adults over age 18, you can still point out the dangers,” Graham says. If they choose to use supplements anyway, these should carry the NSF label. (NSF International tests products for banned substances.)
Finally, athletes young and old should learn about healthier fitness alternatives. Food, not supplements, is the best source of protein and other vital nutrients, “and there’s no chance of getting added substances,” Dunne says. Likewise, strength training is better than supplements for muscle-building.
Published from Healthy You Magazine, January February 2010