Skip to content
My WebMD Sign In, Sign Up

Fitness & Exercise

Font Size

Andro May Contain Unwanted Surprise.


Despite the controversy, the FDA allows andro and related products to be sold over the counter at health food stores, gyms, and grocery stores.

"We've seen a large rash of athletes testing positive for 19-norandrosterone in the last few years," Catlin says. "Many claimed they didn't take anything, but later admitted that they'd used andro or something similar."

Cynthia Kuhn, PhD, of Duke University Medical Center in Durham, N.C., reviewed the report for WebMD. She says the levels of nandrolone found in the andro capsules are not enough to be medically hazardous. But the important point is that actual contents of the supplements differ from what is advertised, she tells WebMD.

"This has been often speculated, but rarely tested," says Kuhn, who is professor of pharmacology in the department of pharmacology and cancer biology, and has written a book about supplements. "What is in these supplements is not what the advertisers say, and there are trace elements that can cause athletes trouble."

She says, "These supplements are drugs, even if people don't think of them as drugs."

The National Institutes of Health, the NFL, NCAA, U.S. Olympic Committee, Major League Baseball, and the Major League Baseball Players Association supported the study by Catlin's group at UCLA.


Healthy Living Tools

Ditch Those Inches

Set goals, tally calorie intake, track workouts and more, all via WebMD’s free Food & Fitness Planner.

Get Started

Today on WebMD

Wet feet on shower floor tile
Flat Abs
Build a Better Butt Slideshow
woman using ice pack

man exercising
7 most effective exercises
Man looking at watch before workout
Overweight man sitting on park bench

pilates instructor
jogger running among flowering plants
woman walking
Taylor Lautner