WASHINGTON, July 29 (UPI) -- Popular body-building products sold as nutritional supplements may contain steroids that produce acute liver injury and kidney failure, U.S. regulators said.
The Food and Drug Administration cited eight popular products from American Cellular Laboratories Inc., including Mass Xtreme and Tren Xtreme, that the agency said contain hidden and potentially hazardous steroids or "steroidlike substances."
The products are sold on the Internet and in some stores, the FDA said.
It did not tell consumers what other products to avoid. The FDA acknowledged it did not know how many products its warning affects.
It advised consumers "to stop taking body-building products from any manufacturer that claim to contain steroidlike substances or to enhance or diminish androgen-, estrogen- or progestinlike effects in the body."
In particular, the agency said consumers should not buy products using code words like "anabolic" and "tren" or phrases like "blocks estrogen" and "minimizes gyno."
Bodily damage can also include stroke and pulmonary embolism, or artery blockage in the lung, the FDA said.
The warning is part of a larger investigation into body-building products that contain hidden steroids, The New York Times reported.
