June 16, 2011
Beware - Your Supplement Could Cause a Positive Test
This advisory comes
after multiple announcements that athletes around the world have tested
positive for methylhexaneamine, a prohibited stimulant. Methylhexaneamine is
known by many names including 1,3-dimethylamylamine (DMAA), dimethylpentylamine
(DMP) 4-methylhexan-2-amine, Geranamine, and geranium oil, extract, or stems
and leaves. Many products sold as dietary supplements openly list this
substance on their labels, such as Jack3d (USP Labs), Lipo-6-Black and
Hemo-Rage Black (Nutrex), Spriodex (Gaspari Nutrition), F-10 (Advanced
Genetics), Clear Shot (E-Pharm), 1.M.R. (BPI Sports) and many others.
While it is not known whether the above products actually contain
methylhexaneamine, athletes should steer clear of products that advertise to
contain these substances.
Also, if "geranium" is listed as an ingredient on the label of a
supplement, be advised that the product may contain synthetic
methylhexaneamine. We have also seen instances where a supplement actually
contained ingredients that were not listed on the label. In some cases, these
non-labeled substances may trigger a positive test.
Athletes are also advised to exercise good judgment and avoid products with
suspicious and exaggerated claims or names, which include marketing performance
terms such as "stacked," "muscle," "mass,"
"tren," "bol," "anabolic" or "legal
steroid," "power," "blast," "energy,"
"stimulant" and similar terms. The product may in fact be a designer
steroid or contain a prohibited substance, such as the prohibited stimulant
The ongoing problem of dietary supplement mislabeling continues to create a
risky environment for athletes. Unfortunately, due to the current permissive
regulations governing the supplement industry, USADA cannot give guarantees to
athletes regarding which products are safe and free from contamination.
Athletes need to be aware that they assume the risks of adverse health outcomes
and positive anti-doping tests when choosing to take supplements. Athletes are
urged to take necessary steps to be informed consumers and evaluate any
supplements, including: understanding all ingredients, consulting with a
physician to assess whether taking a supplement is necessary, and having
products tested to ensure safety. Please remember that strict liability applies
at all times, and an athlete is responsible for any prohibited substance found
in their system.
USADA continues to work with our partners at Supplement Safety Now, which is a
public initiative, to protect Americans whose health is threatened by the
consumption of dangerous over-the-counter products disguised as
"healthy" supplements. Go to www.supplementsafetynow.com and join the effort.