Good Morning!
Thank you for being a wise consumer and seeking professional advice prior to ending up in the Emergency Room or worse. Let me explain why this product is banned in Britain and its component, DMAA, is banned in US:
A sports supplement popular with fitness fanatics has been banned in Britain because of fears it may have lethal side-effects. The drink Jack3D, which contains a stimulant known as DMAA (
dimethylamylamine) that has been linked to
high blood pressure,
headaches,
vomiting,
stroke and even a death therefore making it unsafe and possibly dangerous to ingest or inhale.
The product also contains "yohimbe", a well known herbal stimulant along the lines of a "super caffeine".
More than likely the dangerous side-effects of the above chemicals in your supplement were responsible for the sharp pains you felt through your chest. If you were my patient I would have you discontinue this product right away for safety reasons and if any further episodes occur see your doctor immediately for a blood work up and advice. I am positive in my thinking that once you discontinue this product,however, your side-effects will go away.
If, by the time you get this answer, you have been using it for some time, please consider a cardiac work up and other tests as deemed necessary by your personal physician.
My sincerest regards, Kathryn J. Shattler, MS,RDN