A chemical connected to methamphetamine has been found in Craze.(Photo : Creative Commons )

Craze, an exercise supplement has been found to have a chemical connected to methamphetamine ABC News reported on Monday.

"With supplements, it's really the wild, wild west," Dr. Richard Besser, ABC News chief medical editor said.

The discovery comes from a report put together by researchers from the global public health organization NSF International, Harvard Medical School, and National Institute for Public Health and the Environment.

Dr. Cohen, an internist at Cambridge Health Alliance in Somerville, Mass. and his team of researchers experimented with two samples purchased online, and one store-bought.

"I think they're playing with stimulants to try and find something that will get people juiced up, revved up to work out and make them feel better," Dr. Cohen, an internist at Cambridge Health Alliance in Somerville, Mass. told ABC News.

Researchers have named the product "a potentially dangerous designer drug," and unsure of the impact it will have on the human body or what test results will reveal. Users are warned that the product, which is sold throughout the United States does not have the ingredient listed on its labeling ABC News reported.

"Driven Sport...has extensively studied and analyzed Craze with the assistance of a DEA registered laboratory and those studies have consistently indicated that Craze does not contain amphetamines or controlled substances," Driven Sport, the manufacturer of Craze, said in a statement on the company's website. "As part of our additional studies, however, we have been working very hard to figure out why others have been concluding that Craze contains amphetamine like substances.

"Extensive analytical work by a DEA registered lab in Michigan and a Swedish laboratory retained by Driven Sports indicate the presence of n-beta depea in Craze. This is a related but very different substance from the one identified by NSF. It is also very difficult to distinguish these two substances unless you know precisely what you are looking for and are using the proper test methodology," it said.