Which substance is listed as a Class 3 supplement?

Which substance is listed as a Class 3 supplement?

• A. Ephedra
• B. Ginseng
• C. Creatine
• D. Edhedra /DMAA

Answer: (D)

Class 3 supplements are substances that pose unacceptable safety risks for aircrew, typically due to powerful stimulants or unregulated ingredients that can spike heart rate, blood pressure, and core temperature or cause dehydration and other adverse effects in demanding flight conditions. The product described as ephedra with DMAA is the one flagged for these high-risk concerns; its stimulant properties have been linked to serious cardiovascular events, making it unsuitable for use by aviation personnel and commonly listed as Class 3. Creatine and ginseng, while they require consideration for interactions and individual health status, do not carry the same level of documented risk in this classification system, so they are not placed in Class 3. The emphasis here is on avoiding substances with significant safety concerns in flight, and the ephedra/DMAA-containing option fits that criterion.

Class 3 supplements are substances that pose unacceptable safety risks for aircrew, typically due to powerful stimulants or unregulated ingredients that can spike heart rate, blood pressure, and core temperature or cause dehydration and other adverse effects in demanding flight conditions. The product described as ephedra with DMAA is the one flagged for these high-risk concerns; its stimulant properties have been linked to serious cardiovascular events, making it unsuitable for use by aviation personnel and commonly listed as Class 3. Creatine and ginseng, while they require consideration for interactions and individual health status, do not carry the same level of documented risk in this classification system, so they are not placed in Class 3. The emphasis here is on avoiding substances with significant safety concerns in flight, and the ephedra/DMAA-containing option fits that criterion.