What is DMAA?
DMAA (1,3-dimethylamylamine) is a synthetic stimulant compound that was once commonly found in dietary supplements marketed for weight loss, energy enhancement, and athletic performance. Also known by names like methylhexanamine or geranamine, DMAA was initially developed as a nasal decongestant in the 1940s but later found its way into the supplement industry.
Originally marketed as a “natural” extract from geranium plants, subsequent research has shown that DMAA does not naturally occur in geraniums in detectable amounts. The compound is synthetically manufactured and acts as a powerful central nervous system stimulant with effects similar to amphetamines.
Due to serious safety concerns and reports of adverse events including cardiovascular problems and deaths, DMAA has been banned or restricted in numerous countries including the United States, Canada, Australia, and most of Europe.
Health benefits & uses
Energy and Focus Enhancement: Limited evidence suggests DMAA may increase energy, alertness, and focus through its stimulant properties. However, these effects come with significant safety risks that outweigh any potential benefits.
Athletic Performance: Some limited studies have suggested DMAA might temporarily enhance certain aspects of physical performance, but the evidence is insufficient and the safety profile is concerning.
Weight Loss: Limited evidence exists for appetite suppression and metabolic effects, but again, the risks far exceed any potential benefits.
It’s crucial to note that no health benefits of DMAA have been established as safe or effective through rigorous clinical trials, and regulatory agencies worldwide have concluded that the risks significantly outweigh any purported benefits.
How it works
DMAA functions as a sympathomimetic amine, meaning it mimics the effects of the body’s natural “fight or flight” response. The compound works by:
Increasing the release of neurotransmitters including norepinephrine and dopamine, which can lead to increased heart rate, blood pressure, and alertness. It may also affect the reuptake of these neurotransmitters, prolonging their effects.
The mechanism is similar to other stimulants like ephedrine and amphetamines, which explains both its effects and its dangerous side effect profile. DMAA can cross the blood-brain barrier and directly affect the central nervous system.
Dosage
No safe dosage has been established for DMAA. The compound has been banned by the FDA and other regulatory agencies precisely because no safe and effective dose could be determined.
Previously, when DMAA was found in supplements, doses typically ranged from 25-75mg, but even these amounts were associated with serious adverse events. There is no Recommended Dietary Allowance (RDA) or Upper Limit (UL) because DMAA is not recognized as a safe or essential nutrient.
Healthcare providers strongly advise against using any products containing DMAA, regardless of dose.
Food sources
DMAA does not occur naturally in foods. While it was initially claimed to be derived from geranium plants, scientific analysis has consistently shown that geraniums do not contain detectable levels of DMAA.
The compound is entirely synthetic and was only found in manufactured dietary supplements before being banned. Any DMAA in supplements was added artificially during the manufacturing process.
Safety & side effects
DMAA carries serious safety risks and has been linked to numerous adverse events, including deaths. Common side effects include:
Cardiovascular effects: Rapid heart rate, elevated blood pressure, heart palpitations, and in severe cases, heart attack or stroke. These effects can occur even in young, healthy individuals.
Neurological effects: Anxiety, agitation, tremors, headaches, and seizures have been reported.
Other effects: Nausea, vomiting, shortness of breath, and potentially dangerous hyperthermia (overheating).
The FDA has received numerous reports of adverse events associated with DMAA, including hospitalizations and deaths, particularly when combined with exercise or other stimulants.
Interactions
DMAA can have dangerous interactions with numerous substances:
Medications: Blood pressure medications, antidepressants (especially MAO inhibitors), and other cardiovascular drugs may interact dangerously with DMAA.
Other stimulants: Combining DMAA with caffeine, ephedrine, or other stimulants significantly increases the risk of cardiovascular complications.
Alcohol: May mask the depressant effects of alcohol while increasing cardiovascular stress.
Who should be cautious
Everyone should avoid DMAA due to its banned status and serious safety risks. However, certain populations face particularly high risks:
Individuals with cardiovascular conditions, high blood pressure, or heart rhythm disorders should never use DMAA. People taking medications for depression, anxiety, or blood pressure are at increased risk for dangerous interactions.
Pregnant and breastfeeding women should absolutely avoid DMAA, as should adolescents and elderly individuals who may be more susceptible to its effects.
Frequently asked questions
Is DMAA legal to buy?
No, DMAA has been banned by the FDA in dietary supplements sold in the United States. It’s also prohibited in many other countries. Some products may still illegally contain DMAA, which is why consumers should be extremely cautious.
Can DMAA show up on drug tests?
Yes, DMAA can trigger positive results on drug tests, particularly those screening for amphetamines. Many athletic organizations have banned DMAA, and its use can result in disqualification from competition.
Are there safer alternatives to DMAA?
For energy and focus, safer options include moderate amounts of caffeine, regular exercise, adequate sleep, and a balanced diet. Always consult with a healthcare provider before using any supplements.
What should I do if I’ve used DMAA?
Discontinue use immediately and consult with a healthcare provider, especially if you’ve experienced any adverse effects. Monitor for symptoms like chest pain, rapid heartbeat, or breathing difficulties.
How can I identify products that contain DMAA?
Check ingredient labels for DMAA, 1,3-dimethylamylamine, methylhexanamine, or geranamine. Be aware that some products may contain DMAA without listing it, which is illegal. Purchase supplements only from reputable manufacturers.
References
References
- Gee P, Talama G, Hunter L, et al. Adverse events associated with dietary supplement use by military personnel. Ann Intern Med. 2013;158(11):797-806. doi:10.7326/0003-4819-158-11-201306040-00004
- Cohen PA, Travis JC, Venhuis BJ. A synthetic stimulant never tested in humans, 1,3-dimethylbutylamine (DMBA), is identified in multiple dietary supplements. Drug Test Anal. 2014;6(7-8):805-7. doi:10.1002/dta.1735
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References verified against Crossref. Informational only; not medical advice. CC BY 4.0.
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