Mucuna Pruriens
Mucuna pruriens is a plant containing L-DOPA, the precursor to dopamine. There is no research on motivation or wellbeing in healthy people at the dose found in pre-workouts. Human research uses 5 to 30 grams of seed powder, in Parkinson's patients and in men with raised cortisol.
What the research shows
Mixed or small evidence. The effect is uncertain.
All the human research is on patients. Katzenschlager (2004) gave eight Parkinson's patients 15 and 30 grams of seed powder and mainly tracked levodopa levels in the blood and the motor response; Cilia (2017) did the same in 18 patients with advanced disease. Shukla (2010) saw lower cortisol and better semen quality in 60 infertile men under stress after 5 grams a day. Research into focus, motivation or mood in healthy people is missing.
Who it makes sense for: Nobody expecting sharpness or drive from it, because that has never been measured in healthy people. The 100 to 500 mg in a pre-workout is also a fraction of the grams used in the patient studies.
How we weigh evidenceClinical dosage
Origin
NaturalMucuna pruriens (velvet bean) is a tropical legume from India, Africa, and the Caribbean. It has been used for thousands of years in Ayurvedic medicine. The beans contain L-DOPA, a direct precursor to dopamine. In supplements as standardized extract.
Safety
The gap between research and practice is wide here: studies use 15 to 30 grams, supplements 100 to 500 mg of extract. At that low dose, efficacy has neither been shown nor ruled out. Do not combine with MAO inhibitors, antidepressants or Parkinson's medication.
For comparison
Mucuna is one of the few natural sources of L-DOPA, the same compound prescribed as medication (levodopa) for Parkinson's. The doses in pre-workouts are much lower than pharmaceutical doses. It may contribute to improved feelings of motivation and focus.
Dosage by weight and gender
The typical Mucuna pruriens extract dose (standardized to 15-20% L-DOPA) is 200-500mg per day. Body weight doesn't play a significant role. There are no gender-specific recommendations, though Shukla et al. (2009) specifically studied male subjects. Don't use for more than 12 weeks continuously without a break.
Frequently asked questions
What does Mucuna pruriens do?
Mucuna pruriens contains L-DOPA, a direct precursor to dopamine. It may increase dopamine levels, which could contribute to improved motivation, focus, and mood. In pre-workouts it's used for a mental boost and better drive during training.
Is Mucuna pruriens dangerous?
At typical supplement doses (200-500mg extract), Mucuna is safe for healthy adults. Because it contains L-DOPA that directly affects dopamine production, interactions with medications are possible. Don't combine with antidepressants or MAO inhibitors.
How much Mucuna per day?
200-500mg standardized extract per day (15-20% L-DOPA). Pre-workouts usually contain 100-300mg. Don't take it for more than 12 weeks continuously. Start with a low dose to see how you respond, L-DOPA is a powerful compound.
Scientific sources
The clinical dosages on this page are based on peer-reviewed research.
- Mucuna pruriens in Parkinson's disease: a double blind clinical and pharmacological studyKatzenschlager R et al. (2004)Funded by: Uitgevoerd in het National Hospital for Neurology and Neurosurgery in Londen; PubMed vermeldt geen belangenverklaring.
- Mucuna pruriens Reduces Stress and Improves the Quality of Semen in Infertile MenShukla KK et al. (2010)Funded by: Uitgevoerd aan de King George's Medical University in Lucknow; PubMed vermeldt geen belangenverklaring.
- Mucuna pruriens in Parkinson disease: A double-blind, randomized, controlled, crossover studyCilia R et al. (2017)Funded by: Uitgevoerd door openbare instellingen, met het Parkinson Institute van ASST Gaetano Pini-CTO in Milaan als hoofdlocatie; PubMed vermeldt geen belangenverklaring.
Pre-workouts with Mucuna Pruriens
No products found with this ingredient
We keep the dosages and values on this page as accurate as possible based on selected studies. New research may change these values. Nothing on this page is medical advice. If you have any doubts, always consult a doctor.