Study 1
Study type:
Clinical trial (double-blind, placebo-controlled)
Dose:
600 mg/day of Tongkat Ali with 1.45% eurycomanone
Participants:
32 men aged from 20 to 30
Duration:
2 weeks
Results:
The researchers observed steroidogenic effects after Tongkat Ali supplementation. No adverse side effects were observed.
600mg/day was correlated with significant increases in testosterone (15%), free testosterone (34%) and estrogen (30%) levels. The testosterone level was raised slightly above the normal human range. The authors concluded that 600mg/day of Tongkat Ali could have a positive impact on sports performance.
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