Adaptogen evidence brief
Maca is a Peruvian root supplement sold for energy, libido, mood, endurance, and hormone-related claims. The marketing often blends vitality claims with limited performance evidence.
Physical-performance evidence is emerging but still too small and mixed to support broad performance or testosterone claims.
Recent performance review and athlete trials are early; broader reviews do not support hormone claims.
Forms, colors, and extracts differ across studies; do not treat generic maca powder as equivalent to studied preparations.
Sexual-function or libido findings do not convert into testosterone, strength, or hypertrophy evidence.
Source Drawer
The score reflects evidence that the supplement does its stated job. Some jobs are direct, such as strength, endurance, or recovery; others are indirect, such as sleep, mood, appetite, or health support. A real effect can still receive a cautious practical rating when dose, safety, product quality, or audience fit remain uncertain.
Send the disputed claim, source link, and why it changes the practical verdict. Corrections that materially affect the claim, dose, caveat, or rating are prioritized.
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