Hormone-related claims evidence brief
Boron is a trace mineral marketed for testosterone, free testosterone, bone health, and inflammation-related claims. Hormone claims are the main commercial hook.
Bodybuilding trial data do not support strength, lean-mass, or testosterone claims in healthy male lifters.
7-week bodybuilder trial: 2.5 mg/day changed neither testosterone, lean mass, nor strength.
Supplement doses vary by product and are not a proven hormone intervention.
Biomarker changes in small or non-athlete studies do not translate into muscle-gain or strength outcomes.
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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