Evidence level — what the tags mean
Confidence in the underlying clinical research, not a safety rating.
High
Multiple Phase 2/3 RCTs, FDA approval, large patient populations, robust safety database.
Medium
Smaller RCTs or non-randomized human trials; some approved indications or international approval.
Low
Mostly preclinical/animal data with few or low-quality human studies and case reports.
Insufficient
No verifiable peer-reviewed human RCTs; vendor-research-only or unstandardized composition.
Evidence:
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