30 Supplements · Evidence-Based · Free

Supplement ROI Calculator

Is your supplement spend justified by the science? Enter any supplement and your monthly cost to get an evidence-based ROI score, cost-per-evidence-point metric, and personalized interpretation.

30
Supplements
0-100
ROI Score
3
Free Analyses
Step 1 — Select Supplement
Evidence Grade
--
40% weight
Effect Size
--
35% weight
Population Match
--
25% weight
Cost Per Evidence Point Monthly cost divided by ROI score. Lower is better value.

How the ROI Score Works

40%
Evidence Grade
Based on published human RCT quality: A (randomized controlled, replicated) through D (theoretical or animal only).
35%
Effect Size
How large the measured effect is in humans: Large, Moderate, Small, or Minimal, calibrated to standardized effect size conventions.
25%
Population Match
How closely your age range and health goal align with the population studied in primary trials. Higher match = higher score.
Score Ranges
85-100 High Evidence ROI
70-84 Solid Evidence ROI
50-69 Moderate Evidence ROI
30-49 Low Evidence ROI
0-29 Very Low Evidence ROI

Educational use only. ROI scores reflect published evidence grades and reported effect sizes — not personalized medical recommendations. Evidence tiers reflect published human RCT data as of Q2 2026. Consult your physician before starting any supplement or protocol.