Our Evidence Tier System makes complex research actionable.
Consistent, high-quality studies prove effectiveness.
Example: Vitamin D for bone health
Promising but limited by small sample sizes or short-term trials.
Example: Omega-3s for heart health
Early-stage research suggests potential, but more data needed.
Example: Curcumin for inflammation
Red flags for recalled brands or dangerous interactions.
Prioritize brands with third-party testing and clean labels.
Avoid nutrient overlaps (e.g., doubling vitamin D doses).
Every supplement ranking is based on rigorous scientific analysis, not marketing claims. We continuously update our rankings as new research becomes available, ensuring you always have access to the most current and reliable information.