About The Supplement Guide
The Supplement Guide is an independent editorial site covering nutritional supplements — vitamins, minerals, herbal extracts, sports nutrition, and specialty formulations. We are not a supplement manufacturer, retailer, or medical provider.
Our Story
Two Decades of Supplement Coverage
The Supplement Guide launched in 2004, when the supplement industry was a fraction of its current size and independent product information was hard to find. Most supplement content came from the manufacturers themselves or from magazine ads dressed up as editorial. We started as a simple directory of supplement categories with user-contributed reviews and ingredient profiles.
Over 20 years, we've expanded into a full editorial resource covering 12 health categories — from men's and women's care to sports nutrition, cognitive health, and anti-aging. Our approach has evolved with the science: we now prioritize published clinical research, third-party testing data, and label transparency over anecdotal reports.
What We Stand For
How We Evaluate Supplements
Our evaluation criteria are consistent across all categories:
- Evidence Base: Does the active ingredient have clinical research supporting its claimed benefits? We look for peer-reviewed studies, not manufacturer-funded white papers.
- Label Accuracy: Does the product contain what it claims? We prioritize brands that use third-party testing (USP, NSF, ConsumerLab).
- Dosing: Is the dose clinically relevant? Many products include researched ingredients at doses too low to have any effect.
- Transparency: Does the brand disclose its full ingredient list, including fillers and excipients? Proprietary blends that hide individual ingredient amounts are a red flag.
- Value: Is the price justified by ingredient quality and dosing? We flag premium pricing on commodity ingredients.
We apply these criteria equally to products we like and products we don't. No supplement gets a pass because it's popular or because we have a business relationship with the brand.
What We Don't Do
Disclosures and Limitations
The Supplement Guide may earn revenue when readers purchase products through links on this site. This does not influence our editorial assessments.
We are not medical professionals. Nothing on this site constitutes medical advice. Dietary supplements are not FDA-approved for the diagnosis, treatment, cure, or prevention of any disease. Always consult a healthcare provider before starting any supplement regimen, especially if you take prescription medications or have a medical condition.
Our reviews reflect editorial assessment at the time of publication. Product formulations, ingredient sourcing, and brand practices change. We update content when we become aware of material changes.