Our Mission
Supplements Corner publishes evidence-based research on supplements. Our editorial policy is designed to ensure every article meets rigorous standards for accuracy, transparency, and usefulness.
Research Methodology
Literature Review
For every article, we begin with a comprehensive review of published scientific literature:
- Primary sources: We review peer-reviewed clinical studies, systematic reviews, and meta-analyses from databases including PubMed, Google Scholar, and the Cochrane Library
- Study hierarchy: We prioritize randomized controlled trials (RCTs) and systematic reviews as the highest-quality evidence, followed by observational studies
- Scope: We examine human studies whenever available; animal studies are noted but given less weight in recommendations
- Sample size: We consider study size, duration, and quality when evaluating evidence strength
Product Analysis
For product recommendations and comparison articles, we evaluate actual supplements:
- Dosage verification: We compare product dosages against clinically effective doses from the research literature
- Form and bioavailability: We assess whether the supplement form (e.g., magnesium glycinate vs. oxide) matches what studies support
- Third-party testing: We prioritize products certified by NSF International, USP, ConsumerLab, or similar independent bodies
- Ingredient scrutiny: We flag proprietary blends, unnecessary additives, and potential contaminants
- Manufacturing standards: We note GMP (Good Manufacturing Practice) certification and facility quality when available
Evidence Rating System
We classify supplement evidence using these categories:
- Strong Evidence: Multiple RCTs or meta-analyses showing consistent benefits
- Moderate Evidence: Several quality studies with generally positive results, though some inconsistency
- Weak Evidence: Limited studies, small sample sizes, or mixed results
- Insufficient Evidence: Very few human studies or conflicting findings
How Products Are Selected
Independence
Our product recommendations are made entirely independently:
- We never accept payment for positive reviews or placement
- Brands cannot pay to be featured on Supplements Corner
- We do not allow sponsored content or native advertising
- Product selections are based on research and testing, not commercial relationships
Selection Criteria
When recommending products, we evaluate:
- Effectiveness: Does the product meet the dosage from supporting research?
- Quality: Is it third-party tested and manufactured to high standards?
- Value: Is the price reasonable relative to quality?
- Availability: Can readers easily purchase it?
- Safety: Are there known interactions or concerns?
What We Don't Recommend
We exclude products that:
- Make unsupported health claims
- Contain prohibited or dangerous ingredients
- Lack third-party testing certification
- Have poor manufacturing practices
- Are prohibitively expensive for equivalent products
Affiliate Relationships
Full Disclosure
Supplements Corner participates in the Amazon Associates affiliate program. When readers purchase products through our links, we may earn a commission at no extra cost to them. This relationship does not influence our recommendations.
How It Works
- We research and recommend products based on evidence first
- We then check whether affiliate links are available for our top picks
- If the best product doesn't have an affiliate program, we recommend it anyway
- Every affiliate link is clearly disclosed
Transparency
Every article containing affiliate links displays a disclosure statement. Readers always know which links generate commission.
How Rankings Work
Ranking Criteria
In comparison articles, products are ranked by:
- Effectiveness (40%): How well does it match clinical research evidence?
- Quality (35%): Manufacturing standards, third-party testing, ingredient purity
- Value (15%): Price relative to quality and dosage
- Availability (10%): How easy is it for readers to purchase?
Tie-Breaking
When products score similarly, we prioritize:
- The product with strongest third-party testing credentials
- The product with the cleanest ingredient list
- The product with the most transparent company
Handling Mixed or Limited Evidence
When research is unclear or conflicting, we:
- Explicitly state the evidence is mixed or limited
- Explain which studies support which conclusions
- Avoid making strong recommendations without supporting evidence
- Note when a supplement may work for some people but not others
- Distinguish between "no proven benefit" and "proven to be ineffective"
Updates and Revisions
Update Frequency
We review and update articles annually at minimum, or sooner if:
- Significant new research is published
- Products we recommend are discontinued or reformulated
- New safety concerns emerge
- Readers report errors or outdated information
Version History
Major content updates are noted in articles so readers understand when information was last reviewed.
Author Qualifications
Articles are researched and written by contributors with backgrounds in:
- Nutrition science and dietetics
- Biochemistry and pharmacology
- Healthcare and medicine
- Science communication
- Health journalism
All contributors are required to disclose relevant expertise, credentials, and potential conflicts of interest.
Corrections and Feedback
Error Reporting
Found an error or outdated information? We take corrections seriously. Contact us at contact@supplementscorner.com with:
- The article title and URL
- The specific error or concern
- Supporting evidence if applicable
Response Time
We aim to respond to correction requests within 5 business days. Verified errors are corrected and noted in the article update history.
Medical Disclaimer
Supplements Corner provides educational information only. Our articles are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a healthcare provider before:
- Starting a new supplement regimen
- Taking supplements with medications
- Using supplements if you have a medical condition
- Changing your supplement routine
Supplements are not FDA-approved medicines and their effects vary by individual. Individual results may differ from research findings.
Contact Our Editorial Team
Questions about our methodology, editorial standards, or a specific article?
Email: contact@supplementscorner.com
We read every email and typically respond within 7 business days.