How to Vet an Online Health Claim: A 7-Question Checklist

Pause before acting on a health claim

Health information is easy to find, but the National Library of Medicine says readers should evaluate what they see and discuss it with a health care provider before relying on it. A polished page or a large number of likes does not prove that a claim is accurate.

Use these questions:

1. Who runs the site or account? Look for the organization, author, and relevant qualifications.

2. What is the purpose? Is it mainly education, or is it selling a product or service?

3. Who funds it? Advertising and commercial relationships can influence what is emphasized.

4. Where does the information come from? Look for citations that lead to original guidance or research, not just other unsourced posts.

5. Is there a review process? A transparent editorial or clinical review policy is more informative than a vague claim of expertise.

6. When was it updated? Health guidance can change; check the date and whether references are current.

7. Does it promise a cure or use pressure? Dramatic guarantees and "works for everyone" language are reasons to slow down.

These questions do not prove that a page is wrong. They help identify what is missing and whether a claim deserves more checking.

Compare and bring questions to care

Compare important claims with government health agencies, medical schools, or established professional organizations. On social media, check the original source rather than trusting a screenshot or a repost. A study headline may omit its size, design, limitations, or funding.

Write down the claim and ask a clinician or pharmacist how it applies to your health and medicines. This is especially important before stopping prescribed care, starting a supplement, or following a restrictive diet. Online information can help prepare questions, but it cannot assess your personal medical history.

Sources and further reading

• Evaluating Health Information
• Online Health Information: What Can You Trust?

Health disclaimer

This article is for general education only. Its information and suggestions are not medical advice, diagnosis, or treatment and may not be right for everyone. Ask a qualified health professional for advice that fits your health, medications, and needs before changing your diet, exercise, supplement use, or care.