Evaluating Health Information

Health information is easy to find. But finding reliable health information takes a little effort. Some of the health information you get from newspapers, magazines, books, TV, the Internet, and social media is up to date and trustworthy. But some is not. That's why it's important to evaluate health information for yourself.

But how can you tell the good from the bad? There are two key steps:

• Ask questions before you trust what you read or hear.
• Discuss the information you find with your health care provider before you rely on it. You may have found good information, but your provider can tell you whether it's good for you.

How can I evaluate health information on the Internet?

Asking a few questions will help you decide if you can trust a website. You can usually find most of the answers on the site's "About Us" page. If you can't find information about who runs the website, the site may not be trustworthy, and their health information may be unreliable. Some questions to ask are:

Who runs the site? Can you trust them to provide balanced, accurate information? Trustworthy sites provide a way to contact the owners with questions or feedback.

• Federal government agencies.
• Medical schools.
• Large professional or nonprofit organizations. For example, the American College of Cardiology (a professional organization) and the American Heart Association (a nonprofit) and are both reliable sources of information on heart health.

• Inform the public?
• Sell products or services?
• Promote the opinions of a person or group?

• If the site is funded by ads, they should be clearly marked as advertisements. Watch out for ads designed to look like neutral health information.
• If a business pays for the site, the health information may favor that business and its products.

• How is the information selected and reviewed to make sure it's accurate?
  Check the "About Us" page to see if the site has:
  • An editorial board of health experts
  • A content review process
  • A selection policy for content
  • Information about their writers' qualifications, which may be listed at the bottom of the articles

  When you find a website that seems to be trustworthy, don't stop there. Look to see if other reliable sites have similar health information.

  How can I evaluate health information on social media?

  A social media post may come from someone you know, but that doesn't guarantee it's good information. Many of the questions you use to evaluate a website also work for social media too. Ask where the information comes from, why it exists, and if anyone is funding it.

  If you're not sure whether the information you see on social media is trustworthy, don"t share it with others.

  How can I evaluate health stories in the news?

  Some news stories about medical research may not include all the facts you need to know. Ask these questions:

  • Does the story say whether the research involved people or animals?
  • If it was people, how many people were in the study and who were they?
  • How long was the study?
  • What type of study was it?
  • Who paid for the research?

  If you learn a few tips for understanding medical research, you'll be able to decide if a news story may apply to your health. Then you can discuss the information with your provider.

  How can I evaluate health information in books?

  To evaluate health information in books, ask:

  • How old is the book?
  • Is the author an expert on the subject?
  • Does the book offer different points of view or just those of the author?
  • Has the book been reviewed by other experts?
  • Does the book list the sources of the content?

  After you evaluate health information, talk with your provider before using it to make decisions that may affect your health.

  NIH: National Library of Medicine

  Start Here

  • Community Toolkit for Addressing Health Misinformation (Surgeon General) - PDF
  • Evaluating Internet Health Information: A Tutorial from the National Library of Medicine (National Library of Medicine) Also in Spanish
  • Finding and Evaluating Online Resources (National Center for Complementary and Integrative Health) Also in Spanish
  • Health Information on the Web: Finding Reliable Information (American Academy of Family Physicians) Also in Spanish

  Related Issues

  • Health Literacy: MedlinePlus Health Topic (National Library of Medicine) Also in Spanish
  • How to Spot Health Fraud (Food and Drug Administration)
  • Rumor Control: Learn and Share FDA Facts to Help Stop the Spread of Misinformation (Food and Drug Administration) Also in Spanish

  Specifics

  • Diet in the News -- What to Believe? (Harvard School of Public Health)
  • Finding Cancer Information on the Internet (American Cancer Society)
  • Health Misinformation Checklist (Surgeon General) - PDF
  • How to Find Cancer Resources You Can Trust (National Cancer Institute) Also in Spanish
  • Know the Science: The Facts about Health News Stories (National Center for Complementary and Integrative Health) Also in Spanish
  • Talk to Your Community about Health Misinformation (Surgeon General) - PDF

  Videos and Tutorials

  • Evaluating Internet Health Information: A Tutorial from the National Library of Medicine (National Library of Medicine) Also in Spanish