Linda Paulls, MLIS
Mount Sinai Beth Israel Medical Librarian
Consumer health information is information on health topics and medical conditions available to the general public at the layperson level, usually written in non-technical language. It’s estimated that 70% of U.S. adults search the web for health information.1 Online information can influence health beliefs and health decision-making. Unfortunately, not all health websites are credible, accurate, or up-to-date. With so many seeking online health information, some less-than-credible or opportunistic websites can attempt to influence information-seekers for their own gain, rather than offer unbiased, evidence-based information. Some of these websites offer opinions not facts, while others are motivated by a sponsor or business with the goal of promoting something.
So, how can information-seekers identify a credible website from a bad website? Luckily, there is criteria for evaluating consumer health websites, sometimes referred to as the ABC’s of evaluating consumer health websites:
- Accuracy: Information should be based on facts from medical research, not opinion. Authors’ email address(es)/contact info, and credentials should be provided. Is this person qualified to write on this topic? Sources for factual information should be listed.
- Authority: Who created the website? Check the “About us” page. Check the website’s URL. The web address can provide information about the nature of the site. Websites from the U.S. government (.gov), a university (.edu), and health organizations or professional societies (.org) are considered reputable with no financial gain. In addition, author’s credentials and affiliations should be listed to demonstrate that he or she can write with authority on the topic.
- Bias/Objectivity: Information should be objective and free of bias. Is the purpose and intention of the site clear? There should be no advertisements, no marketing. Blogs are opinion-based, not reliable, authoritative sources.
- Currency: Is the information current? The date the website was last updated should be listed. If it contains links, are they up-to-date?
- Coverage/Design: Is the site well-designed? It should be free of broken links, typos, spelling errors. These could be indicators that the site is not maintained, not up-to-date, or not from a credible source. You should be able to view information without fees or browser issues.

Many consumer health websites choose to abide by the Health-on-the-Net Code (HON). The HONcode Symbol represents the code of conduct of the Health On the Net Foundation, one of the most widely used and best trusted ethical codes for consumer health websites. It is still advisable to evaluate website content even when the HONcode symbol is present.
For more information on evaluating consumer health websites, visit:
-
The Levy Library Guide: Consumer Health Information, A Brief Guide: https://libguides.mssm.edu/consumer-health-information
-
Medical Library Association (MLA): For Consumers and Patients, Find Good Health Information: https://www.mlanet.org/page/find-good-health-information
-
(National Library of Medicine) MedlinePlus: Guide to Healthy Web Surfing: https://medlineplus.gov/healthywebsurfing.html
-
AmericanFamilyDoctor.org: Finding Information on the Web, Finding Reliable Information: https://familydoctor.org/health-information-on-the-web-finding-reliable-information/?adfree=true
References
-
Sun Y, Zhang Y, Gwizdka J, Trace CB. Consumer evaluation of the quality of online health information: Systematic literature review of relevant criteria and indicators. J Med Internet Res. 2019 May;21(5): e12522. Available from DOI: 10.2196/12522
-
Kapoun, J. Teaching undergrads web evaluation: a guide for library instruction. C&RL News. 1998 July/August: 522-523. [cited 2021Nov4]. Available from https://crln.acrl.org/index.php/crlnews/article/view/23707/31079
-
For health consumers and patients: find good health information [Internet] Medical Library Association (MLA); 2021 [cited 2021 Nov4]. Available from https://www.mlanet.org/page/find-good-health-information
-
Guide to healthy web surfing [Internet] MedlinePlus. U.S. National Library of Medicine; 2015 [cited 2021Nov4]. Available from https://medlineplus.gov/healthywebsurfing.html
-
The commitment to reliable health and medical information on the internet [Internet] HonCode patient/individual. Health on the Net; 2018 [cited 2021 Nov4] Available from https://www.hon.ch/HONcode/Patients/Visitor/visitor.html
Starting in June 2022, My NCBI account holders will be required to log in through one of the many listed federated account credentials.
If you have an My NCBI account and have not yet linked a 3rd party login to your My NCBI account, we encourage you to retire your username and password. For more information and to learn how to update your account, you can watch the My NCBI Password Retirement Update & Wizard Demonstration.
How to create/ log into your My NCBI Account
Creating or logging into an existing MyNCBI account begins with clicking the "Log In" box in the upper right-hand corner of PubMed.
In order to create a new MyNCBI account, or to log into your existing account, you must use a "third-party login." Third party logins or federated credentials are credentials (username, password) you use on other sites such as Google, NIH, eRA Commons, ORCID, Login.gov, or Facebook.
Existing Account: If you already have a MyNCBI account, you will be prompted to associate your account with a third-party login of your choice. Once associated, your MyNCBI username & password will be retired.
New Account: When creating a new account, you will be asked to select from a list of third-party login options with which to associate your new account.
ISMMS Institutional Sign-In: If you have an active ISMMS Google Suite account, you may select "more login options" at the bottom of the list and search for "Icahn School of Medicine at Mount Sinai." You may then use your ISMMS Google account to login to your MyNCBI account. This option is only available for ISMMS users with Icahn Google Suite accounts.
Login.gov Option: Alternatively, if you don't have an existing third party account, you can sign up for a Login.gov account which allows you to login securely across several government agency websites. Simply use select "Login.gov" from the list of third-party options and click "Create an Account."
Once you have either created or re-authenticated your MyNCBI account with a third-party login option, you may use all of the exciting tools that MyNCBI has to offer!
For more information about NCBI account change, please visit one of the links below:
To learn more about using NCBI, visit the library's PubMed Research Support Guide.