U.S. FDA Tips on Searching the Web for Information on Dietary Supplements


U.S. Food and Drug Administration

When searching on the Web, ask yourself the following questions:

Who operates the site?

Is the site run by the government, a university, or a reputable medical or health-related association (e.g., American Medical Association, American Diabetes Association, American Heart Association, National Institutes of Health, National Academies of Science, or U.S. Food and Drug Administration)? Is the information written or reviewed by qualified health professionals, experts in the field, academia, government or the medical community?

What is the purpose of the site?

Is the purpose of the site to objectively educate the public or just to sell a product? Be aware of practitioners or organizations whose main interest is in marketing products, either directly or through sites with which they are linked. Commercial sites should clearly distinguish scientific information from advertisements. Most nonprofit and government sites contain no advertising; and access to the site and materials offered are usually free.


What is the source of the information and does it have any references?

Has the study been reviewed by recognized scientific experts and published in reputable peer-reviewed scientific journals, like the New England Journal of Medicine? Does the information say "some studies show..." or does it state where the study is listed so that you can check the authenticity of the references? For example, can the study be found in the National Library of Medicine's database of literature citations (PubMed).

Is the information current?

Check the date when the material was posted or updated. Often new research or other findings are not reflected in old material, e.g., side effects or interactions with other products or new evidence that might have changed earlier thinking. Ideally, health and medical sites should be updated frequently.

How reliable is the Internet or e-mail solicitations?

While the Internet is a rich source of health information, it is also an easy vehicle for spreading myths, hoaxes and rumors about alleged news, studies, products or findings. To avoid falling prey to such hoaxes, be skeptical and watch out for overly emphatic language with UPPERCASE LETTERS and lots of exclamation points!!!! Beware of such phrases such as: "This is not a hoax" or "Send this to everyone you know."

Source: U.S. Food and Drug Administration