Probiotics are live, nonpathogenic microorganisms (usually bacteria or yeasts) marketed as dietary supplements. They have not been approved by the FDA for any indication. Since our last article on this subject,1 some new data have become available.
Once a month, JAMA selects for publication one article previously published in The Medical Letter.
Previous Publication: This article was previously published: The Medical Letter on Drugs and Therapeutics. January 7, 2013;55(1407):3-4.
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