Many people take multivitamins as a health insurance safety net just to make sure they're covered.
A new review of dozens of popular daily vitamins found that one in three did NOT contain the amount of nutrients listed on the label.
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An independent lab called Consumer Lab tested 38 leading brands of multivitamins and found eight didn't contain enough specific nutrients, two had more nutrients than they claimed and three did not list the ingredients correctly.
The Food and Drug Administration does not test vitamins so it can be hard to know what's in them.
Consumer Labs found no connection between price and accuracy on the label.
Click here to see which multi-vitamins passed the tests
Consumer labs conducts independent tests and reviews of vitamins and supplements. There is a fee to see the results.