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Question:
I noticed that some ingredients in my multivitamin have no daily value established. A few concern me, specifically Boron (150 mcg per tablet), Nickel (5 mcg per tablet), and Tin (10 mcg per tablet). Should I be concerned about these ingredients?

Answer:
It may seem surprising to see ingredients like boron, nickel and tin on a supplement label. However, boron and nickel are found in many foods, and tin is sometimes used as an inactive ingredient in tablets. The small amounts found in your multivitamin do not pose a concern -- at the same time it's not clear if they offer any significant benefit. For more about boron, nickel, and tin see the full answer >>

Also see ConsumerLab.com's Review of Multivitamin and Multimineral Supplements >>

(You can check the recommended intakes and upper limits for other vitamins and mineral here.)


See other recent and popular questions >>
COMMENTS

Katherine327   December 18, 2014
Tin (stannous chloride) has been in various "Centrum" multivitamins and equivalents (as well as some other popular multis) for years

Martin321   December 14, 2014
I never heard of TIN listed as an ingredient on the labels of any of the many supplements I take every day. But on a lighter note, I can't help thinking about the Tin Man in the Wizard of OZ, (clearly evidence of a severe tin overdose at some point). However, the Tin Man was the warmest-hearted character in that famed classic and ends up with a brand new heart at the end!

Robert323   December 14, 2014
Buddy Ebsen was originally cast as the Tin Man but almost died from the "tin" make-up, which was actually aluminum powder.


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This CL Answer initially posted on 12/14/2014. Last updated 8/7/2017.
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