
Just like food labels, the labels on multivitamins can be deceptive. When you use a multivitamin to make up for vitamin deficiencies, you may not be getting as much or getting more than you intended. Some multivitamins have excessive amounts of certain vitamins, which is not always a good thing. Other multivitamins can be contaminated with lead.
What Is Dangerous?
While it is highly recommended to get 100% daily value of vitamins, there are vitamins that pose serious health risks when overdosed. For example: too much vitamin A can cause bone weakening, liver abnormalities, abdominal pain, headaches, and more. Contamination can also be a problem.
Testing of Multivitamins
ConsumerLab.com is a company in New York (USA) that independently evaluates hundreds of health products. In 2007, they selected 21 brands of multivitamins from the United States and Canada and sent them to independent companies to be tested. Only 10 satisfied quality standards or matched the claims on their labels.
Besides being potentially dangerous, some multivitamins failed because they took too long to disintegrate. The longer a multivitamin takes to disintegrate, the likelier the product to go through the body without releasing all of the nutrients. Some multivitamins that met the standards were Centrium Silver, Member's Mark Complete Multi, One a Day Women's, and Flintstones Complete.
Standards
It is suggested to look for a stamp from U.S. Pharmacopeia (USP), National Sanitation Foundation (NSF), or ConsumerLab.com. Although it is not a guarantee that the product is safe and effective, it does guarantee that the manufacturer has submitted the product for testing.
A USP verification mark means that it contains the ingredients listed on the label and in the declared amounts. It has also been tested for harmful levels of certain contaminants like lead, mercury, bacteria, pesticides, and toxins. The multivitamin will also break down in a timely manner so that your body can reap the full benefits.
Looking for stamps of approval is just one way to make sure you are getting a decent multivitamin. Tips on finding quality multivitamins can be found in this article.
Resources:
http://www.msnbc.msn.com/id/16655168/
http://www.nsf.org/index.asp
https://www.consumerlab.com/
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