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Magnesium is one of the most important minerals for us, though we should not take too much (the Ca/Mg ration should be 2/1 and remain constant)
Here is an article on the lack of controls of manufacturers
Could someone post the results of the tests published on www.ConsumerLab.com - if you have registered
Reuters Health
NEW YORK (Reuters Health) - By and large, magnesium supplements appear to contain levels of magnesium stated on the product label, according to a report.
However, 2 out of 19 products recently analyzed by ConsumerLab.com did not pass the company's testing. One product contained 50% more magnesium than claimed, and it and one other product contained levels of lead in excess of the State of California Prop 65 limits--a set of chemical-exposure regulations that in some cases are more stringent than those established by the federal government.
For a fee, ConsumerLab.com, a commercial testing company in White Plains, New York, licenses its flask-shaped "Seal of Approved Quality" to companies whose products pass testing.
According to a press release from ConsumerLab.com, the supplement found to have excess magnesium would have exposed consumers to 1,200 milligrams of magnesium per day if they followed the label instructions. This is more than three times the US upper tolerable intake level for the essential mineral, which when taken in supplement form, can cause diarrhea.
"While there are times when it is appropriate to exceed the tolerable limit to prevent or treat deficiency, it seems irresponsible for a manufacturer to recommend a dose far in excess of the limit and, on top of that, put in one and (a) half times the labeled amount," said Dr. Tod Cooperman, president of ConsumerLab.com.
"All of the other products were well within range of their claims, indicating that accurate formulation is certainly possible," he added in a statement.
Experts estimate that consumers will spend $15.7 billion this year on herbal and dietary supplements, which include vitamins. Under the Dietary Supplement Health and Education Act of 1994, supplement manufacturers are required to have in their files substantiation of any claims they make about how a product affects the structure or function of the body. They must also notify the Food and Drug Administration (FDA) of claims that they are making within 30 days of marketing a given dietary supplement.
However, the FDA does not regulate ingredients in supplements or dosage levels
Here is an article on the lack of controls of manufacturers
Could someone post the results of the tests published on www.ConsumerLab.com - if you have registered
Reuters Health
NEW YORK (Reuters Health) - By and large, magnesium supplements appear to contain levels of magnesium stated on the product label, according to a report.
However, 2 out of 19 products recently analyzed by ConsumerLab.com did not pass the company's testing. One product contained 50% more magnesium than claimed, and it and one other product contained levels of lead in excess of the State of California Prop 65 limits--a set of chemical-exposure regulations that in some cases are more stringent than those established by the federal government.
For a fee, ConsumerLab.com, a commercial testing company in White Plains, New York, licenses its flask-shaped "Seal of Approved Quality" to companies whose products pass testing.
According to a press release from ConsumerLab.com, the supplement found to have excess magnesium would have exposed consumers to 1,200 milligrams of magnesium per day if they followed the label instructions. This is more than three times the US upper tolerable intake level for the essential mineral, which when taken in supplement form, can cause diarrhea.
"While there are times when it is appropriate to exceed the tolerable limit to prevent or treat deficiency, it seems irresponsible for a manufacturer to recommend a dose far in excess of the limit and, on top of that, put in one and (a) half times the labeled amount," said Dr. Tod Cooperman, president of ConsumerLab.com.
"All of the other products were well within range of their claims, indicating that accurate formulation is certainly possible," he added in a statement.
Experts estimate that consumers will spend $15.7 billion this year on herbal and dietary supplements, which include vitamins. Under the Dietary Supplement Health and Education Act of 1994, supplement manufacturers are required to have in their files substantiation of any claims they make about how a product affects the structure or function of the body. They must also notify the Food and Drug Administration (FDA) of claims that they are making within 30 days of marketing a given dietary supplement.
However, the FDA does not regulate ingredients in supplements or dosage levels
