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Magnesium Stearate: Make Sure It's Not
On Your Vitamin Bottle's Ingredient List

Millions of people take supplements but very few know of the potential dangers lurking in vitamins that stem from their manufacturing process. Magnesium Stearate is a lubricant and absolutely useless to your body, yet it is found in more than 90% of all vitamin supplements.

Magnesium Stearate or Stearic Acid is basically a toxin made by hydrogenating cottonseed or palm oil that has no other purpose than to coat the active ingredients as a lubricant. This essentially decreases the absorption and automatically presents a hydrogentated substance to every vitamin capsule. Supplement companies use Magnesium Stearate or Stearic Acid primarily to boost their profit margins. By increasing the availability of this flowing agent, the production machinery will run at maximum speeds when all raw materials are added.

How Much Hydrogenated Lubricant Oils Are You Getting With Your Supplements?

Up to 5% of the average 1000 mg capsule or tablet is magnesium stearate. That’s 50 milligrams. Suppose you take 8 capsules or tablets a day. That’s 250 a month – or 12,500 mg of this hydrogenated oil, nearly half an ounce. That works out to about 6 ounces of hydrogenated oils a year, from just 8 pills a day. Many people take more supplements, and ingest pounds of this toxic oil we try to avoid in our diets – while directly inhibiting the utilization of the nutrients they’re supplementing!

Magnesium Stearate is considered a Hazardous Substance

Companies that manufacture and transport magnesium stearate must file a Material Safety Data Sheet with the Environmental Protection Agency because concentrated magnesium stearate is classified as a hazardous substance. Under the heading “Regulatory Information,” the paper states, “This product is hazardous under the criteria of the Federal OSHA Hazard Communication Standard.” This information may be viewed at the web

Its uses are listed as “ammunition, dusting powder, paint and varnish drier, binder, and emulsifier.” The section “Human Health Data” states that “Inhalation may irritate the respiratory tract” and “Acute ingestion may cause gastroenteritis.”

Pesticides and Metal Catalysts

If it's not bad enough that you're ingesting a toxin, Magnesium Stearate may be loaded with pesticides that are used on cottonseed or palm oil that has been hydrogenated. In addition, the chemical structure of the fatty acids in Stearic Acid having been altered through close contact with various metal catalysts at extremely high temperatures. This introduces countless toxic compounds into your body as a result.


Magnesium Stearate has been proven to prevent from 60 percent to 100 percent of the absorption of the nutrients of the pill. A study in the Journal of AOAC International in 2006 showed that after the manufacturing process is complete, a large percentage of magnesium stearate exceeds the safe dosages designed to optimize absorption of nutrients that is established in research.

Bottom Line

If you take into account all of the negatives associated with Magnesium Stearate, it's outright irresponsible for any company to include this substance in any health supplement. It's a hazardous substance, a lubricant, hydrogenated oil and it decreases absorption....need we say more?


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