Magnesium stearate found to block nutrient absorption? | All Gluten Free All The Time | Forum



Please consider registering

Log In

Lost password?
Advanced Search:

— Forum Scope —

— Match —

— Forum Options —

Wildcard usage:
*  matches any number of characters    %  matches exactly one character

Minimum search word length is 4 characters - maximum search word length is 84 characters

Topic RSS
Magnesium stearate found to block nutrient absorption?
July 5, 2012
9:08 am
Diane Zides

Gluten Free Champion
Forum Posts: 64
Member Since:
March 19, 2011

Dr. Mercola had a recent article about magnesium stearate, a chaulky filler in most vitamins, being found to produce a bio film in the gut that blocks all nutrients from food and vitamins so they aren't absorbed. He's always been in favor of getting your nutrients from food over supplements if possible. This latest study supports that belief. A switch to liquid vitamins would eliminate this problem since they don't contain magnesium stearate.

Has anyone out there read this? I'd like to know Dr. O's opinion. If it proves to be true, taking vitamins other then in liquid form, would be totally counter productive, and delay, if not make healing, impossible. The other issue is cross contamination of gluten in vitamins, so gluten intolerant people would be getting a " double whammy" from gluten and magnesium stearate inhibiting gut function.

I might have had gastritis and didn't know it, so my vitamins were making me nauseous from the start. I stopped taking them when the gastritis got bad enough for me to realize I had it, and I'm feeling better now that it's about gone. I just started taking a multivitamin and magnesium supplement again before trying the rest of them. So far no nausea. I'd hate to find out I'm wasting my time and money with supplements that are working against me if magnesium stearate and gluten cross contamination is hurting me.

October 11, 2012
12:11 pm
Anthony Rao

Gluten Free Warrior
Forum Posts: 21
Member Since:
September 30, 2012

Here's the article from…..ments.aspx


Here's the comment:

"Aside from the issue of synthetic versus whole is the issue of what is added to your supplement aside from the active ingredient. Many supplement makers are adding flowing agents into their capsules, such as magnesium stearate. Previous research has shown that magnesium stearate suppresses your natural killer cells, which are a key component of your immune system.

Magnesium stearate is much like a chalk filler that stimulates your gut to form a biofilm — a sort of sludge lining — that acts as an effective barrier to the absorption of not only that particular vitamin but ALL the nutrients you'd normally get from food sources as well!"


My reply to Diane~

Diane, I hope you are able to continue to improve your situation. And many people end up tossing out supps and vitamins because we read how 1 or more ingredients in those are defeating the purpose. Nothing ventured, nothing gained though, right?


I just tossed out about $180 worth of vitamins and minerals because they have rice flour, magnesium stearate, etc in them. Why on earth would they put rice flour in an encapsulated enzyme? I guess I'll make my own fermented veggies to get my flora and a nice side-dish too.


Also, thanks for the tip. I bought some Krill Oil caps from Dr. Mercola today.


Best in health!Wink

October 22, 2012
7:04 pm
Gluten Free Society
Forum Posts: 614
Member Since:
January 4, 2010

In my experience, magnesium stearate has rarely ever posed a problem.

You might find this article on the other side of the spectrum interesting:



All the best,

Dr. O

Forum Timezone: America/Detroit

Most Users Ever Online: 281

Currently Online:
7 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Top Posters:

farmwife67: 238

1desperateladysaved: 133

Jackie: 116

Rita Bray: 83

Ariella6: 66

Diane Zides: 64

Member Stats:

Guest Posters: 8

Members: 3848

Moderators: 0

Admins: 3

Forum Stats:

Groups: 1

Forums: 3

Topics: 812

Posts: 2685

Newest Members: Nadia Stevens, ISUShelO, Patricia Hayes, Tasha Tymchuk, Dorothy Moyer, Kyrston Miller

Administrators: Gluten Free Society (614), Peter Osborne (0), Ash (1)

Email This Page Email This Page
Powered by WishList Member - Membership Site Software