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Old 03-05-2011, 07:50 AM   #1
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How much magnesium TOO much?

Hey y'all!

I started taking magnesium oxide supplements to help with, umm, errr, "regularity". I started at a modest dose 500 at bedtime, but have not had the desired results.

So, I started slowly increasing the dosage (WHILE DOING OTHER MEASURES TO HELP), but again, no results from the mag.

I am now up to 1250 mg of supplements per day, with no noticeable results and I'm concerned to go up any further. I even started taking 2,000 mg of Vit C with the mag at night to help. But, nothing.

How does one know how much is too much magnesium supplements, without getting into trouble physically?

Thanks for the feedback!

Last edited by RealFoodLiving; 03-05-2011 at 08:11 AM..
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Old 03-05-2011, 08:07 AM   #2
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RealFood, I too had not such good luck with the Mag and I use the Nature Valley 250mg 1 tab per day, however something I did discover that works for me, may not for you, but worth a try if you like it. I eat Dole Organic Spring Mix, I think any Spring Mix may work, but the variety I use is very cheap (I get at Wal-Mart and is $2.88 for 5oz.) and very tasty, no need to wash again. I eat a salad a day and have "gone" more in the last 2 weeks than I have in the last 5 months since starting this WOE. HTH!
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Old 03-05-2011, 08:11 AM   #3
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Hi, RFL. I got the following from WebMD:

"..........Doses less than 350 mg per day are safe for most adults. When taken in very large amounts, magnesium is POSSIBLY UNSAFE. Large doses might cause too much magnesium to build up in the body, causing serious side effects including an irregular heartbeat, low blood pressure, confusion, slowed breathing, coma, and death.........."

Hope you can resolve this problem soon, both for your health and for your comfort. Maybe a bit more vegetable matter in your meals?
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Old 03-05-2011, 08:13 AM   #4
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Nature Valley imho is not a good magnesium brand as it has sugar in it.

I take nature made and I have taken up to 6 at times which is 1500. One is most certainly not enough.

You will have loose stools if you take too much. No biggie to me. Thats how I was able to judge how much it took to get me going. I then just decreased or increased the mag till I found a good balance.

Magnesium has been the answer to my problems that I have had all my life even before low carbing.

Last edited by SkeeterN; 03-05-2011 at 08:14 AM..
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Old 03-05-2011, 08:20 AM   #5
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Thanks Y'all!

Skeeter, I'm using "Sundown Naturals" Mag oxide, no sugar.

You've taken up to 1500 mg mag with so side effects?

Did you pair it with Vit C or just the mag?

I know there are some concerning side effects (the ones that SoHappy posted), but I also know that usually those warnings are waaaay less than effective doses.

Does anyone take 1500 mg of mag oxide?
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Old 03-05-2011, 08:27 AM   #6
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Quote:
Originally Posted by LowCarbPanda86 View Post
RealFood, I too had not such good luck with the Mag and I use the Nature Valley 250mg 1 tab per day, however something I did discover that works for me, may not for you, but worth a try if you like it. I eat Dole Organic Spring Mix, I think any Spring Mix may work, but the variety I use is very cheap (I get at Wal-Mart and is $2.88 for 5oz.) and very tasty, no need to wash again. I eat a salad a day and have "gone" more in the last 2 weeks than I have in the last 5 months since starting this WOE. HTH!
The Spring Mix greens for salad is what I always recommend here too, as it sure works for me! Wa-a-a-y better than lettuce, that's for sure.

Plus the stuff is so nutrient loaded, and I can always use that boost. Plus, I just like it.
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Old 03-05-2011, 08:29 AM   #7
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Quote:
Originally Posted by SoHappy View Post
The Spring Mix greens for salad is what I always recommend here too, as it sure works for me! Wa-a-a-y better than lettuce, that's for sure.

Plus the stuff is so nutrient loaded, and I can always use that boost. Plus, I just like it.

Thanks! I eat that quite often, but it does not do anything for my regularity. Thus the supplement route. It's great to eat, but does not "work" for me for my problem.
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Old 03-05-2011, 08:34 AM   #8
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RealFood-
I tried mega doses of magnesium because everyone swears by it, and Dr. Eades recommends it most highly. It doesn't work for me. Neither do salads or veggies, I'm discovering.

I was taking psyllium powder (putting it in foods), and that helped a lot, but there are 'warnings' about fiber irritating intestines, etc.

This week, I see my GI doc, and I plan to discuss this with him in some detail because he knows my difficulties, and I trust his view. I'll PM you with what I learn--OK?
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Old 03-05-2011, 08:38 AM   #9
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Quote:
Originally Posted by SkeeterN View Post
Nature Valley imho is not a good magnesium brand as it has sugar in it...
:blush: Sorry I meant Nature Made, this one:
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File Type: jpg mag.jpg (31.0 KB, 3 views)
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Old 03-05-2011, 09:24 AM   #10
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Magnesium oxide is an inexpensive salt of magnesium that uses up some of your body's antioxidants to neutralize the oxide. Magnesium glycinate works well for many. I take about 800-1000mg of it spread out through the day.
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Old 03-05-2011, 10:32 AM   #11
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Quote:
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RealFood-
I tried mega doses of magnesium because everyone swears by it, and Dr. Eades recommends it most highly. It doesn't work for me. Neither do salads or veggies, I'm discovering.

I was taking psyllium powder (putting it in foods), and that helped a lot, but there are 'warnings' about fiber irritating intestines, etc.

This week, I see my GI doc, and I plan to discuss this with him in some detail because he knows my difficulties, and I trust his view. I'll PM you with what I learn--OK?

Thank you Leo!!! I hope you get some answers that help you.
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Old 03-05-2011, 10:38 AM   #12
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RealFood Living, have you always had problems with constipation or is this new?

I take magnesium and I never have to worry about taking too much because it gives me diarrhea. But it doesn't sound like that would work for you.
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Old 03-05-2011, 10:40 AM   #13
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RealFood Living, have you always had problems with constipation or is this new?

I take magnesium and I never have to worry about taking too much because it gives me diarrhea. But it doesn't sound like that would work for you.
Hi Kat,

This has developed since I returned to low carbing in Nov and it seems to be getting worse.
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Old 03-05-2011, 12:42 PM   #14
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I take 1500 after dinner.....8 pm....has helped....miralax every couple of days....don't eat many veggies though.
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Old 03-05-2011, 06:38 PM   #15
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Have you tried making a One Minute Muffin? It's made with 1/4 c flax seed meal. I eat one every other day and it certainly does the trick - tastes good too! I make mine in a bowl so the "muffin" is bigger. Then I slice it in half so I have two thin rounds. I make my breakfast sandwich out of it - bacon (or sausage), egg and cheese. Grill a little once it's together. It's so good!

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Old 03-05-2011, 10:59 PM   #16
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I have to have my flax muffins (with a lot of fluid!) in addition to the magnesium.
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Old 03-06-2011, 07:21 AM   #17
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Quote:
Originally Posted by RealFoodLiving View Post
Thanks Y'all!

Skeeter, I'm using "Sundown Naturals" Mag oxide, no sugar.

You've taken up to 1500 mg mag with so side effects?

Did you pair it with Vit C or just the mag?

I know there are some concerning side effects (the ones that SoHappy posted), but I also know that usually those warnings are waaaay less than effective doses.

Does anyone take 1500 mg of mag oxide?
I have zero side effects except to be able to go. No pairing I take potassium too.

If do not take 1500 every day. Just if I find that I need help. I usually take 2 which is 500 mg but at times that isn't enough as I have really goofy issues.

Miralax didn't work for me, neither does psylliam.
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Old 03-06-2011, 07:55 AM   #18
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Quote:
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Hi Kat,

This has developed since I returned to low carbing in Nov and it seems to be getting worse.
I am so, so sorry you are going through this. It so rarely happens to me since I eat higher carb than you do, but I remember the uncomfortable feeling, so I have nothing but sympathy for you.

You said that the vegetables/spring mix greens don't do the trick for you, and I've been thinking about it..... I know you eat a lot of shirataki noodle. Could it be causing this trouble? Just throwing that out there. Since glucomannan (the same product) is known for its ability to absorb fluid, could it be removing too much moisture from your *workings*? Just a thought.

Hoping this resolves itself soon!
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Old 03-06-2011, 08:23 AM   #19
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I am eating a OMM and drink a powdered form of magnesium in water called "Natural Calm". That does the trick within a couple of hours!!
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Old 03-06-2011, 08:55 AM   #20
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I am eating a OMM and drink a powdered form of magnesium in water called "Natural Calm". That does the trick within a couple of hours!!
Yes, Natural Calm magnesium at bedtime really, really works. Maybe because of its powdered form? I can't use it, in any quantity, because it works TOO well for me!

I take a magnesium tablet in addition to my two calcium w/magnesium supplements = 330 mg/day is what makes the train run on time for me. (But we regularly consume MIMs in our house, made from half almond flour and half flax meal.)
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Old 03-06-2011, 09:12 AM   #21
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I take 1000mg of magnesium and ALOT OF WATER.. I think the lots of water is what does the trick with the magnesium.. (I drink atleast 100oz of water a day)
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Old 11-25-2012, 10:56 AM   #22
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When I originally lost 60lbs on low carb 9 years ago, I had to stop my Blood Pressure medication due to quick drops when bending over. The symptoms ceased and was fine until I gained 15lbs back and had to start the BP medication again 5 years ago. I didn't experience the sudden BP drops again until recently.

I'm 53 and started Magnesium Oxide 500Mg six weeks ago for bone and nerve health. I have lost 15lbs over that time and started having issues with hypotension. I've stopped the BP medication again but the hypotension is not resolving. I have had no other symptoms taking the magnesium other than an improvement in regularity. But the side effects include rapid heart, shortness of breath and hypotension.

Stopping the Mag to see if that helps. Otherwise Benefiber 3-4 times a week helps me.
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Old 11-25-2012, 05:29 PM   #23
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Not an expert or anything, but I've read that most of the Magnesium Oxide isn't even absorbable by the body. Try Magnesium Cirate, or Magnesium Glycinate and you should see better results
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Old 11-25-2012, 07:23 PM   #24
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I use natural Calm. I get great results with it.
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Old 11-26-2012, 07:34 AM   #25
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Quote:
Originally Posted by JoKuss View Post
When I originally lost 60lbs on low carb 9 years ago, I had to stop my Blood Pressure medication due to quick drops when bending over. The symptoms ceased and was fine until I gained 15lbs back and had to start the BP medication again 5 years ago. I didn't experience the sudden BP drops again until recently.

I'm 53 and started Magnesium Oxide 500Mg six weeks ago for bone and nerve health. I have lost 15lbs over that time and started having issues with hypotension. I've stopped the BP medication again but the hypotension is not resolving. I have had no other symptoms taking the magnesium other than an improvement in regularity. But the side effects include rapid heart, shortness of breath and hypotension.

Stopping the Mag to see if that helps. Otherwise Benefiber 3-4 times a week helps me.
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Old 11-26-2012, 01:25 PM   #26
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I take a 500 mg supplement every night, magnesium is great for a lot things other than keeping things moving.
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Old 11-26-2012, 02:00 PM   #27
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I take magnesium chloride. But lately have had to add a fiber supplement to the mix. I'm taking Konsyl, which is pure psyllium, nothing added. That plus a probiotic seem to be helping.
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Old 11-27-2012, 04:19 PM   #28
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I take Magnesium citrate. Oxide may not be as effective for some...

Works every time.
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