Magnesium 500 MG | GNC
Gluten Free Gluten Free
Sugar Free Sugar Free
Dairy Free Dairy Free
Soy Free Soy Free
No Artificial Flavors/Colors No Artificial Flavors/Colors
Corn Free Corn Free
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GNC Magnesium 500 MG


Item # 136812
Gluten Free Gluten Free
Sugar Free Sugar Free
Dairy Free Dairy Free
Soy Free Soy Free
No Artificial Flavors/Colors No Artificial Flavors/Colors
Corn Free Corn Free
View All Specialty Diets
Note: This product cannot be sold in Canada

Product Information



GNC Magnesium 500mg: Helps Build Bones and Maintain Teeth

As a dietary supplement, GNC Magnesium 500mg can support heart health. By aiding in calcium absorption, GNC magnesium supplements helps build bones and maintain teeth. Each capsule provides 500mg of magnesium in the form of magnesium oxide, providing over 100%/119% percent of your daily needs. Containing no sugar, sodium, artificial flavors or artificial colors, this supplement provides you with what you need. It's also free of gluten, wheat, corn, soy and dairy so those with allergies or sensitivities can consider this an option. For best results, take one capsule every day.

  • GNC magnesium capsules contain 500mg magnesium oxide
  • This magnesium supplement has no artificial flavors, artificial colors, sugar or sodium
  • Free of  of dairy, soy, corn, wheat and gluten


Nutrition Facts
Serving Size  1 Capsule(s)
Servings Per Container  120

Amount Per Serving     % DV

Magnesium (as Magnesium Oxide) 500 mg   125%

** Daily Value (DV) not established.
Other Ingredients
Label (click image to enlarge)

How To Use

As a dietary supplement, take one capsule daily. For maximum benefits, take as directed every day.
Keep out of reach of children.

Hors de la portée des enfants.
Store in a cool dry place.
Distributed by: General Nutrition Corporation, Pittsburgh, PA 15222

Magnesium: An Essential Mineral

A great addition to your daily nutrition and health regimen, GNC Magnesium 500 MG Dietary Supplement provides 500mg of magnesium per serving. Magnesium helps build and maintain strong, healthy bones and teeth.* It is also involved in heart, skeletal muscle, nerve and cell function and is required by the body for energy production.*

GNC Magnesium 500 MG Dietary Supplement

An essential mineral, magnesium is critical for a number of bodily functions including:*

  • Calcium absorption
  • Protein synthesis
  • Nerve, skeletal muscle, heart and cell function
  • Energy production
  • Proper vitamin D function

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.


4.4 / 5.0
34 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
High Magnesium Content
There is no side effect during taking after purchase. I eat twice a day. My body is getting better.
April 18, 2019
3 months ago
Never received it
April 2, 2019
3 months ago
Response from GNC
Hello, Amy. Thank you for letting us know about this issue and we’re sorry for the inconvenience. I have escalated this to Customer Service to have this further investigated and someone will be in touch with you shortly. Thank you.
April 8, 2019
Beth G
Quality magnesium, have purchased a number of times
The best Magnesium yet and quite effective
March 22, 2019
4 months ago
I still have problems sleeping.My energy is very good now
March 6, 2019
4 months ago
Excellent for Restless Leg Syndrome & Circulation
for years I've suffered with Restless Leg Syndrome and was unaware Magnesium could help so much until I suffered from a side effect to a medication which brought on severe leg cramps, charley horses, tingling and numbness in my feet. I was desperate to get relief and tried taking GNC's Magnesium 500 mg. They worked and my circulation was restored! I am sold on this brand and have continued taking them daily. Good for the immune system too. Excellent choice!!
February 8, 2019
Excellent source of indigestion help
Excellent help with constipation.
December 20, 2018
6 months ago
CNG products are very reliable
December 10, 2018
7 months ago
Job well done.
Does what it's made for another great product.
October 18, 2018
9 months ago
500MG Magnesium
My wife has been taking these for 20+ years. Why don't you have it in larger MG? She takes many a day, which is a problem. Please double to 1000MG.
July 15, 2018
1 year ago
As a supplement daily
April 12, 2018
1 year ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 11 questions Browse 11 questions and 14 answers
Why did you choose this?
GNC Store
Fantastic for muslces fiber repair after soreness.
C a on Apr 2, 2015
Fantastic for muslces fiber repair after soreness.
C a on Apr 2, 2015
Will the magnesium 500 mg progduct help with anxiety/depression/migraines? I have read that a magenesium deficiency may be partially to blame for these things. I have also ready that stress can keep your body from using magesium properly. If so, what can I do to help my body use the magnesium even though I am under tremendous amounts of stress?
A shopper on Nov 2, 2013
BEST ANSWER: This is just a supplement, it may or may not work for other issues you may have. I suggest talking with your doctor before taking it.
can this magnesium help in swollen ankle?
A shopper on Feb 16, 2017
which of your magnesium is the same as magnesium oxide ? trying to order this and the dr wants me on Magnesium oxide or MagOx so confused on what I am buying .
A shopper on Feb 13, 2015
BEST ANSWER: This supplement is 500 mg of magnesium oxide.
I have a hard time sleeping. Do i take 1 capo 500mg with a meal in evening or morning. Is 1 cap or 2 better. Please advise?
A shopper on Mar 3, 2017
BEST ANSWER: I usually take a single magnesium tablet (250 mg) in the morning. The one night that I took it before going to bed, I slept like a rock (answer to prayer). I have gone to a sleep specialist and found that was very helpful as well. Hope that helps.
what is the gelatin source in the magnesium ingredients. i need to know if they are meat based?
A shopper on Feb 7, 2017
what is the source of the gelatin?
A shopper on Jul 24, 2016
which product is best for leg cramps?
A shopper on Oct 19, 2016
BEST ANSWER: At my Dr.'s suggestion I am taking Mag. 500 mg per tablet along with Calcium Gluconate 300 mg per tablet.. It has helped. My dosage is high and I suggest you consult with your Dr. My Mag. had been running low. It should be above 1.8 to 2.0..... I was at 1.5 and when I started taking 9... 500 mg tablets of Magnesium and 9 Calcium Gluconate tablets a day it did not take long to bring my numbers up to 1.8 to 2.0 and I felt better. Leg cramps and foot cramps slowed down to nothing in a short time..I continue the dosage and it has been about 5 yrs now,I so appreciate my Dr.s suggestion of the dosage otherwise I had to have Infusions each week of both drugs..
What is the gelatin in the magnesium capsules made of? Is it made from pork or beef?
Ufaq I on Oct 30, 2018
BEST ANSWER: Neither - just plain cellulose gel.
what type of gelatin is used?
A shopper on Dec 6, 2016
BEST ANSWER: There isnt a specific name for the gelatin used the contents say cellulose and gelotin. No water, no coloring,no artificial flavors, sodium free,no wheat, glutin free, no soy, no corn, no dairy, no yeast. Good product!
Which magnesium product is best for nerve and muscle health? I currently take your Magnesium 500 oxide. Is this the correct product?
Debbie on Jan 16, 2019
BEST ANSWER: You may want to try Huperzine for nerve and protein for muscle. If you are looking for general inflammation support, turmeric or fish oil could be helpful..
Does this product have a laxative effect, something I don't want?
A shopper on May 10, 2019
BEST ANSWER: Not that I have noticed. My doctor has me on it for muscle cramps and it aides me in my battle with restless legs.