$15 off your $100 purchase, plus free shipping!
Vitacost Magtein(TM) Magnesium L-Threonate

Your entire order ships free*
with purchase of this product.

Buy one, get one 50% Off.
No promo code required

Vitacost Magtein(TM) Magnesium L-Threonate -- 2000 mg - 90 Vegetarian Capsules


& your entire order ships free*

In stock
  • Quantity: 

Enjoy our low price guarantee, plus an extra 10% off Set & Save Bonus Brands on any scheduled order.

Added to My List as a guest*.

*Your guest list will be temporarily saved until you end this browser session.

1 item added to your list

Vitacost Magtein(TM) Magnesium L-Threonate -- 2000 mg - 90 Vegetarian Capsules

Oops! Something went wrong and we were unable to process your request. Please try again.

  • Free Shipping
  • Buy one get one half off. No promo code required.

Supplement Facts
Serving Size: 3 Vegetarian Capsules
Servings per Container: 30
Amount Per Serving% Daily Value
Magnesium (as magnesium l-threonate)144 mg36%
Magnesium L-Threonate (Magtein™)2000 mg*
*Daily value not established.
Other Ingredients: Cellulose (capsule), rice flour and magnesium stearate (vegetable source).
Pregnant or lactating women, diabetics, hypoglycemics, and people with known medical conditions and/or taking drugs should consult with a licensed physician and/or pharmacist prior to taking dietary supplements. May cause drowsiness in some people; it is advised to take it after dinner of before going to bed when first using this product. Keep out of reach of children.

Vitacost Magtein(TM) Magnesium L-Threonate Description

NEW, patented and clinically studied form of magnesium developed by MIT scientists.

What is Vitacost Magtein™ Magnesium L-Threonate?


Magnesium is a mineral found abundantly throughout the body. Besides being necessary for more than 300 biochemical reactions, magnesium is involved in many important functions—from protein production and energy metabolism to cardiovascular and bone health.*


Foods such as leafy greens and nuts are especially good sources of magnesium, and it’s also found in whole grains, legumes, seeds, other vegetables, dairy and meats. It’s believed, however, that most people don’t consume enough dietary magnesium and may benefit from supplementation.


Vitacost Magnesium L-Threonate features a patented form of magnesium known as Magtein™. Magtein has been clinically studied for its potential absorption advantages compared to other forms of magnesium.


How does magnesium support health?

  • Important for healthy bones*
  • Supports cardiovascular health*
  • Helps maintain blood pressure already within normal range.*
  • Helps maintain normal muscle and nerve function*
  • Involved in protein synthesis and energy production*
  • Contributes to calcium absorption*

Why choose Vitacost Magtein™ Magnesium L-Threonate?

  • Features a patented, clinically studied form of magnesium: Magtein
  • Supplies 2,000 mg of magnesium L-threonate per 3-capsule serving
  • Contains 30 servings per bottle
  • Suitable for vegetarians
  • Better value than other magnesium L-threonate products on the market

About Vitacost

Vitacost nutritional products are manufactured to high standards of quality, efficacy and safety. Each Vitacost product meets or exceeds the standards and requirements set forth in the FDA’s Code of Federal Regulation (21 CFR, 111) Current Good Manufacturing Practices (CGMP).



* 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.


As a dietary supplement, take 3 capsules with food daily, or as directed by a healthcare professional.


Store in a cool, dry place.

Free Of
Milk, eggs, peanuts, tree nuts, shellfish, fish, soy, gluten, titanium dioxide.
These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Vitacost Magtein™ Magnesium L-Threonate -- 2000 mg - 90 Vegetarian Capsules 4.5 5 4 4
Wonderful product! I find Vitacost to have amazing price deals. And the quality of their products have always been top-of-the-line. So happy my practitioner informed me about Vitacost. July 24, 2013
Clearer Thinking After consuming the first bottle, I can truly endorse the positive benefits of this product. Better, clearer thinking, and general mood improvement. You will need to supplement with additional magnesium as this product only provides 144 mg. of elemental magnesium. But I definitely noticed a difference in my mental clarity and memory. June 2, 2013
I have only marked "average" as I have not been taking this product for long and am not yet sure of results- it had some good scientific reviews, so I am hoping for the best. I also buy Resveratrol and Omega 3 fish oil. and they are great. Best quality Omega 3 on the market, without doubt. Cheers Peter Bell December 1, 2012
Excellent The capsules are a bit large but go down easily. =) July 10, 2012
1-4 of 4
Know someone who would love this product? Don’t keep it a secret – share it now!
Note: Your friend's email address is used for this one-time notification only. We will not collect or store or share it with any other parties.
Friend's Name:
Your Name:
Friend's Email:
Your Email:
Message to your friend: (optional, max 500 characters)
Change the CAPTCHA codeSpeak the CAPTCHA code
Enter the code exactly as shown: