31002418 Jamieson 100% Pure Magnesium L-Threonate Capsules 31002418_1
31002418 Jamieson 100% Pure Magnesium L-Threonate Capsules 31002418_MAIN
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100% Pure Magnesium L-Threonate

Jamieson Magnesium + L-Threonate provides magnesium exclusively in the L-threonate form to help support bone and teeth development, muscle function (including the heart muscle), and electrolyte balance. This highly bioavailable, 100% pure form is designed for easy absorption and gentle digestion.

  • Supports normal muscle function, including heart muscle
  • Source of electrolytes for the maintenance of good health
  • Helps support energy metabolism and tissue formation
$25.99 $0.43 per serving
Dietary Features
Non-GMOVegetarianGluten-FreeLactose-FreeNaturally-Sourced

Jamieson Magnesium + L-Threonate is a single-form magnesium supplement made with 100% L-threonate. It provides a lower amount of elemental magnesium in a non-blended format, making it a more focused option compared to multi-form or high-dose magnesium products. Designed for those who prefer a simple, clean, and transparent magnesium. 

What Makes It Different?

Unlike blended or high-dose magnesium supplements, this formula uses L-threonate only. It’s designed for those who prefer a clean, simpler, more targeted approach to magnesium.

Product Information
Medicinal Ingredients
Ingredient Amount
Elemental Magnesium 50 mg (From Magnesium L-Threonate 625 mg
Also Contains

Water-soluble cellulose, cellulose, dicalcium phosphate, vegetable stearic acid, silica, vegetable magnesium stearate.

NON-GMO. NO gluten, lactose, artificial colours, flavours or preservatives.

Directions

Adults: Take 1 capsule daily. Store between 15°C - 25°C, away from children.

Ideal For: • Adults looking to support their cognitive health, including ability to focus • Individuals supporting normal muscle function, including heart muscle • Those seeking a highly absorbable magnesium supplement • People who prefer a single-form (non-blended) magnesium Not Intended For: • Children • Pregnancy/breastfeeding unless advised by a healthcare professional • Individuals with kidney conditions should consult a healthcare professional
NPN: 80143940 SKU: 31002418 UPC:064642103413
$25.99 $0.43 per serving
100% Pure Magnesium L-Threonate
$25.99

How does Magnesium L-Threonate work?

Magnesium plays a role in many essential functions in the body, including muscle function, electrolyte balance, and energy production.

Magnesium L-threonate is a form of magnesium bound to threonic acid, a compound derived from vitamin C metabolism. This structure influences how the magnesium is transported and utilized in the body.

Is Magnesium L-Threonate Right For You?

Jamieson Magnesium L-Threonate is best suited for those who prefer a lower-dose, single-form magnesium rather than a high-dose or blended product. If you're comparing magnesium types, this format is often selected for its simplicity and single-ingredient composition.*

How Does Magnesium L-Threonate Work?

Magnesium plays a role in many essential functions in the body, including muscle function, electrolyte balance, and energy production.

Magnesium L-threonate is a form of magnesium bound to threonic acid, a compound derived from vitamin C metabolism. This structure influences how the magnesium is transported and utilized in the body.

Frequently asked questions

Magnesium L-threonate is used as a source of magnesium to help support overall health. Magnesium plays a role in muscle function, electrolyte balance, and energy metabolism. This form is often chosen by those looking for a specific type of magnesium rather than a blended or high-dose option.

This product provides magnesium exclusively in the L-threonate form, rather than blending multiple forms of magnesium. This ensures all magnesium comes from a single, highly bioavailable source.

Magnesium L-threonate is a form of magnesium bound to L-threonic acid. It is known for its high bioavailability, allowing magnesium to be easily absorbed and used by the body.

Magnesium L-threonate provides a lower amount of elemental magnesium because of how the compound is structured. The total weight includes both magnesium and the compound it is bound to, so the elemental magnesium per serving is lower compared to some other forms.

Take the recommended daily dose (1 capsule daily) as directed on the product label. Magnesium L-threonate can typically be taken daily as part of your routine, with or without food. Always follow the recommended dosage and consult a healthcare professional if you have questions about use.

Learn More About Magnesium L-Threonate

Learn how Magnesium L-Threonate supports superior absorption and gentle digestion — plus what to look for when choosing the best magnesium supplement for your needs.

Read the Article

Why Choose Jamieson

Trusted for Over 100 Years

Proudly Canadian since 1922 and trusted for our leading quality standards.

Comprehensive Quality Assurance

Every formula is tested for purity, potency, and consistency in cGMP facilities.

Pure & Traceable Ingredients

Carefully selected ingredients tested for quality and contaminants.

Researched & Effective Formulas

Developed using the latest research & guided by our Scientific Advisory Board.

Overall rating: 4.857143 / 5 from 7 reviews.

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Works very well.

"Works very well."

— Cassandra W. (5/5)

💪🏼🤙🏼

"💪🏼🤙🏼"

— Hachem M. (5/5)

No side effects. Slight positive

"No side effects. Slight positive improvement in digestive behaviour."

— Stuart B. (4/5)

Really helps

"Really helps"

— Manon R. (5/5)

Thank you very much for

"Thank you very much for quality products."

— Catherine W. (5/5)

Good quality.

"Good quality."

— THOMAS T. (5/5)

"Canadian 🇨🇦"

— RawLu (5/5)

Q&A

Is it safe for seafood, shellfish and fish allergies?
As a measure of safety, Jamieson includes information regarding priority allergens, such as fish and shellfish, on the product label where any such ingredient may be present. We choose our ingredients very carefully and attempt to minimize the use of any potentially allergenic substances whenever possible. Our 100% Pure Magnesium L-Threonate contains no ingredients from seafood or shellfish. That said, depending on the severity of your allergy, it may be important to note that we are not an allergen free facility.