31002187 Jamieson 100% Pure Magnesium Bisglycinate mineral supplement bottle packaging with label: 2026 Best New Product for Magnesium Supplements in a 2026 BrandSpark® Survey
31002187 Jamieson 100% Pure Magnesium Bisglycinate mineral supplement bottle packaging with label: 2026 Best New Product for Magnesium Supplements in a 2026 BrandSpark® Survey
Bottle of Jamieson 100% Pure Magnesium Bisglycinate supplement with vegetarian, non-GMO, gluten-free, and lactose-free icons on a colorful background.
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Bottle of Jamieson 100% Pure Magnesium Bisglycinate supplement with vegetarian, non-GMO, gluten-free, and lactose-free icons on a colorful background.
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100% Pure Magnesium Bisglycinate

Single-source magnesium bisglycinate supplement with no blends for superior absorption.

  • 100% magnesium bisglycinate, no blended forms
  • Highly bioavailable for superior absorption
  • Expertly formulated for purity & potency
  • 100 mg of pure magnesium bisglycinate
  • Helps maintain normal muscle function, including the heart muscle
  • Helps maintain normal electrolyte balance
  • Voted 2026 Best New Product for Magnesium Supplement by Canadians in a 2026 BrandSpark® survey

Choose a magnesium without blends, fillers, or guesswork.

$14.39 $17.99 $0.20 per serving
Size
Dietary Features
Non-GMOVeganLactose-FreeGluten-FreeNaturally-Sourced

About Jamieson 100% Pure Magnesium Bisglycinate

Jamieson 100% Pure Magnesium Bisglycinate capsules provide 100 mg of elemental magnesium exclusively from magnesium bisglycinate with no blended magnesium forms. This focused formula is designed for adults seeking a clean, transparent magnesium supplement that supports muscle function, electrolyte balance, bone development, and energy metabolism.

What Makes it Different?

Unlike blended magnesium products that combine oxide, citrate, or lower-quality forms, this formula contains only magnesium bisglycinate. Its highly bioavailable structure allows magnesium to absorb easily while remaining gentle on the stomach.

Product Information
Medicinal Ingredients
Ingredient Amount
Elemental Magnesium (Bisglycinate) 100 mg
Also Contains

Silica, vegetable magnesium stearate, water-soluble cellulose.

Directions

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

NPN: 80131651 SKU: 31002187 UPC:064642101846
$14.39 $17.99 $0.20 per serving
100% Pure Magnesium Bisglycinate
On Sale from $14.39

How to Choose a Magnesium Bisglycinate Supplement*

Some brands list high amounts of “elemental magnesium” on the front of their packaging. But here’s the catch—they’re often referring to total magnesium from all sources, including Magnesium Oxide, a less bioavailable ingredient that’s also tough on digestion.

Jamieson 100% Pure Magnesium Bisglycinate is ideal for adults looking for a single-form magnesium supplement with superior absorption and no blended magnesium sources.

Check your label. If it doesn’t say 100% Pure Magnesium Bisglycinate, it’s not the best.

How To Read A Magnesium Label

What you’ll notice Blended Magnesium 100% Pure Magnesium Bisglycinate
Label language “Elemental Magnesium” “100% Pure Magnesium Bisglycinate”
Amount of bisglycinate ??? 100 mg
Bioavailability Lower High
Stomach impact Can cause discomfort Gentle on the stomach
Absorption Low to moderate Absorbs easily

*It is important to consult your trusted healthcare practitioner before adding any new natural health supplement to your routine.

The Benefits of 100% Pure

A Single-Form Magnesium Formula

This product contains only magnesium bisglycinate — no oxide, citrate, or other blended magnesium forms. That means greater transparency about the magnesium source and no uncertainty about what’s inside your supplement.

If you're shopping for a magnesium bisglycinate supplement, there are a few things you should know:

  • Blended magnesium formulas may appear potent but can contain very little magnesium bisglycinate
  • “Elemental magnesium” refers to quantity, not magnesium quality or source
  • If the label doesn’t clearly say “100% Pure Magnesium Bisglycinate,” it likely includes other magnesium forms

Frequently asked questions

Magnesium bisglycinate is used as a source of magnesium to help support muscle function, electrolyte balance, bone development, tissue formation, and energy metabolism. It is commonly chosen for its high bioavailability and gentle digestion profile.

No. This product contains 100% magnesium bisglycinate exclusively, without oxide, citrate, or any additional magnesium forms.

Magnesium bisglycinate is known for its high bioavailability, meaning it can be easily absorbed and utilized by the body. It is also commonly preferred for being gentle on the stomach.

It means all magnesium in the formula comes exclusively from magnesium bisglycinate, without blending in lower-cost magnesium forms.

Some products combine multiple magnesium forms to increase total elemental magnesium levels or reduce manufacturing costs. However, these blends may contain lower amounts of magnesium bisglycinate than you might expect.

Learn More About Magnesium Bisglycinate

Discover more about magnesium, bioavailability, muscle function, and how different magnesium forms compare.

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: 4.625 / 5 from 16 reviews.

AI Generated Review Summary

Summary topics

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Review highlights

Reviews

THE BEST CHOICE

"I've been using this product ever since you launched it. It's great. Helps me sleep better, it has a calming experience, and most importantly, it helps me resolve my magnesium deficiency. Thank you Jamieson, you're my number choice for supplements!"

— Daniel D. (5/5)

Excellent product

"Taking the magnesium has helped with confounding and nagging muscle spasms."

— Ron M. (5/5)

Ok

"Ok"

— Lorne P. (5/5)

Quality product!

"Calm guts, sweet dreams!😴"

— Louis B. (5/5)

Thanks for offering pure Mg Glycinate at a reasonable price

"Tablets of 100 mg that could be broken in half would help when one is titrating to bowel tolerance. Please try to offer that at a reasonable price too and educate public to understand biochemical individuality ."

— Linda R. (5/5)

Magnesium Bisglycinate

"Very pleased! The only magnesium product that helps me sleep better and doesn’t give me diarrhea!"

— Suzanne C. (5/5)

I like them

"I like them"

— Karen R. (5/5)

Magnesium Bisglycinate

"This supplement has really helped me with regularity. I highly recommend it!"

— Estelle B. (5/5)

It’s ok

"It’s ok"

— Cathy W. (3/5)

♥️♥️♥️♥️

"♥️♥️♥️♥️"

— maryam r. (5/5)

Q&A

Can I take this with food and other vitamins including omega 3 and a multivitamin?
Yes, this product can be taken with food and other supplements.
Is it safe/ OK to take 2 capsules a day? I used to take one 200 MG of another product but it has since been discontinued. I found it very good and would like to continue with 200 mg
Thank you for your interest! Yes, our own magnesium products include doses up to 500 mg per caplet which are licensed and approved by Health Canada. A potency of 100 mg allows some flexibility to meet individual needs. That said, we recommend using each formula as indicated on the product label and consulting a trusted health care practitioner for personalized guidance.
My 5 year old struggles with falling asleep due to his ADHD. His pediatrician recommended I give him Magnesium 100-150mg before bed to help him relax and sleep better. Is this product safe for that?
Hi Sarah. We'd recommend showing the product to your health care practitioner (or pharmacist) to be sure this form and dose are the right match for their recommendation. As a manufacturer we must limit our product suggestions to the product license which indicates this is an adult product. Your doctors recommendation is most important so we would refer you back to them to approve your selection. Please be aware of the potential choking hazard if using capsules for a child and consider opening the capsule to add the contents to a small amount of food such as apple sauce or yogurt. Unfortunately the contents are not formulated to taste nice. Again, please consult a qualified health care practitioner for personalized guidance.
Is it 100mg of pure magnesium or 100mg of bisglycinate per capsule?
Hi Tomas, each capsule contains 100 mg of Magnesium Bisglycinate. Hope this helps!
I just bought the capsules for the first time. They are so big that I have trouble swallowing them. Can I take the capsules apart and add the powder to water or juice?
Yes, the capsule can safely be opened and added to a small amount of food if you wish. Please note that this is not the intended delivery method. The powder is not formulated to taste nice and may be quite bitter and unpalatable. A helpful tip for swallowing capsules is to keep the chin lowered while swallowing, in the same position as if swallowing a mouthful of food or slightly lower. Raising the chin opens airways and can make swallowing more difficult.