CanPrev CanPrev - Magnesium Threonate, 120 vcaps
CanPrev Magnesium Threonate - provides 50mg of magnesium sourced from magnesium L-threonate to help in energy metabolism, tissue formation, muscle function, and overall health. Threonic acid is a water-soluble substance that’s formed when vitamin C is broken down in the body. When you combine magnesium and threonic acid, you get magnesium L-threonate.

Price
Regular Canadian retail price: $29.48 CAD. Price Vault members pay below retail on this product. Member pricing is private and shown after a free opt-in, with no membership fee, no minimum order and no subscription.
In stock. Free shipping across Canada on orders over $89, flat $9.95 under that. 30 days to request a return, with return shipping paid by the customer. Ships from Victoria, BC.
Why people keep reordering it
- Focus and clarity
- Supports concentration, memory and mental stamina.
- Nervous system support
- Nutrients that feed how your brain signals and recovers.
- A daily mental edge
- Built for consistent, long-term cognitive support.
Best suited to: wants a magnesium form aimed at brain support, sensitive stomach with other magnesium forms, already covers magnesium needs elsewhere and wants this specific benefit.
What the research supports
This is magnesium bound to L-threonate, delivering 50 mg of elemental magnesium per dose. Magnesium threonate is the form studied for its ability to cross the blood-brain barrier, so this product targets brain magnesium levels rather than just general muscle or sleep support. It also contributes to normal energy metabolism, tissue formation, and muscle function.
The research on magnesium L-threonate for cognitive support (the Magtein trials) used roughly 1.5 to 2 grams of the compound, delivering around 140 to 150 mg of elemental magnesium a day. At 50 mg per dose here, you would need to take considerably more than a single serving to approach that range, so check how many capsules make up a full daily amount before assuming you are hitting the studied dose.
- brain magnesium levels (evidence: limited, from small human rct, animal study)
- A small number of human and animal studies suggest magnesium L-threonate can raise magnesium concentration in brain tissue more than other magnesium forms, with some early trials linking this to memory and cognitive measures in older adults.
- muscle function and energy metabolism (evidence: strong, from human rct, meta-analysis)
- Magnesium as an element is well established as a cofactor in ATP production and normal muscle contraction, though this applies to magnesium generally rather than the threonate form specifically.
Read the literature: brain magnesium levels on PubMed, muscle function and energy metabolism on PubMed.
Is it right for you
Worth it if
- Wants a magnesium form aimed at brain support
- L-threonate is the specific magnesium compound shown in research to raise brain magnesium levels, unlike oxide or citrate forms.
- Sensitive stomach with other magnesium forms
- Threonate is not known for the laxative effect seen with magnesium oxide or citrate, since it is not primarily used to draw water into the gut.
- Already covers magnesium needs elsewhere and wants this specific benefit
- At 50 mg elemental magnesium per dose, this reads as an add-on for brain-targeted support rather than a primary source of daily magnesium.
Look elsewhere if
- Trying to hit full daily magnesium needs from one product
- Look at magnesium bisglycinate or citrate at 200 to 400 mg elemental per dose, which are cheaper ways to cover general intake.
- Wanting sleep or muscle relaxation as the main goal
- Magnesium glycinate or a bedtime-formulated magnesium blend at a higher elemental dose is better matched to that use than threonate.
- Expecting to match published cognitive research on a single serving
- Confirm the full recommended daily serving size, since multiple capsules may be needed to approach the roughly 140 mg elemental magnesium used in those studies.
What to expect
Magnesium threonate is not something you feel kick in. Any change in mental clarity or focus tied to brain magnesium levels, if it happens, tends to build over several weeks of consistent daily use rather than showing up in the first few days.
How it compares
- Compared with magnesium glycinate
- Threonate is the form specifically studied for crossing into brain tissue, which glycinate is not shown to do. The tradeoff: Threonate products deliver much less elemental magnesium per capsule, so you need more capsules and more cost to reach a comparable magnesium dose.
- Compared with magnesium oxide
- Threonate is far better absorbed and does not rely on a laxative effect to work. The tradeoff: Oxide is cheap and delivers a large elemental dose per capsule, so it is more practical for someone who just wants inexpensive general magnesium.
Product details
- Active ingredient
- CanPrev - Magnesium Threonate
- Ingredient form
- vcaps
- Servings per container
- 120
- Country of manufacture
- Canada
- Independent testing
- independent laboratories
- Certifications
- Non-GMO, Made in Canada
- Storage
- Store in a cool, dry place
- Brand
- CanPrev
How to take it
Take 1 to 2 capsules daily with food, or as directed by your healthcare practitioner.
- Store in a cool, dry place away from direct light.
- Keep out of reach of children.
- Consult a practitioner if you are pregnant, nursing or on medication.
Interactions and cautions
- Medications
- May interact with certain prescription medications. Review with your pharmacist if you take daily medication.
- Timing
- Separate from medications by 2 to 4 hours unless directed otherwise by a healthcare practitioner.
- Pregnancy and breastfeeding
- Consult a healthcare practitioner before use if pregnant or breastfeeding.
- General
- Use only as directed. Discontinue and consult a practitioner if you experience an adverse reaction.
This product is not intended to diagnose, treat, cure or prevent disease. Consult a healthcare practitioner before use. Free certified advisors are available at 1-888-386-1211, Mon to Fri, 9am to 5pm PT.
Questions about CanPrev - Magnesium Threonate
- Is this the genuine, authentic product?
- Yes. It is identical to what you would pay full price for anywhere else, sourced through our authorized supplier relationships.
- How is the price below retail?
- We buy direct, with nobody in the middle taking a cut, and we sell it for close to what we paid. You see the price privately because you have unlocked the Vault.
- How fast does it ship?
- Orders placed before 12pm PT are processed the same day and ship within two business days. Shipping is free over $89, and a flat $9.95 under that.
- Can I return it?
- You have 30 days after it arrives to request a return. Product must be unused, in its original packaging, with proof of purchase, and return shipping is paid by you. Find it cheaper anywhere in Canada and we will match the price.