Northfield Labs Magnesium L-Threonate
Northfield Labs · Demo
- Primary ingredient
- Magnesium L-Threonate
- Per serving
- 144 mg elemental magnesium
- Servings
- 30
- Format
- Capsules
- Price
- $44.99*
- Per serving cost
- $1.50
Manufacturer claim only
Magnesium form
Magnesium L-Threonate
In short
A newer, premium-priced form marketed for brain health. It contains a low percentage of elemental magnesium, and human research is early.
At a glance
- Compound
General reference - Magnesium salt of L-threonic acid
- Approx. elemental magnesium
SuppScout calculation - ~8% by weight
- Typical formats
General reference - Capsules, powders
- Form-specific research
Published research - Early and limited in humans
- Price
General reference - Usually highest cost per 100 mg elemental
SuppScout calculation About 8% elemental magnesium by weight.
About magnesium l-threonate
What it is
Magnesium L-threonate was developed to raise magnesium in the brain based on animal research. Because the threonate portion is heavy, a typical daily serving provides a relatively small amount of elemental magnesium.
What the research says
Human studies are few and small. When comparing products, note how little elemental magnesium each serving provides and what that means for cost per 100 mg.
Magnesium L-Threonate products
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Shopping for magnesium L-Threonate?
Before you buy, check the label for the form and amount per serving, look for a USP, NSF or Informed Choice seal, and compare cost per serving rather than bottle price.
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Other magnesium forms
Sources & references
- Magnesium: Fact Sheet for Health Professionals. NIH Office of Dietary Supplements. ods.od.nih.govGovernment
SuppScout links to primary and authoritative sources wherever possible. See our editorial policy for how sources are selected and how corrections are handled.
This page is educational and is not medical advice. Talk to a healthcare professional before starting a supplement, especially if you have a medical condition, take medications, or are pregnant or breastfeeding.