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Kappa Nutrition

Kappa Nutrition Magbrain Magnesium L-Threonate

  • 420 mg elemental magnesium per 3 capsules, from 2,253 mg
  • 120 vegan capsules
  • Magnesium L-Threonate, Magbrain form

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A magnesium L-threonate capsule for people who want a brain-focused magnesium in a plant-based form. Three capsules make a serving, and the bottle is not a long supply.

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ASIN: B08MTNZH1LCategory: Magnesium Supplements

Overview

Kappa Nutrition builds this capsule around the Magbrain form of magnesium L-threonate. The vegan formula is aimed at brain health, sleep, focus and muscle function.

This form is chosen by people who want magnesium aimed at brain support. The vegan capsule suits plant-based diets. The elemental amount depends on taking all the capsules in a serving.

Who it's for

People who want L-threonate specifically for focus and sleep. Those wanting a common magnesium in a bulk bottle should look at citrate.

Pros and cons

Pros
  • Magbrain L-threonate form
  • Stated elemental amount
  • Brain and sleep focus
Cons
  • Several capsules per serving
  • Bottle covers limited servings

Performance notes

The elemental magnesium figure is the amount that counts, and it comes only from a full serving. L-threonate is the form marketed for brain use. Regular nightly use is typical.

Specifications

BrandKappa Nutrition
Supplement TypeMagnesium L-Threonate
FormCapsule
DietVegan
Count120 Count
FlavorUnflavored
BenefitsBrain health, focus, restful sleep, muscle function
Elemental Magnesium per serving420 mg (3 capsules)

Frequently asked questions

How should I store Kappa Nutrition Magbrain?

The listing gives no storage directions. Follow the label.

How many capsules make a serving?

The title says three capsules provide 420 mg elemental magnesium.

Is it vegan?

Yes, the title says plant-based and 120 vegan capsules.