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Product answer

Magnesium L-threonate dosage: serving size and directions

Check the directions on the exact product package. Recorded serving size is not a complete set of directions for use.

Mixed evidence Medium safety attention Experience: Early

Quick answer

The database records 3 capsules for Magtein Magnesium L-Threonate 667 mg. This entry alone does not confirm frequency, duration, age suitability, or route of use. Check the current package directions before use.

What to check next

Recorded serving: 3 capsules · Recorded active amount: 147 mg magnesium from 2 g Magtein · Exact package directions and warnings

Serving and label record

Recorded serving: 3 capsules

Recorded active amount: 147 mg magnesium from 2 g Magtein

Product form: Capsule

These are database entries, not a personalized dose recommendation. A serving size alone does not establish daily frequency, age suitability, duration, or route of use. Follow the directions on your exact package; formulations and country-specific labels can differ.

Record verification date: 2026-08-09

This date describes the product record; it does not confirm that every warning or allergen field has been reviewed.

Check the recorded product source

Allergens and inactive ingredients

Allergy-related notes in the database, not a complete verified allergen declaration:

  • Check active ingredient source, capsule, softgel, flavor, and excipient details.

Complete ingredient list, contains/may-contain statements, and manufacturing cross-contact information: not confirmed by this summary. Check the current package or manufacturer. Do not treat a dietary preference filter as an allergen guarantee.

Label Check

Last checked
2026-08-09
Next check
2026-09-08
Label confidence
Structured Source Review

Shown fields

Brand, Product Name, Category, Dosage Form, Serving Size, Ingredient Links, Dose Or Active Amount, Source Url

Can change

Price Per Serving, Availability, Servings Per Container, Label Warnings, Testing Claims

Ingredient expansion entry. Re-check current label, warnings, availability, and price before buying.

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What to compare

Check the directions on the exact product package. Recorded serving size is not a complete set of directions for use.

Product Context

Magtein Magnesium L-Threonate 667 mg is a Magnesium product from Source Naturals. Label context includes Capsule, serving size 3 capsules, Price context: retailer price was not available at last check; retailer prices can change.

Safety and Uncertainty

  • Compare dose, form, label warnings, and total intake before choosing.
  • Medication: Screen relevant medications before use.
  • Condition: Pregnancy, breastfeeding, chronic medical conditions, and unusual symptoms need professional guidance.
  • Allergy: Check active ingredient source, capsule, softgel, flavor, and excipient details.
  • Possible side effect: Digestive discomfort or intolerance can occur depending on ingredient and user context.
  • Pregnancy/Breastfeeding: Ask a healthcare professional before use during pregnancy or breastfeeding.
  • Ingredient context: Often marketed for cognitive support; evidence and cost should be compared carefully.

Results and fit can vary. Check the label and safety notes before choosing.

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