Life Extension Neuro-Mag® Magnesium L-Threonate
vs
Metagenics Bone Builder® with Magnesium
Supplement Comparison

  • Magnesium: Metagenics Bone Builder® with Magnesium has 2.1× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 9 nutrients compared
Bar chart: per-serving label amounts and listed forms for Life Extension Neuro-Mag® Magnesium L-Threonate vs Metagenics Bone Builder® with Magnesium.

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Frequently asked questions

Which active ingredients does Life Extension Neuro-Mag® Magnesium L-Threonate have?

  • Magnesium appears as Magtein Magnesium L-Threonate

Which active ingredients does Metagenics Bone Builder® with Magnesium have?

  • Vitamin D appears as Cholecalciferol (D3)
  • Calcium appears as Calcium (MCHC, dicalcium phosphate)
  • Phosphorus appears as Phosphorus (MCHC, dicalcium phosphate)
  • Magnesium appears as Magnesium (citrate, aspartate, bis-glycinate)
  • Microcrystalline Hydroxyapatite Concentrate (MCHC)

Which categories do Life Extension Neuro-Mag® Magnesium L-Threonate and Metagenics Bone Builder® with Magnesium belong to?

  • Single Mineral
  • Joint Formula

What health concerns do Life Extension Neuro-Mag® Magnesium L-Threonate and Metagenics Bone Builder® with Magnesium address?

  • Brain, Focus & Cognitive Function
  • Men's Health
  • Sleep Quality
  • Muscle Support
  • Joint & Bone Health
  • Stress Management

Which product has a higher amount of Magnesium per serving?

  • Metagenics Bone Builder® with Magnesium has the highest total amount of Magnesium: 300 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Life Extension Neuro-Mag® Magnesium L-Threonate: 3 capsules
    • Metagenics Bone Builder® with Magnesium: 3 tablets
  • Vitamin D
    • This supplement has 600 IU
    • Recommended Dietary Allowance in men: 600 IU
    • Recommended Dietary Allowance in women: 600 IU
    • Tolerable Upper Intake Level: 4000 IU
  • Calcium
    • This supplement has 620 mg
    • Recommended Dietary Allowance in men: 1000 mg
    • Recommended Dietary Allowance in women: 1000 mg
    • Tolerable Upper Intake Level: 2500 mg
  • Phosphorus
    • This supplement has 350 mg
    • Recommended Dietary Allowance in men: 700 mg
    • Recommended Dietary Allowance in women: 700 mg
    • Tolerable Upper Intake Level: 4000 mg

Last updated: February 13, 2026

  • Sources & Methodology: Nutrient data and forms are taken directly from Supplement Facts labels. Reviewed and standardized by the VIOscan Research Team. Learn more on the Methodology page.
  • We show the Recommended Dietary Allowance (RDA) when available. If no RDA exists, we show the Adequate Intake (AI). Tolerable Upper Intake Levels (UL) are used for upper limits. Unless otherwise noted, RDAs shown correspond to healthy adults aged 19–50 years and are sex-specific. Separate values exist for 51–70 years and >70 years, and pregnancy and lactation are excluded. All values come from the Dietary Reference Intakes (DRIs) published by the National Academies of Sciences, Engineering, and Medicine (NASEM), Food and Nutrition Board (FNB).
  • Transparency: We’re funded by our users. We don’t have sponsors or affiliate links, and we don’t sell supplements.
  • Editorial standards: we provide independent, impartial and objective data analysis.
  • This analysis is for educational purposes only. It is not a substitute for medical advice.
  • Questions? Read our Frequently Asked Questions or contact us, we’re here to help.
  • See an error? Report it through our Contact page.
  • Author: VIOscan Research Team