ByDr. Brennan Commerford, D.C.·Last reviewed: April 2026
Magnesium

Magnesium L-Threonate vs Magnesium Lysinate Glycinate Chelate: Which Magnesium Is Better?

Evidence-based comparison of bioavailability, absorption, and clinical use — 2026

Quick Answer

Magnesium L-Threonate vs Magnesium Lysinate Glycinate Chelate: which is right for you?

Not sure which to buy? Both Magnesium L-Threonate and Magnesium Lysinate Glycinate Chelate are valid forms of Magnesium.

✓ Top Pick: Magnesium L-Threonate

FF Available + Preferred

Magnesium L-Threonate

Magnesium (as Magnesium L-Threonate)

Verification pending

vs

Magnesium Lysinate Glycinate Chelate

Magnesium (as Magnesium Lysinate Glycinate Chelate)

Verification pending

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Citations
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High Absorption
Absorption
—
Highly Rated
Ranking
Mapped Form
Mineral, Cognitive Support, Memory Enhancement, Neuroprotective
Suited to
Mineral, Muscle Function, Sleep Support, Stress Relief, Bone Health, Cardiovascular

Absorption & Bioavailability

Magnesium L-Threonate vs Magnesium Lysinate Glycinate Chelate is one of the most commonly compared pairs of Magnesium forms. The research on each is summarized below.

Magnesium L-Threonate shows good absorption and is classified as Secondary Form in the FormulaForge formulary. Magnesium Lysinate Glycinate Chelate is classified as Mapped Form.

Magnesium L-threonate is unique among magnesium forms in its ability to cross the blood-brain barrier and raise cerebrospinal fluid magnesium levels. This makes it the only form specifically targeting brain health, while other forms primarily support peripheral magnesium status.

Dosing Comparison

Dose ranges for different forms should not be compared interchangeably. Speak with your healthcare provider to determine the appropriate dose for your goals.

Side Effects & Tolerability

Both Magnesium L-Threonate and Magnesium Lysinate Glycinate Chelate are generally well-tolerated at recommended doses. Always consult a healthcare provider before starting any new supplement, particularly if you have existing health conditions or take medications.

Consult your healthcare provider before starting or changing a supplement regimen. These statements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease.

Who Should Choose Magnesium L-Threonate vs Magnesium Lysinate Glycinate Chelate?

Choose Magnesium L-Threonate if: your healthcare provider has recommended it for a specific therapeutic goal, or you require a specialist form not covered by the top-ranked preferred option.

Choose Magnesium Lysinate Glycinate Chelate if: you already use this form and prefer to keep it.

Speak with your healthcare provider for personalized guidance. The best Magnesium form for you depends on your individual health goals, existing nutrient status, and the dose your provider recommends.

These statements are based on structure/function research and have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare provider before starting or changing a supplement regimen.

Frequently Asked Questions

Is Magnesium L-Threonate better than Magnesium Lysinate Glycinate Chelate?
Magnesium (as Magnesium L-Threonate) is classified as Secondary Form by FormulaForge, while Magnesium (as Magnesium Lysinate Glycinate Chelate) is Mapped Form. This reflects a research-based assessment of relative bioavailability for each form. "Better" depends on your individual goals and healthcare provider's guidance — the higher-tier form generally indicates more efficient absorption.
What is the difference between Magnesium L-Threonate and Magnesium Lysinate Glycinate Chelate?
Magnesium (as Magnesium L-Threonate) and Magnesium (as Magnesium Lysinate Glycinate Chelate) are two distinct chemical forms of Magnesium. Magnesium L-Threonate has a bioavailability rating of good and is classified as Secondary Form, while Magnesium Lysinate Glycinate Chelate is classified as Mapped Form. These differences mean the two forms are not interchangeable at equal doses and may suit different health goals.
Which form of Magnesium is best absorbed — Magnesium L-Threonate or Magnesium Lysinate Glycinate Chelate?
Based on FormulaForge bioavailability data, Magnesium (as Magnesium L-Threonate) has a higher absorption rating (good) compared to Magnesium (as Magnesium Lysinate Glycinate Chelate). Higher bioavailability means more of the active compound reaches systemic circulation per dose unit. We do not publish raw dose conversion ratios or proprietary calculation methodology.
Can I switch from Magnesium Lysinate Glycinate Chelate to Magnesium L-Threonate?
Switching between Magnesium Lysinate Glycinate Chelate and Magnesium L-Threonate is possible but requires dose adjustment due to differences in bioavailability. Because the two forms have different absorption rates, an equal milligram dose will not deliver the same absorbed amount. Always consult a qualified healthcare provider before starting, stopping, or adjusting any supplement regimen. Do not self-adjust dosing when switching supplement forms.
What does research say about Magnesium L-Threonate vs Magnesium Lysinate Glycinate Chelate?
Published bioavailability research forms the basis for FormulaForge form classifications. Magnesium (as Magnesium L-Threonate) is rated good and classified as Secondary Form; Magnesium (as Magnesium Lysinate Glycinate Chelate) is classified as Mapped Form. FormulaForge citations are drawn from peer-reviewed absorption studies. These statements are based on structure/function research and have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease.

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References

  1. In a double-blind, placebo-controlled study of 109 healthy Chinese adults, a magnesium L-threonate (Magtein PS) based formula at 2 g/day for 30 days significantly improved memory and overall memory quotient scores versus placebo, with greater improvement in older participants. PubMed

FormulaForge formulates and sells supplements containing the ingredients discussed on this page. Our formulary recommendations are based on peer-reviewed bioavailability research. All cited studies are independently verifiable.