What kind of interaction is it?

Synergy: a documented combination effect that is stronger or more useful than either substance taken alone.

Is this interaction backed by published research?

Yes. NutriStack lists 2 citation rows for the Magnesium Glycinate + Metformin pair, each linking to PubMed by PMID where available. Full sourcing methodology at https://nutristackapp.com/methodology/interactions.

Interaction databaseSupplement × PrescriptionReviewed May 2026

Magnesium Glycinate and Metformin, a synergy.

Q: Can I take Magnesium Glycinate and Metformin together?

Yes. The combination of Magnesium Glycinate and Metformin produces a measurable benefit. Magnesium is a cofactor for insulin receptor signaling and low intracellular magnesium contributes to insulin resistance, a problem common in type 2 diabetes. Meta-analyses show oral magnesium supplementation modestly lowers fasting glucose, HbA1c, and HOMA-IR. Combined with metformin the effect is complementary, with both targeting insulin resistance through different mechanisms and a low risk of hypoglycemia.

Q: How does this affect a NutriStack Stack Score?

+2 to your Stack Score per scored synergy row.

Magnesium is a cofactor for insulin receptor signaling and low intracellular magnesium contributes to insulin resistance, a problem common in type 2 diabetes. Meta-analyses show oral magnesium supplementation modestly lowers fasting glucose, HbA1c, and HOMA-IR. Combined with metformin the effect is complementary, with both targeting insulin resistance through different mechanisms and a low risk of hypoglycemia.

2 primary source citations. Moderate evidence. Last verified May 30, 2026.

Open the interaction checker →Read the methodology

One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.

Sourcing standards·Evidence tiers

From the interaction database

What the row says.

Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.

At a glance

Substances: Magnesium Glycinate and Metformin
Pair type: Synergy
Evidence (highest tier): Moderate
Source citations: 2 sources
Stack Score effect: +2 to your Stack Score (per scored synergy row).
Scope: Supplement × Prescription
Last verified: May 30, 2026

Synergy · Moderate evidence

Synergy

What is happening. Magnesium is a cofactor for insulin receptor signaling and low intracellular magnesium contributes to insulin resistance, a problem common in type 2 diabetes. Meta-analyses show oral magnesium supplementation modestly lowers fasting glucose, HbA1c, and HOMA-IR. Combined with metformin the effect is complementary, with both targeting insulin resistance through different mechanisms and a low risk of hypoglycemia.

Mechanism. Magnesium is required for autophosphorylation of the insulin receptor tyrosine kinase and for GLUT4 translocation. Metformin activates AMPK, reduces hepatic gluconeogenesis, and improves peripheral insulin sensitivity. The mechanisms converge on improved insulin signaling.

Recommendation. If you take metformin and your dietary magnesium is low or you have leg cramps, magnesium supplementation (typically 200-350 mg elemental magnesium/day) is reasonable. Routine glucose monitoring is sufficient.

Sources (2)

Stack Score

How this pair moves the number.

Effect on the composite score

If both Magnesium Glycinate and Metformin are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).

The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.

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