Marketing Narrative

The article rejects the claim that magnesium L-threonate is the only magnesium form capable of reaching the brain. The claim that magnesium L-threonate is the only magnesium form crossing the blood-brain barrier arose from an overextended interpretation of narrower research. The magnesium L-threonate story spread partly because simple claims are more memorable than nuanced claims. Positioning magnesium L-threonate as expensive and brain-exclusive creates a commercial incentive to treat it as categorically superior.