Magnesium Threonate BBB Permeability
The Blood-Brain Barrier Problem
Magnesium is a critical dampener of neuronal firing. However, most forms (Oxide, Citrate, Glycinate) are primarily absorbed into muscle or bone. They struggle to cross the tight junctions of the Blood-Brain Barrier (BBB), making them less effective for "racing thoughts" or neurological anxiety.
The L-Threonate Carrier
Magnesium L-Threonate is unique. The Threonate metabolite acts as a carrier, actively transporting magnesium ions across the BBB. Studies show it elevates cerebrospinal fluid magnesium levels significantly higher than other forms, directly modulating NMDA receptors to reduce neuronal excitability.
Usage Note
Magnesium Threonate is expensive. Use it specifically for Cognitive/Anxiety-based insomnia. For general physical relaxation, Bisglycinate is sufficient.
Clinical Context
This compound is frequently utilized in the Sleep Optimization and Cortisol Management protocols.
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