Ben Greenfield: Your Magnesium Supplements Are Probably Useless. Here’s Why.

Key Takeaways

• Use magnesium L-threonate (Magtein) specifically for brain benefits – most other magnesium forms don’t effectively cross the blood-brain barrier.
• Take 140mg of magnesium L-threonate for cognitive enhancement, synaptic plasticity, and memory improvement.
• Higher brain magnesium levels correlate with increased synaptic density and plasticity (learning/memory capacity).
• Magnesium L-threonate may help both strengthen positive neural connections and weaken negative ones (useful for PTSD/trauma).

Supplements & Protocols Mentioned

• Magnesium L-threonate (Magtein) – 140mg dose mentioned (taken before podcast)

Notable Quotes

“We found magnesium L-threonate is the only compound that can effectively elevate brain magnesium among all magnesium compounds tested.”

“Elevating brain magnesium increases synaptic density and makes each synapse more plastic (adaptable).”

Bottom Line

For brain-specific benefits like memory, learning, and neural plasticity, use magnesium L-threonate (not other forms) at ~140mg doses – it’s the only form proven to effectively raise brain magnesium levels.

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