Low levels of magnesium in the brain are linked to Cortical Spreading Depression, the electrical wave that causes migraine aura. Magnesium helps block NMDA receptors, preventing nerves from becoming over-excited.
Not all magnesium is equal. Neurologists recommend Magnesium Glycinate or Magnesium Threonate because they are highly absorbable and less likely to cause gastrointestinal side effects compared to Magnesium Citrate. The standard preventive dose is 400–600 mg daily.
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