Migraine Headaches Support Group
Migraine is a neurological disease, of which the most common symptom is an intense and disabling episodic headache. Migraine headaches are usually characterized by severe pain on one or both sides of the head and are often accompanied by photophobia (hypersensitivity to light), phonophobia (hypersensitivity to sound) and nausea.
Now supplements are not FDA regulated so I look for where the ingredients originated from and what's added to the magnesium. PURE Encapsulation brand has the best reputation of supplements out there but very expensive.
I worked my way up to 800 mg.