9. Headaches and Migraines
Frequent headaches and migraines may also be a sign of magnesium deficiency. Researchers have found that individuals who suffer from migraines often have lower levels of magnesium. Magnesium can help to relax blood vessels in the brain and prevent the overexcitation of nerve cells that can lead to migraine pain. Increasing magnesium intake has been shown to reduce the frequency and severity of migraines for many people.