There is however, evidence that magnesium is effective in preventing migraine headaches associated with menstrual cycles and premenstrual syndrome. (mindbodygreen.com)
Magnesium also plays roles in preventing migraine headaches, cardiovascular disease (including high blood pressure, heart attacks, and strokes), sudden cardiac death, and even reduces death from all causes. (healthy-holistic-living.com)
In fact, in societies where fish is eaten regularly, the rate of rheumatoid arthritis is much lower than in areas where fish is not commonly eaten.The anti-inflammatory actions of the omega - 3 fats found in cod reduce the inflammation that is central to the symptoms and progression of rheumatiod and osteoarthritis, and may also help prevent migraine attacks, which are triggered by an inflammatory cascade that spreads from neuron to neuron in the brain called spreading depression. (whfoods.org)