There is a wide variety of drugs and procedures available to effectively treat atrial fibrillation. One option involves simple changes to the patient's diet and lifestyle. Many times people who suffer from atrial fibrillation have a magnesium deficiency, which is a mineral that is absent in many diets. Any treatment with natural supplements like magnesium must be conducted in consultation and under the close supervision of a qualified physician. If your atrial fibrillation is caused by another condition like a heart valve disorder, then successful treatment of that disorder may effectively treat your atrial fibrillation.