Been down this road, was prescribed the drugs which cause more long term harm than good and sought an alternative. AFIB is considered common among older people as well as athletes but its not normal!! This is what caused me to spend nearly 2 years diving into nutrition to try and find a cause for mine and boy did I learn a lot along the way. For starters, beta blockers have not shown to increase life expectancy so why are they given, especially considering the long term effects on health? Im happy to report that my worsening afib is now almost nonexistent after about a year of self treatment. Assuming your condition isnt due to hyperthyroidism (which is often a result of too little iodine/selenium) you have to ask yourself what nutrients effect the heart either directly or indirectly and what exactly causes the heart to beat? Nerve signals are what causes the heart to beat and if they get disrupted so can your heart beat. Many of the B vitamins are critical to nerve function and for many reasons people can have problems getting enough of the various B's. Even if they supplement the forms can be wrong or quality low. Iodine is also critical for proper heart function as well as electrolytes and/or their balance. What I have found is that docs today want to use their fancy machines like ECG, EKG etc but they gloss over important simple lab tests or do the wrong ones. Did your Doc check your lipoprotien A levels? How about homopcystine? how about urinary MMA? magnesium and potassium RBC levels? What about homocystine? All of these important indicators of what may be going on but docs have long ago lost the knowledge to treat people by giving the body what it needs and instead just dole out meds that do little. Afib is a common precursor to cardiac arrest due to clogged arteries. We hear it quite often that joe blow, an avid runner and healthy eater just dropped dead of a heart attack or jane doe who had a heart attack jhust weeks after a checkup where doc said she was fine and her symptoms were just part of growing old. They ignore the issues, almost all of them can be treated with time and targeted nutritional supplementation.