Usually doctors can tell if you have acid reflux by your symptoms. The # of times a week you have heartburn is pretty relevant. To be sure, however, they might want to scope you; to see what kind of damage (if any) has been caused to your esophagus by the reflux. Usually folks are prescibed Prevacid or Nexium to control the acid and help repair the damage.
Depending on what kind of insurance you have, and where you live, the scope could be anywhere from a couple hundred bucks to a couple thousand.
I'm not sure about
fiber supplement being considered food. Maybe dbab (or anyone) will be along to help you with that question.
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