Oesophageal reflux - also called gastro-oesophageal reflux disease (gord) - is a common cause of symptoms of upper tummy (abdominal) pain and chest pain it is caused by acid from the stomach leaking up into the gullet (oesophagus) some foods are more likely to trigger reflux symptoms and it may help to look at how you eat as well as what you eat. Acid reflux foods to avoid chart uk. Acid reflux foods to avoid the following foods have all been linked with acid reflux, but further research is needed however, that's not to say sufferers won't find benefits from reducing or.