Achalasia: nutrition therapy
Symptoms associated with achalasia may include difficulty swallowing, regurgitation, heartburn, weight loss, chest pain and coughing. An altered diet can help.
Six-food elimination diet (SFED)
The six-food elimination diet (SFED) is often a successful treatment for patients with eosinophilic esophagitis (EoE).
Endoscopy (upper GI)
![Upper GI Endoscopy](https://patient.gastro.org/wp-content/uploads/2021/09/CGH_patiented_UpperGI_2018-769x1024.jpg)
Upper GI endoscopy is a procedure to view the upper digestive tract, which includes the esophagus, stomach and beginning of the small intestine.
Endoscopic ultrasound (EUS)
![Endoscopic ultrasound (EUS)](https://patient.gastro.org/wp-content/uploads/2021/09/EUS.png)
An endoscopic ultrasound is a procedure performed by a gastroenterologist, who uses a combination of endoscopy and ultrasound to look at the digestive tract and nearby organs and tissues.
Gastroesophageal reflux disease (GERD)
![Gastroesophageal reflux disease (GERD)](https://patient.gastro.org/wp-content/uploads/2021/09/Generic_reflux-2.jpg)
Gastroesophageal reflux disease (GERD), or just acid reflux, is when stomach acid frequently flows back into the esophagus. Heartburn is the most common symptom of GERD.
Eosinophilic esophagitis (EoE)
![Eosinophilic esophagitis (EoE)](https://patient.gastro.org/wp-content/uploads/2021/09/CGH_Patient-Ed_EOE_2018-497x1024.jpg)
Eosinophilic esophagitis (EoE) is when white blood cells build up in the esophagus and may result in trouble swallowing, heartburn and reflux.
Barrett’s esophagus
![Normal esophagus and esophagus with Barrett's](https://patient.gastro.org/wp-content/uploads/2021/08/CGH-PatientEd-Barretts-2020-min-1024x693.jpg)
Barrett’s esophagus is when the cells lining the esophagus — the tube connecting the mouth to the stomach — change into the cells lining the intestine. The test for Barrett’s is an endoscopy.