Share on facebook Share on Twitter Share on Google Plus Share This

Gastroenterology

Center for Food Related Diseases

Foods can trigger a variety of symptoms – including belching, excessive gas, fatigue, irregular bowel movements (IBS), difficulty swallowing, insufficient weight gain (failure to thrive) and repetitive vomiting. If you are experiencing any of these symptoms, you may be having a reaction to a certain food or types of food.

The Center for Food Related Diseases at Tufts Medical Center in downtown Boston offers specialized experts who will work with you to address your unique symptoms, possible food triggers and develop an individualized diet and/or medical treatment plan.

Led by John Leung, MD, the first US-trained physician to be triple-board certified in Allergy/Immunology, Gastroenterology and Internal Medicine, our program offers a unique and total perspective on how the food you eat may be causing your gastrointestinal symptoms. Whether you have severe symptoms or more common, uncomfortable reactions to food, our experts are here to help.

Some of the most common conditions we see are:

  • Eosinophilic esophagitis (EoE) – We are the largest EoE program in New England.
  • Eosinophilic gastrointestinal diseases (EGID)
  • Celiac disease
  • Food protein induced entercolitis syndromes (FPIES)
  • Non-celiac gluten sensitivity
  • Food intolerances (i.e. lactose, nuts)

Determining the cause of your symptoms

The Center for Food Related Diseases team works with each patient to determine which foods or types of foods are triggering your symptoms. We’ll start this process by asking you questions about your medical history and symptoms. 

We’ll then use what we’ve learned to determine if any additional testing is needed; this testing may include blood work and immunological studies, imaging, motility testing, hydrogen breath testing or an endoscopy.

Dietary and medical treatment plans

Once we’ve identified your trigger food or foods, our team will work with you to develop a dietary plan. If we recommend that you eliminate certain foods from your diet, we work closely with you to ensure that you can avoid any nutritional deficiencies. For example, if we determine that you have celiac disease, we’ll work with you to find gluten alternatives to meet your nutritional needs and minimize impact on your lifestyle.

What makes our program unique is that we don’t just send you off with a piece of paper or chart outlining your new diet – we make ourselves readily available to our patients whenever they have questions. You can reach Dr. Leung directly any time via e-mail at jleung3@tuftsmedicalcenter.org or phone by calling the clinic.

If medical treatment is required to treat the effects of your symptoms, our physicians offer the full range of services available.  

Meet our team

The Center for Food Related Diseases at Tufts MC is comprised of key experts who specialize in conditions caused by reactions to food. 

Program Director John Leung, MD specializes in eosinophilic esophagitis, gastrointestinal disorders, food intolerance, as well as other allergic and immunologic conditions. Dr. Leung has co-authored numerous peer-reviewed articles, abstracts, book chapters and online tutorials on food-related conditions. He is also the site principal investigator for multiple NIH-funded and pharmaceutical sponsored studies on these conditions and is an investigator for the Consortium of Eosinophilic Gastrointestinal Disease Researchers (CEGIR). These grants and his leadership in the EoE research community makes our Center the most funded EoE research program in Boston and allows us to offer cutting-edge treatments to patients.

Our team also includes Dr. Joel Weinstock, a world renowned mucosal immunology physician scientist, Dr. Mark Sterling, Dr. Rob Yacavone and Dr. Moises Guelrud, our advanced endoscopists, and our neurogastroenterologists, Dr. Harmony Allison and Dr. Aaron Dickstein, who specialize in gut motility dysfunction associated with food intolerances.   

Joel V. Weinstock, MD

Joel V. Weinstock, MD

Accepting New Patients

Title(s): Chief, Division of Gastroenterology/Hepatology; Professor, Tufts University School of Medicine
Department(s): Medicine, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-4505

Gastroenterology, inflammatory bowel diseases, mucosal immunity, general gastroenterology, GI bleeding, endoscopy

View Full Profile

Harmony Allison, MD
powered by Zoc Doc

Harmony Allison, MD

Accepting New Patients

Title(s): Gastroenterologist; Clinical and Research Instructor, Tufts University School of Medicine
Department(s): Medicine, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-1480

Gastrointestinal motility, inflammatory bowel disease, general GI and endoscopy, diarrhea, constipation, celiac sprue and limited LFT abnormalities

View Full Profile

Aaron M. Dickstein, MD
powered by Zoc Doc

Aaron M. Dickstein, MD

Accepting New Patients

Title(s): Gastroenterologist; Director, Gastroenterology Fellowship Program; Assistant Professor, Tufts University School of Medicine
Department(s): Medicine, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-9292

General gastroenterology, gastrointestinal endoscopy and colonoscopy, gastrointestinal motility, obscure GI bleeding, fecal microbiota transplantation, video capsule endoscopy

View Full Profile

John Leung, MD
powered by Zoc Doc

John Leung, MD

Accepting New Patients

Title(s): Director, Center for Food Related Diseases at Tufts Medical Center; Co-Director, Food Allergy Center at Floating Hospital for Children; Allergist; Assistant Professor, Tufts University School of Medicine
Department(s): Medicine, Pediatric Allergy, Gastroenterology, Pediatric Gastroenterology
Appt. Phone: 617-636-5883 (Gastroenterology)
Fax #: 617-636-9292

Allergic rhinitis (seasonal allergy), anaphylaxis, angioedema, asthma, celiac disease, chronic urticarial (hives), drug allergies, eczema, eosinophilic esophagitis/eosinophilic gastrointestinal disorders, food allergy (e.g. peanuts, cow milk, soy, etc.), food intolerance (lactose, fructose, fructan), food protein-induced enterocolitis syndrome (FPIES), immunodeficiency, oral allergy syndrome, pruritus, sinusitis, stinging insect allergy, wheat hypersensitivity

View Full Profile

Mark J. Sterling, MD

Mark J. Sterling, MD

Accepting New Patients

Title(s): Advanced Endoscopist
Department(s): Medicine, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-9292

ERCP and EUS, pancreatico-biliary endoscopy including EUS guided biopsy, direct cholangioscopy and laser lithotripsy, deep small bowel enteroscopy including management of obscure GI bleeding, GI luminal stenting, endoscopic mucosal resection

View Full Profile

Robert F. Yacavone, MD

Robert F. Yacavone, MD

Accepting New Patients

Title(s): Attending Physician
Department(s): Medicine, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-9292

Therapeutic endoscopy, endoscopic retrograde cholangiopancreatography (ERCP), endoscopic ultrasound (EUS), radiofrequency ablation (RFA) for barrett’s esophagus, endoscopic mucosal resection (EMR), endoluminal stenting

View Full Profile


Call Us
617-636-5883