List of Symptoms

Here is a list of what is thought to be the most common symptoms, but you can also find them under separate category links since the whole list can be overwhelming.

Gastrointestinal Symptoms

  • Abdominal Pain
  • Acid Reflux (heartburn)
  • Bloating
  • Constipation
  • Cramping
  • Diarrhea
  • Flatulence
  • Lactose Intolerance
  • Nausea
  • Upset Stomach
  • Vomiting

Extra-intestinal Symptoms

  • Abnormal Menstrual Cycles
  • Acne
  • Ataxia (balance problems)
  • Bruise Easily
  • Canker Sores
  • Dental Enamel Issues
  • Eczema/Psoriasis
  • Fatigue
  • Headaches (migraines)
  • Hypoglycemia
  • Inability to Concentrate (fuzzy brain)
  • Infertility
  • Joint Pain
  • Muscle Cramping
  • Nerve Damage
  • Night Blindness
  • Nosebleeds
  • Peripheral Neuropathy (numbness/tingling in extremities)
  • Respiratory Issues
  • Rosacea
  • Seizures (epilepsy)
  • Swelling/Inflammation
  • Weight Loss or Gain

Associated Conditions

  • ADD/ADHD
  • Addison’s Disease (adrenal gland atrophy)
  • Alopecia Areata
  • Anemia (due to malabsorption)
  • Autism (While no specific evidence links autism and Celiac disease, anecdotal evidence shows improvement of symptoms in some individuals once gluten and/or lactose is removed from the diet.)
  • Cardiomyopathy
  • Cancer (adenocarcinoma of the small intestine, esophageal, melanoma, non-hodgkin’s lymphoma, thyroid)
  • Crohn’s Disease
  • Cystic Fibrosis
  • Depression
  • Diabetes (type 1)
  • Down Syndrome
  • Epilepsy
  • Fibromyalgia
  • Grave’s Disease (hyperthyroidism)
  • Hashimoto’s Disease (hypothyroidism)
  • Lupus
  • Osteoporosis
  • Rheumatoid Arthritis
  • Sj√∂gren’s Syndrome (glands that produce mucus become inflamed and/or destroyed)

Additional Symptoms in Children

  • Behavioral Changes
  • Delayed Puberty
  • Failure to Thrive
  • Irritability
  • Learning Difficulties