Abdominal pain, chronic diarrhea, iron-deficiency anemia, and other malabsorption symptoms^1,2 are just some of the many symptoms that can make differentiating between gastrointestinal (GI) conditions difficult and frustrating for you and your patients. Such is the case with celiac disease (CD), inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS). Diagnosing these diseases can be particularly challenging because they often target the same organ, the bowel.¹ Laboratory investigations can be used to diagnose patients with GI symptoms easier, potentially reducing time to diagnosis and therefore the risk of long-term complication for your patient.