The gastrointestinal tract is a lymphoid organ, and the lymphoid tissue within it is referred to as the gut-associated lymphoid tissue or GALT. Gastrointestinal allergy is an immediate hypersensitivity reaction of the digestive system after the ingestion of certain foods or drugs. GI allergy varies from food allergy, which can affect other organ systems. Distinctive symptoms constitute itching and swelling of the mouth and oral passages, nausea, vomiting, diarrhea, severe abdominal pain, and in severe cases, anaphylactic shock. Gastrointestinal food allergy also urges a challenge to the clinician because of its mutable symptomatology and lack of accurate diagnostic tests.
The global gastrointestinal therapeutics market size is expected to reach USD 65.1 billion by 2025, according to a new report by Grand View Research, Inc., registering a 6.6% CAGR during the forecast period. Growing geriatric population prone to gastrointestinal indications is one of the key factors anticipated to contribute to market growth. According to a report by WHO, colon cancer caused nearly 694,000 deaths in 2014.