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Diagnosis of food intolerance can include hydrogen breath testing for lactose intolerance and fructose malabsorption, professionally supervised elimination diets, and ELISA testing for IgG-mediated immune responses to specific foods.
Lactose intolerance is caused by a lessened ability or a complete inability to digest lactose, a sugar found in dairy products. [1] Humans vary in the amount of lactose they can tolerate before symptoms develop. [1] Symptoms may include abdominal pain, bloating, diarrhea, flatulence, and nausea. [1] These symptoms typically start thirty minutes ...
There are no specific tests that can definitively diagnose histamine intolerance—the primary approach is through a thorough evaluation of clinical symptoms and their improvement or resolution after following a low-histamine diet; an assessment should also be made to rule out other potential causes of similar symptoms, such as allergies ...
A food intolerance and food poisoning are separate conditions, not due to an immune response. [1] [4] Common foods involved include cow's milk, peanuts, eggs, shellfish, fish, tree nuts, soy, wheat, and sesame. [1] [5] [2] [6] The common allergies vary depending on the country. [1]
Specialty. Endocrinology. Fructose malabsorption, formerly named dietary fructose intolerance ( DFI ), is a digestive disorder [1] in which absorption of fructose is impaired by deficient fructose carriers in the small intestine's enterocytes. This results in an increased concentration of fructose.
There are specific tests used to help determine if a person has sucrose intolerance. The most accurate test is the enzyme activity determination, which is done by biopsying the small intestine. This test is a diagnostic for GSID.
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