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Food intolerance is a detrimental reaction, often delayed, to a food, beverage, food additive, or compound found in foods that produces symptoms in one or more body organs and systems, but generally refers to reactions other than food allergy. Food hypersensitivity is used to refer broadly to both food intolerances and food allergies.
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 ...
Sucrose intolerance can also be caused by irritable bowel syndrome, aging, or small intestine disease (secondary sucrose intolerance). 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.
Coeliac disease ( British English) or celiac disease ( American English) is a long-term autoimmune disorder, primarily affecting the small intestine, where individuals develop intolerance to gluten, present in foods such as wheat, rye and barley. [10] Classic symptoms include gastrointestinal problems such as chronic diarrhoea, abdominal ...
All were “healthy,” here meaning free of certain medical conditions including stroke, heart disease, high blood pressure, Type 2 diabetes, and mental illness.
Skin testing on the arm is a common way for detecting an allergy, but it is not as effective as other tests. Patch test. Diagnosis is usually based on a medical history, elimination diet, skin prick test, blood tests for food-specific IgE antibodies, or oral food challenge. For skin-prick tests, a tiny board with protruding needles is used. The ...
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. Intolerance to fructose was first identified and reported in 1956.
Psychiatry, clinical psychology. Avoidant/restrictive food intake disorder ( ARFID) is a feeding or eating disorder in which people avoid eating certain foods, or restrict their diets to the point it ultimately results in nutritional deficiencies. This can be due to the sensory characteristics of food, such as its appearance, smell, texture, or ...
Medical condition Myalgic encephalomyelitis/chronic fatigue syndrome Other names Post-viral fatigue syndrome (PVFS), systemic exertion intolerance disease (SEID) : 20 The four primary symptoms of ME/CFS according to the National Institute for Health and Care Excellence Specialty Rheumatology, rehabilitation medicine, endocrinology, infectious disease, neurology, immunology, general practice ...
D-xylose absorption test is a medical test performed to diagnose conditions that present with malabsorption of the proximal small intestine due to defects in the integrity of the gastrointestinal mucosa. D-xylose is a monosaccharide, or simple sugar, that does not require enzymes for digestion prior to absorption. Its absorption requires an ...