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Lactose intolerance is distinct from milk allergy, an immune response to cow's milk proteins. They may be distinguished in diagnosis by giving lactose-free milk, producing no symptoms in the case of lactose intolerance, but the same reaction as to normal milk in the presence of a milk allergy. A person can have both conditions.
Symptoms may begin at any age, and may develop quickly or slowly. Triggers may range from a viral infection or illness to environmental chemical exposure. Chemical intolerance occurs more commonly in women, which may be because of hormone differences, as many food chemicals mimic hormones. [citation needed]
The symptoms of milk allergy can be confused with other disorders that present similar clinical features, such as lactose intolerance, infectious gastroenteritis, celiac disease, non-celiac gluten sensitivity, inflammatory bowel disease, eosinophilic gastroenteritis and pancreatic insufficiency, among others.
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This article provides a list of autoimmune diseases. These conditions, where the body's immune system mistakenly attacks its own cells, affect a range of organs and systems within the body. Each disorder is listed with the primary organ or body part that it affects and the associated autoantibodies that are typically found in people diagnosed ...
Lactose solution is then given to the subjects to drink, and blood glucose levels are checked at 20 minute intervals for an hour. The subjects who show a substantial rise in their blood glucose level are considered lactose tolerant. [22] A hydrogen breath test is often used to detect lactose intolerance. [citation needed]
Skin rash, hives, vomiting, diarrhea, constipation, stomach pain, flatulence, colitis, nasal congestion, dermatitis, blisters, migraine, anaphylaxis Not to be confused with lactose intolerance. [27] Allergy to cow's milk is the most common food allergy in infants and young children [11] but most outgrow the allergy in early childhood.
Symptoms normally present themselves after 1–3 days, and are usually no longer present after a week. The frequency of urges to defecate, the large volume of liquid feces ejected, and the presence of blood, mucus, or pus depends on the pathogen causing the disease. Temporary lactose intolerance can occur, as well.