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What are the symptoms of dairy and wheat intolerance?

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Quick Answer

Gas, stomach pain and bloating are the most common symptoms of lactose, or dairy, intolerance, states WebMD. Wheat allergy symptoms in adults are diarrhea and heartburn, while children can experience histamine reactions to wheat including swelling of the mouth or throat and difficulty breathing, according to Healthline.

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Full Answer

Wheat allergy is the most common food allergy and usually appears in infancy or when the child is a toddler, explains Healthline. It is easy to mistake wheat allergies in children for airborne allergies because symptoms such as itching of the skin and watery eyes are common. Anaphylaxis is a severe allergic reaction that can cause an individual’s throat to swell and close up, causing an inability to breathe. An accelerated heart rate and chest pain can also be present. If the wheat allergy affects the gastrointestinal tract, symptoms include cramping, diarrhea, nausea or vomiting.

Lactose intolerance occurs when the small intestine does not produce enough lactase, an enzyme that digests the lactose in dairy foods, states WebMD. When lactose moves through the colon without being properly digested, the uncomfortable abdominal and intestinal symptoms develop. Some lactose-intolerant individuals cannot digest any milk products while others can handle small amounts or certain types, such as hard cheeses, without problems. Lactose intolerance is common in adults and occurs most often in Native Americans and people of African, Asian and South American descent.

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