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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.
The subject of "food intolerance", including gluten sensitivity and elimination diets, was discussed in 1976. [51] Patients with symptoms including abdominal pain and diarrhea, which improved on gluten withdrawal, and who did not have celiac disease were initially described in 1976 and 1978 with the first series in 1980.
The unabsorbed lactose reaches the large intestine, where resident bacteria use it for fuel, releasing hydrogen, carbon dioxide and methane gases. These gases are the cause of abdominal pain and other symptoms. [38] [41] Lactose intolerance does not cause damage to the gastrointestinal tract. [42]
Lactose intolerance may be present due to the decreased bowel surface and reduced production of lactase but typically resolves once the condition is treated. [ citation needed ] Alternative causes of this tissue damage have been proposed and involve the release of interleukin 15 and activation of the innate immune system by a shorter gluten ...
A feeling of pressure and squeezing in the chest is a serious indication that medical care is essential because chest pain and discomfort is one of the most common symptoms of heart attack in men.
Pelvic Floor Dysfunction in Men: Causes, Symptoms, and Treatment This article was reviewed by Martin Miner, MD. Although we don’t pay much attention to our pelvic floor muscles, they make ...
His cholesterol levels exceeded 1,000 mg per deciliter, far higher than his baseline level, between 210 and 300 mg. Normal cholesterol ranges for adults are below 200 mg, five times lower than ...
Ruling out parasitic infections, lactose intolerance, small intestinal bacterial overgrowth, and celiac disease is recommended before a diagnosis of IBS is made. [68] An upper endoscopy with small bowel biopsies is necessary to identify the presence of celiac disease. [76]