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The severity of these signs and symptoms typically increases with the amount of lactose consumed; most lactose-intolerant people can tolerate a certain level of lactose in their diets without ill effects. [16] [17] Because lactose intolerance is not an allergy, it does not produce allergy symptoms (such as itching, hives, or anaphylaxis).
Lactase persistence or lactose tolerance is the continued activity of the lactase enzyme in adulthood, allowing the digestion of lactose in milk. In most mammals , the activity of the enzyme is dramatically reduced after weaning . [ 1 ]
This is an autosomal recessive disorder and infants that can’t break down lactose have trouble with breastmilk, and develop diarrhea starting from birth. Sometimes, even those with lactase-persistence can develop temporary lactose intolerance as a result of infection or inflammation in the small intestine.
Lactose is a disaccharide sugar composed of galactose and glucose that is found in milk. Lactose can not be absorbed by the intestine and needs to be split in the small intestine into galactose and glucose by the enzyme called lactase; unabsorbed lactose can cause abdominal pain, bloating, diarrhea, gas, and nausea.
Lactose intolerance occurs when an individual is deficient in the enzyme lactase, which breaks down the lactose in the intestine. Bloating, cramps, constipation, or diarrhea may result when an individual who is lactose intolerant consumes a dairy product. Due to genetic differences, [22] [23] intolerance of lactose is more common globally than ...
The diagnostic test, when used, is similar to that used to diagnose lactose intolerance. It is called a hydrogen breath test and is the method currently used for a clinical diagnosis. Nevertheless, some authors argue this test is not an appropriate diagnostic tool, because a negative result does not exclude a positive response to fructose ...
"You can't see bacteria and taking chances isn't worth risking you or your family's health," he said. "It's better to err on the side of caution." The one exception to this rule, he said, comes to ...
[3] [4] [8] [7] [9] [11] A couple of diets suggest specific lactose-free products for the lactose intolerant, such as soy milk or whipped cream. [ 5 ] [ 6 ] One diet prohibits whole milk, half and half , cream, sour cream, and regular ice cream.
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