Title: Can you suddenly become lactose intolerant? | Yahoo Answers
Headings: Can you suddenly become lactose intolerant?
Can you suddenly become lactose intolerant?
6 Answers

Content: Should I add dairy back and see if I get sick again? Could it just be a coincidence with a stomach bug or something? Do I need to see a Doctor about it? Or do I just avoid dairy for the rest of my life? ...Show more
6 Answers
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Anama
Lv 7
1 decade ago
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The short answer is yes. For many people, their body can stop producing as much lactase as it did when you were younger. There is Primary lactase deficiency in which Decreased amount of lactase production can begin as early as age 2. For many people this is genetic, and if your parents are lactose intolerant, you may be as well. Secondary lactase deficiency is when there is another digestive issue that is creating the problem. Untreated celiac (genetic, autoimmune disease) destroys the tips of the villi where lactase is produced, Chron's, IBS (lactase can be washed away by constant diarrhea as well) are always suspected until proven otherwise with sudden onset of symptoms like you are having.