Lactose intolerance causes undigested lactose to build up in the large intestine, resulting in the growth of gas-producing gut bacteria. Symptoms include:
- Abdominal pain or cramps
- Gurgling and rumbling sounds from the abdomen
DNA Lactose Intolerance Test
Determine if you are at risk of lactose intolerance..
Web apps are available to users who have taken the test.
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