Answer:
See Explanation Below.
Step-by-step explanation:
Lactose, the sugar found in Milk, has to be absorbed by the body or there will be issues. Those who are lactose intolerant are unable to absorb the lactose. The small intestine has to make a substance called lactase. The job of lactase is to break down lactose. People who do not create enough lactase cannot absorb lactose. Problems caused by this include pain, bloating, nausea, and more.
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