Sara gets a stomachache and feels bloated after eating ice cream or drinking milk. Sara likely has a
intolerance

she most likely has a lactose intolerance

Explanation:

The inability to digest lactose, a component of milk and some other dairy products. The basis for lactose intolerance is the lack of an enzyme called lactase in the small intestine. The most common symptoms of lactose intolerance are diarrhea, bloating, and gas.

Lactose Intolerance

Explanation:

There is a sugar that is naturally found in milk called lactose.

Some people suffer from an inability to properly digest this sugar due to a deficiency of an enzyme called lactase.

Symptoms can include headaches, farting, belching, stomachaches, bloating, diarrhea, and in some cases, vomiting.