Lactose intolerance is a condition in which a person is unable to digest the lactose, or sugar, that is present in milk. It occurs when the body does not have enough of the intestinal enzyme lactase.

The American College of Allergy, Asthma & Immunology (ACAAI) reports that there is no such thing as a gluten allergy. Gluten intolerance is not an allergy. And, people may often confuse the term ...

Some people notice it slowly. A glass of milk that once felt harmless now brings discomfort. Others remember it clearly, a ...

A low-histamine diet can improve allergy-like symptoms in people with histamine intolerance. The diet limits fermented foods, fatty fish, and citrus fruits.

No matter how good they taste, an ice cream sundae or a big slice of watermelon might send some people with Irritable Bowel Syndrome (IBS) running to the bathroom or clutching their stomach in pain.

You're madly in love with cheese, but your body? Not so much. In fact, every time you chow down on your fave fromage, the subsequent bloating and cramps make you wonder if your ass is about to explode ...

Gluten intolerance, or non-celiac gluten sensitivity, shares some of the same symptoms as celiac disease. It can cause considerable discomfort, diarrhea, bloating, abdominal pain, and more. People ...

Cow’s milk can do a number on the tummy — in adults and children. While that doesn’t always stop us from eating a bowl of ice cream, we may pay for it later with that familiar stomach gurgling.

Alcohol intolerance is the medical term for an immediate and unpleasant reaction to consuming alcohol. Common symptoms include skin flushing, nasal congestion, and headaches. Alcohol intolerance is an ...

Allergic colitis can cause inconsolable crying and bloody stool in infants. While this can feel intense and be scary for parents, MSPI is treatable through dietary changes and is temporary in most ...

Exercise intolerance is the reduced ability of the body to perform strenuous activities. It happens when your body's responses to exercise don't achieve age and gender-appropriate levels. It's often ...