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.

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 ...

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 ...

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 ...

Though lactose intolerance typically causes symptoms like stomach pain, bloating, and diarrhea, it may also occasionally cause constipation. Having lactose intolerance can mean living with many ...

After childhood, about two-thirds of the world’s human population loses the ability to digest milk. As far as we know, 100% of nonhuman mammals also lose this ability after weaning. The ongoing ...

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 ...

They're rare, but alcohol allergies can range from mild to life-threatening, says Samuels.

Many symptoms are associated with lactose intolerance. It is important to recognise them to avoid health issues. Watch out for these signs and consume dairy alternatives. Many people have lactose ...

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 ...

Heat intolerance happens when your body has trouble regulating its body temperature. Excessive sweating and fatigue are common symptoms of heat intolerance. Drinking plenty of fluids and staying ...