Lactose intolerance is usually diagnosed based on symptoms, but a healthcare provider can also perform breath and blood testing. Breath tests are also available as over-the-counter home test kits.

In a recent study published in The Journal of Applied Laboratory Medicine, researchers evaluated the performance of a compact diagnostic assay that can accurately and rapidly diagnose lactose ...

Q: I might be lactose intolerant. Can you tell me about this condition and what I can do about it? A: Lactose intolerance is a very common condition in which someone has difficulty digesting lactose, ...

Medically reviewed by Robert Burakoff, MD Key Takeaways IBS and lactose intolerance both cause symptoms of diarrhea, ...

DEAR DR. GOTT: My husband claims to be lactose-intolerant, yet he happily (and without incident) consumes creamed soups, iced cream, cheese and other dairy products. He also says he is allergic to ...

It can be hard to determine if you have an actual allergy or an intolerance to something you eat. Here's how to know. Taylor Leamey Former Senior Writer Taylor Leamey wrote about all things wellness ...

Lactose intolerance is the most common food sensitivity worldwide. Lactose intolerance and dairy allergy are not the same, but the differences can be misunderstood. How do you know if you are ...

Hydrogen and methane breath tests (HMBT) are a noninvasive diagnostic tool commonly employed to evaluate small intestinal bacterial overgrowth (SIBO) and issues with carbohydrate malabsorption, such ...

Some people notice it slowly. A glass of milk that once felt harmless now brings discomfort. Others remember it clearly, a sudden shift where dairy stopped agreeing with them. Lactose intolerance ...