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  2. www.nhs.uk › conditions › lactose-intoleranceLactose intolerance - NHS

    In some people, lactose intolerance is caused by another health condition, such as coeliac disease. Treating the underlying cause should help. Causes of lactose intolerance. The most common cause of lactose intolerance is when the body does not make enough of an enzyme called lactase, which helps you digest lactose. Lactose intolerance can ...

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    • About Lactose Intolerance
    • When to Seek Medical Advice
    • What Causes Lactose Intolerance?
    • Who’s Affected?
    • Is It An Allergy?
    • Treating Lactose Intolerance
    • Complications of Lactose Intolerance

    Lactose intolerance is a common digestive problem where the body is unable to digest lactose, a type of sugar mainly found in milk and dairy products. Symptoms of lactose intolerance usually develop within a few hours of consuming food or drink that contains lactose. They may include: 1. flatulence(wind) 2. diarrhoea 3. bloated stomach 4. stomach c...

    The symptoms of lactose intolerance can be similar to several other conditions, so it’s important to see your GP for a diagnosis before removing milk and dairy products from your diet. For example, the symptoms above can also be caused by: 1. irritable bowel syndrome (IBS)– a long-term disorder that affects the digestive system 2. milk protein into...

    The body digests lactose using a substance called lactase. This breaks down lactose into two sugars called glucose and galactose, which can be easily absorbed into the bloodstream. People with lactose intolerance don’t produce enough lactase, so lactose stays in the digestive system where it’s fermented by bacteria. This leads to the production of ...

    In the UK, lactose intolerance is more common in people of Asian or African-Caribbean descent. Lactose intolerance can develop at any age. Many cases first develop in people aged 20 to 40, although babies and young children can also be affected.

    Lactose intolerance isn’t the same as a milk or dairy allergy. Food allergiesare caused by your immune system reacting to a certain type of food. This causes symptoms such as a rash, wheezing and itching. If you’re allergic to something, even a tiny particle can be enough to trigger a reaction, while most people with lactose intolerance can still c...

    There’s no cure for lactose intolerance, but limiting your intake of food and drink containing lactose usually helps to control the symptoms. Depending on what dairy products you’re able to eat, you may also require additional calcium and vitamin D supplements to keep your bones strong and healthy. In some cases, your GP may refer you to a dietitia...

    Milk and other dairy products contain calcium, protein and vitamins such as A, B12 and D. Lactose also helps your body absorb a number of other minerals, such as magnesium and zinc. These vitamins and mineralsare important for the development of strong, healthy bones. If you’re lactose intolerant, getting the right amount of important vitamins and ...

  3. Mar 5, 2022 · People with lactose intolerance are unable to fully digest the sugar (lactose) in milk. As a result, they have diarrhea, gas and bloating after eating or drinking dairy products. The condition, which is also called lactose malabsorption, is usually harmless, but its symptoms can be uncomfortable. Too little of an enzyme produced in your small ...

  4. Aug 22, 2023 · Lactose is a sugar found in milk and other dairy foods. People with lactose intolerance may get diarrhoea, stomach pains and bloating if they drink milk or eat dairy foods. Some people are born with a tendency to develop lactose intolerance; others get it as a result of gastroenteritis or chemotherapy. The treatment is mainly to avoid lactose.

  5. Jan 24, 2023 · However, people with lactose intolerance can often tolerate up to 1 cup (240 ml) of milk, especially when it’s spread throughout the day. This is equivalent to 0.4–0.5 ounces (12–15 grams ...

  6. Nov 25, 2021 · Bottom line. Lactose intolerance is caused by a deficiency in lactase — the enzyme that breaks down the sugar in milk, called lactose. Common symptoms include bloating, abdominal cramps, nausea ...

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