Lactose Intolerance

12 min read

Lactose intolerance is a digestive disorder caused by the inability to digest lactose, a type of sugar found in dairy products. It is caused by a deficiency of the enzyme lactase, which is produced in the small intestine. People with lactose intolerance are unable to break down the lactose into simpler forms of sugar, which can cause digestive symptoms such as bloating, gas, abdominal pain, and diarrhea.

Causes of Lactose Intolerance

Lactose intolerance is caused by a deficiency of the enzyme lactase, which is produced in the small intestine. This enzyme is responsible for breaking down lactose into simpler forms of sugar, which can then be absorbed into the bloodstream. Without this enzyme, lactose is not broken down and passes through the digestive system undigested, leading to digestive symptoms.

Risk Factors for Lactose Intolerance

Lactose intolerance is more common in certain populations, including people of African, Asian, Hispanic, and Native American descent. It is also more common in people over the age of 65. Other risk factors include a family history of lactose intolerance, a history of gastrointestinal illness, and certain medical conditions such as celiac disease.

Diagnosis of Lactose Intolerance

Lactose intolerance is usually diagnosed through a combination of medical history, physical examination, and laboratory tests. The most common test used to diagnose lactose intolerance is the hydrogen breath test, which measures the amount of hydrogen in the breath after consuming a lactose-containing drink. Other tests include the lactose tolerance test and the stool acidity test.

Complications of Lactose Intolerance

Lactose intolerance can lead to a number of complications, including dehydration, malnutrition, and vitamin and mineral deficiencies. It can also lead to an increased risk of certain diseases, such as irritable bowel syndrome, Crohn's disease, and celiac disease.

Take the Lactose Intolerance Assessment

Symptoms

Common Symptoms of Lactose Intolerance

The most common symptoms of lactose intolerance include:

  • Abdominal pain
  • Bloating
  • Gas
  • Nausea
  • Diarrhea

These symptoms usually occur within 30 minutes to two hours after consuming dairy products. The severity of the symptoms can vary from person to person.

Other Symptoms of Lactose Intolerance

In addition to the common symptoms listed above, some people with lactose intolerance may experience other symptoms, such as:

  • Stomach cramps
  • Headache
  • Fatigue
  • Skin rash
  • Joint pain

These symptoms may be more severe in some people than others.

Managing Lactose Intolerance Symptoms

The best way to manage lactose intolerance symptoms is to avoid dairy products. If you do consume dairy products, it’s important to do so in moderation. You can also try taking a lactase supplement before consuming dairy products to help your body digest the lactose.

It’s also important to eat a balanced diet that includes plenty of fruits, vegetables, and whole grains. Eating a healthy diet can help reduce the symptoms of lactose intolerance.

Conclusion

Lactose intolerance is a digestive disorder caused by the inability to digest lactose, a type of sugar found in dairy products. People with lactose intolerance experience a range of symptoms after consuming dairy products, including abdominal pain, bloating, gas, nausea, and diarrhea. The best way to manage lactose intolerance symptoms is to avoid dairy products or take a lactase supplement before consuming dairy products. Eating a healthy diet can also help reduce the symptoms of lactose intolerance.

Causes

Genetics

One of the most common causes of lactose intolerance is genetics. People of certain ethnic backgrounds, such as African, Asian, and Native American, are more likely to be lactose intolerant than those of other backgrounds. This is because these populations have a higher prevalence of a gene that causes the body to produce less of the enzyme lactase, which is responsible for breaking down lactose.

Age

Another common cause of lactose intolerance is age. As people age, their bodies produce less of the enzyme lactase, which can lead to difficulty digesting lactose. This is why many elderly people are lactose intolerant, while younger people may not be.

Illness or Injury

Certain illnesses or injuries can also cause lactose intolerance. For example, people with celiac disease or Crohn’s disease may be unable to produce enough lactase to digest lactose. Additionally, some people may develop lactose intolerance after a severe bout of diarrhea or other gastrointestinal illness.

Medications

Certain medications can also cause lactose intolerance. Antibiotics, for example, can kill off the beneficial bacteria in the gut that help to break down lactose. Additionally, some chemotherapy drugs can damage the cells that produce lactase, leading to difficulty digesting lactose.

Dietary Changes

Finally, dietary changes can also cause lactose intolerance. If a person suddenly stops consuming dairy products, their body may not be able to produce enough lactase to digest lactose. Additionally, some people may develop lactose intolerance after a period of fasting or extreme dieting.

Lactose intolerance is a common condition that can be caused by a variety of factors, including genetics, age, illness or injury, medications, and dietary changes. If you think you may be lactose intolerant, it is important to speak to your doctor to determine the best course of action.

Getting a Diagnosis

Hydrogen Breath Test

The hydrogen breath test is the most common test used to diagnose lactose intolerance. During the test, the patient drinks a lactose-containing beverage and then breathes into a device that measures the amount of hydrogen in the breath. If the patient is lactose intolerant, the hydrogen levels in the breath will be higher than normal.

Lactose Tolerance Test

The lactose tolerance test is another common test used to diagnose lactose intolerance. During the test, the patient drinks a lactose-containing beverage and then has their blood sugar levels measured. If the patient is lactose intolerant, their blood sugar levels will not rise as much as they would if they were not lactose intolerant.

Stool Acidity Test

The stool acidity test is a less common test used to diagnose lactose intolerance. During the test, the patient’s stool is tested for acidity. If the patient is lactose intolerant, the acidity levels in the stool will be higher than normal.

Conclusion

Diagnosing lactose intolerance can be done through a variety of tests, including a hydrogen breath test, a lactose tolerance test, and a stool acidity test. It is important to speak to a doctor to determine which test is best for you.

Questions for Your Doctor

Diagnosis

Your doctor can help you determine if you are lactose intolerant. They may recommend a breath test, blood test, or stool sample to confirm the diagnosis. Your doctor can also discuss other possible causes of your symptoms.

Treatment

Once you have been diagnosed with lactose intolerance, your doctor can help you develop a treatment plan. This may include dietary changes, such as avoiding dairy products or taking lactase enzyme supplements. Your doctor can also recommend other treatments, such as probiotics or medications, to help manage your symptoms.

Lifestyle Changes

Your doctor can help you make lifestyle changes to help manage your symptoms. This may include avoiding certain foods, such as dairy products, or eating smaller meals more frequently. Your doctor can also recommend other lifestyle changes, such as exercising regularly or reducing stress.

Follow-up Care

Your doctor can help you monitor your symptoms and make sure your treatment plan is working. They can also provide advice on how to manage your symptoms in the future. Follow-up care is important to ensure that your symptoms are being managed properly.

Treatment

Lactose-Free Diet

The most common treatment for lactose intolerance is to follow a lactose-free diet. This means avoiding all foods and beverages that contain lactose, such as milk, cheese, yogurt, and ice cream. Instead, opt for lactose-free alternatives, such as soy milk, almond milk, and lactose-free yogurt. Additionally, many processed foods, such as breads, cereals, and crackers, are also lactose-free.

Lactase Supplements

Lactase supplements are another option for treating lactose intolerance. These supplements contain the enzyme lactase, which helps break down lactose in the digestive system. Lactase supplements can be taken before eating a meal that contains lactose, or they can be taken daily to help prevent symptoms. It is important to speak with a doctor before taking any supplements.

Probiotics

Probiotics are beneficial bacteria that can help improve digestion and reduce symptoms of lactose intolerance. Probiotics can be found in fermented foods, such as yogurt, kefir, and sauerkraut, as well as in supplement form. It is important to speak with a doctor before taking any probiotic supplements.

Other Treatments

In addition to the treatments mentioned above, there are other options for managing lactose intolerance. These include avoiding large amounts of dairy at once, eating smaller meals more frequently, and drinking plenty of water. Additionally, some people find that taking digestive enzymes can help reduce symptoms.

Lactose intolerance can be managed with the right treatments. It is important to speak with a doctor to determine the best course of action for managing the condition.

Drugs & Medications

Lactase Supplements

Lactase supplements are the most common type of drug used to treat lactose intolerance. These supplements contain the enzyme lactase, which helps break down lactose into simpler sugars that can be more easily digested. Lactase supplements are available in pill, liquid, and chewable form and can be taken before consuming dairy products to help reduce symptoms.

Probiotics

Probiotics are live bacteria that can help improve digestion and reduce symptoms of lactose intolerance. Probiotics can be found in certain foods, such as yogurt, or taken as a supplement. Studies have shown that probiotics can help reduce symptoms of lactose intolerance, such as abdominal pain and bloating.

Antidiarrheal Drugs

Antidiarrheal drugs, such as loperamide, can be used to help reduce the symptoms of lactose intolerance. These drugs work by slowing down the movement of the intestines, which can help reduce the frequency and severity of diarrhea. Antidiarrheal drugs should only be used as directed by a doctor.

Conclusion

Lactose intolerance can be a difficult condition to manage, but there are a number of drugs available to help reduce the symptoms. Lactase supplements, probiotics, and antidiarrheal drugs can all be used to help manage the symptoms of lactose intolerance. It is important to speak to a doctor before taking any of these drugs to ensure they are safe and effective for you.

Diet

Foods to Avoid

People with lactose intolerance should avoid all dairy products, including milk, cheese, yogurt, ice cream, and butter. Other foods that contain lactose include processed foods, such as breads, cereals, and baked goods, as well as some soups and salad dressings. It is important to read food labels carefully to identify hidden sources of lactose.

Foods to Include

Fortunately, there are many lactose-free foods that can be included in the diet. These include fruits, vegetables, grains, nuts, seeds, and legumes. Non-dairy milks, such as almond, coconut, and soy milk, are also lactose-free and can be used as substitutes for cow’s milk. Additionally, some cheeses, such as cheddar and Swiss, are naturally low in lactose and may be better tolerated.

Conclusion

Following a lactose-free diet can help reduce symptoms of lactose intolerance. It is important to read food labels carefully and to be aware of hidden sources of lactose. Additionally, there are many lactose-free foods that can be included in the diet, such as fruits, vegetables, grains, nuts, seeds, legumes, and non-dairy milks.

Lifestyle

1. Avoid Dairy Products

The most important lifestyle tip for those with lactose intolerance is to avoid dairy products. This includes milk, cheese, yogurt, ice cream, and other dairy-based products. If you must consume dairy, opt for lactose-free or low-lactose options. You can also try using lactase enzyme supplements to help your body digest lactose.

2. Eat a Balanced Diet

It is important to eat a balanced diet when you have lactose intolerance. This means eating a variety of foods from all the food groups. Focus on eating plenty of fruits, vegetables, whole grains, lean proteins, and healthy fats. You can also try adding lactose-free alternatives to your diet, such as almond milk, coconut milk, and soy milk.

3. Stay Hydrated

Staying hydrated is essential for those with lactose intolerance. Make sure to drink plenty of water throughout the day to keep your body hydrated. You can also try adding electrolyte-rich drinks, such as coconut water, to your diet. This will help replenish lost electrolytes and keep your body functioning properly.

4. Exercise Regularly

Exercising regularly is important for everyone, but it is especially important for those with lactose intolerance. Exercise can help reduce symptoms of lactose intolerance and improve your overall health. Aim for at least 30 minutes of physical activity each day. This can include walking, jogging, swimming, or any other form of exercise that you enjoy.

5. Get Enough Sleep

Getting enough sleep is essential for those with lactose intolerance. Aim for 7-9 hours of sleep each night to ensure your body is getting the rest it needs. This will help reduce symptoms of lactose intolerance and improve your overall health.

Conclusion

Lactose intolerance can be difficult to manage, but with the right lifestyle tips, you can live a healthier life. Avoid dairy products, eat a balanced diet, stay hydrated, exercise regularly, and get enough sleep. With these tips, you can manage your condition and live a healthier life.