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%Begin  What Is Lactose Intolerance  Symptoms  Causes  Diagnosis  Treatment  and Prevention  Everyday Health Menu NewslettersSearch Lactose Intolerance
 What Is Lactose Intolerance  Symptoms  Causes  Diagnosis  Treatment  and Prevention By Paula DerrowMedically Reviewed by Sanjai Sinha, MD
Reviewed: December 4, 2020 Medically Reviewed When you were a kid, your mother may have reminded you to always drink your milk. But these days many adults find themselves experiencing some degree of what’s known as lactose intolerance.Lactose is a sugar found in dairy products. When you consume food or drink containing lactose, an enzyme in the small intestine called lactase helps you digest the sugar.
%Begin  What Is Lactose Intolerance Symptoms Causes Diagnosis Treatment and Prevention Everyday Health Menu NewslettersSearch Lactose Intolerance What Is Lactose Intolerance Symptoms Causes Diagnosis Treatment and Prevention By Paula DerrowMedically Reviewed by Sanjai Sinha, MD Reviewed: December 4, 2020 Medically Reviewed When you were a kid, your mother may have reminded you to always drink your milk. But these days many adults find themselves experiencing some degree of what’s known as lactose intolerance.Lactose is a sugar found in dairy products. When you consume food or drink containing lactose, an enzyme in the small intestine called lactase helps you digest the sugar.
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But when you’re lactose intolerant, you can’t digest these sugars, and this creates excess gas and other Congenital lactase deficiency is a rare inherited disorder in which the small intestine produces little to no lactase from birth. (More on that below.) (In other words, there may be ice cream in your future.) The amount of lactose required to cause symptoms also varies, which means you can experiment and see how much (or little) dairy works for you.
But when you’re lactose intolerant, you can’t digest these sugars, and this creates excess gas and other Congenital lactase deficiency is a rare inherited disorder in which the small intestine produces little to no lactase from birth. (More on that below.) (In other words, there may be ice cream in your future.) The amount of lactose required to cause symptoms also varies, which means you can experiment and see how much (or little) dairy works for you.
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Here’s everything you need to know about lactose intolerance — and what to do about it. Signs an...
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(The medical term for this state is hypolactasia.)This deficiency may lead to lactose malabsorption,...
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Here’s everything you need to know about lactose intolerance — and what to do about it. Signs and Symptoms of Lactose Intolerance One clue that you may have lactose intolerance is that about a half hour to two hours after consuming diary, you experience the following gastrointestinal issues:Abdominal cramping 
 Causes and Risk Factors of Lactose Intolerance Many people with lactose intolerance have a deficiency of the enzyme lactase because their small intestine doesn’t produce enough lactase.
Here’s everything you need to know about lactose intolerance — and what to do about it. Signs and Symptoms of Lactose Intolerance One clue that you may have lactose intolerance is that about a half hour to two hours after consuming diary, you experience the following gastrointestinal issues:Abdominal cramping Causes and Risk Factors of Lactose Intolerance Many people with lactose intolerance have a deficiency of the enzyme lactase because their small intestine doesn’t produce enough lactase.
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(The medical term for this state is hypolactasia.)This deficiency may lead to lactose malabsorption, in which undigested lactose makes its way into the large intestine and colon. There, bacteria break it down, resulting in increased gas and fluid in the colon (and unpleasant bloating, As noted above, one rare cause of the condition is known as congenital lactase deficiency.
(The medical term for this state is hypolactasia.)This deficiency may lead to lactose malabsorption, in which undigested lactose makes its way into the large intestine and colon. There, bacteria break it down, resulting in increased gas and fluid in the colon (and unpleasant bloating, As noted above, one rare cause of the condition is known as congenital lactase deficiency.
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In congenital lactase deficiency, infants are born without the ability to break down lactose. Severe...
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In congenital lactase deficiency, infants are born without the ability to break down lactose. Severe diarrhea is the main symptom. Risk factors for lactose intolerance include:Age (it tends to appear after adolescence or young adulthood)A person’s race or ethnicityPremature birthChemotherapy or radiation 
 How Is Lactose Intolerance Diagnosed  If you notice that you often have gastrointestinal symptoms after eating dairy, you may want to see your doctor, who will likely ask about what you’re experiencing, your medical history, and your eating habits, and will do a physical exam or order tests to diagnose the problem.
In congenital lactase deficiency, infants are born without the ability to break down lactose. Severe diarrhea is the main symptom. Risk factors for lactose intolerance include:Age (it tends to appear after adolescence or young adulthood)A person’s race or ethnicityPremature birthChemotherapy or radiation How Is Lactose Intolerance Diagnosed If you notice that you often have gastrointestinal symptoms after eating dairy, you may want to see your doctor, who will likely ask about what you’re experiencing, your medical history, and your eating habits, and will do a physical exam or order tests to diagnose the problem.
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You may also want to keep track of how much dairy you eat. (Don’t forget to note when you have the...
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If your glucose level doesn't rise, it means your body isn't properly digesting an...
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You may also want to keep track of how much dairy you eat. (Don’t forget to note when you have these foods, and what you eat them with.) Be sure to let your doctor know which dairy foods, and how much of them, cause discomfort. Another option is a lactose tolerance test, which measures the amount of glucose in your bloodstream after you drink a liquid that contains lactose.
You may also want to keep track of how much dairy you eat. (Don’t forget to note when you have these foods, and what you eat them with.) Be sure to let your doctor know which dairy foods, and how much of them, cause discomfort. Another option is a lactose tolerance test, which measures the amount of glucose in your bloodstream after you drink a liquid that contains lactose.
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If your glucose level doesn't rise, it means your body isn't properly digesting an...
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You may not even need to cut out dairy completely. Start by trying different dairy products and gaug...
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If your glucose level doesn't rise, it means your body isn't properly digesting and absorbing the lactose-filled drink. Editor s Picks 
 9 Healthy Plant-Based Milks That Are Making a Splash 
 What Is a Plant-Based Diet  A Complete Beginner s Guide 
 What Is Kefir  Types  Nutrition Facts  Health Benefits  Recipe
See all in Lactose Intolerance 
 Duration of Lactose Intolerance There's no cure for lactose intolerance, but most people are able to control their symptoms by making changes to their diet. Treatment and Medication Options for Lactose Intolerance There is no cure for lactose intolerance, but it is possible to manage symptoms by paying attention to — and changing — your diet.
If your glucose level doesn't rise, it means your body isn't properly digesting and absorbing the lactose-filled drink. Editor s Picks 9 Healthy Plant-Based Milks That Are Making a Splash What Is a Plant-Based Diet A Complete Beginner s Guide What Is Kefir Types Nutrition Facts Health Benefits Recipe See all in Lactose Intolerance Duration of Lactose Intolerance There's no cure for lactose intolerance, but most people are able to control their symptoms by making changes to their diet. Treatment and Medication Options for Lactose Intolerance There is no cure for lactose intolerance, but it is possible to manage symptoms by paying attention to — and changing — your diet.
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You may not even need to cut out dairy completely. Start by trying different dairy products and gaug...
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You may not even need to cut out dairy completely. Start by trying different dairy products and gauging your symptoms, sticking with small amounts to see how your body responds.
You may not even need to cut out dairy completely. Start by trying different dairy products and gauging your symptoms, sticking with small amounts to see how your body responds.
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Kevin Wang 6 minutes ago
It may also help to not eat dairy products on their own, but to try them with other foods (milk with...
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And it’s especially important for kids with lactose intolerance to see a doctor, since they need c...
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It may also help to not eat dairy products on their own, but to try them with other foods (milk with cereal, for example, or cheese with crackers). Certain dairy products, like hard cheeses and yogurt, are lower in lactose than others, so start with those.RELATED: You should also be mindful of getting enough calcium. Ask your doctor whether it makes sense for you to take calcium supplements.
It may also help to not eat dairy products on their own, but to try them with other foods (milk with cereal, for example, or cheese with crackers). Certain dairy products, like hard cheeses and yogurt, are lower in lactose than others, so start with those.RELATED: You should also be mindful of getting enough calcium. Ask your doctor whether it makes sense for you to take calcium supplements.
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And it’s especially important for kids with lactose intolerance to see a doctor, since they need calcium for growth and strong bones. Canned salmon or sardinesLeafy green veggies such as broccoli or More About Calcium 
Calcium: Health Benefits, Food Sources, and MoreFew foods, according to the National Institutes of Health, naturally contain 
 Prevention of Lactose Intolerance
There is no way to prevent lactose intolerance, but there are ways to prevent its symptoms, as this article describes. Complications of Lactose Intolerance
Lactose intolerance may affect your health if it keeps you from getting enough nutrients, such as calcium and vitamin D, which are found in dairy products.
And it’s especially important for kids with lactose intolerance to see a doctor, since they need calcium for growth and strong bones. Canned salmon or sardinesLeafy green veggies such as broccoli or More About Calcium Calcium: Health Benefits, Food Sources, and MoreFew foods, according to the National Institutes of Health, naturally contain Prevention of Lactose Intolerance There is no way to prevent lactose intolerance, but there are ways to prevent its symptoms, as this article describes. Complications of Lactose Intolerance Lactose intolerance may affect your health if it keeps you from getting enough nutrients, such as calcium and vitamin D, which are found in dairy products.
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Research and Statistics How Many People Are Lactose Intolerant BIPOC and Lactose Intolerance It ...
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Research and Statistics  How Many People Are Lactose Intolerant  
 BIPOC and Lactose Intolerance It is not as prevalent in people of northern European descent. Related Conditions and Causes of Lactose Intolerance Gastroenteritis (inflammation of the intestinal lining caused by a virus, bacteria, or parasite) 
 Resources We Love
The Academy of Nutrition and Dietetics’s 
 Editorial Sources and Fact-Checking Malik T, Panuganti K. Lactose Intolerance.
Research and Statistics How Many People Are Lactose Intolerant BIPOC and Lactose Intolerance It is not as prevalent in people of northern European descent. Related Conditions and Causes of Lactose Intolerance Gastroenteritis (inflammation of the intestinal lining caused by a virus, bacteria, or parasite) Resources We Love The Academy of Nutrition and Dietetics’s Editorial Sources and Fact-Checking Malik T, Panuganti K. Lactose Intolerance.
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Show Less NEWSLETTERS
 Sign up for our Digestive Health Newsletter  SubscribeBy subscribing you agree to the Terms of Use and Privacy Policy. The Latest in Lactose Intolerance 
Lactose Intolerance Symptoms
The signs of lactose intolerance typically occur within two hours after consuming milk-based products.By Joseph Bennington-CastroApril 23, 2021 
Can You Become Lactose Intolerant Later in Life?
Show Less NEWSLETTERS Sign up for our Digestive Health Newsletter SubscribeBy subscribing you agree to the Terms of Use and Privacy Policy. The Latest in Lactose Intolerance Lactose Intolerance Symptoms The signs of lactose intolerance typically occur within two hours after consuming milk-based products.By Joseph Bennington-CastroApril 23, 2021 Can You Become Lactose Intolerant Later in Life?
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If you’re having trouble digesting dairy lately, it might be time to try a lactose-free diet.By Be...
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If you’re having trouble digesting dairy lately, it might be time to try a lactose-free diet.By Beth W. OrensteinOctober 30, 2017 
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A lactose intolerance diet should include dairy-free foods, but it can allow some dairy as well.
If you’re having trouble digesting dairy lately, it might be time to try a lactose-free diet.By Beth W. OrensteinOctober 30, 2017 Lactose Intolerance Diet and TreatmentBy Joseph Bennington-CastroSeptember 30, 2014 8 Food Substitutes for Lactose Intolerance A lactose intolerance diet should include dairy-free foods, but it can allow some dairy as well.
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