Why does drinking milk cause diarrhea?

 


There are a few reasons why you might get diarrhea when you drink milk.

  • Lactose intolerance: Lactose intolerance is a condition in which the body does not produce enough of the enzyme lactase, which is needed to digest lactose, the sugar found in milk. When people with lactose intolerance drink milk, the undigested lactose passes into the colon, where it is fermented by bacteria. This fermentation process produces gas and other byproducts, which can cause diarrhea.
  • Milk allergy: A milk allergy is an allergic reaction to the proteins found in milk. When people with a milk allergy drink milk, their immune system overreacts and produces antibodies that attack the milk proteins. This can cause a variety of symptoms, including diarrhea.
  • Yeast infection: Yeast infections are caused by a fungus called Candida albicans. Candida albicans can grow in the intestines and cause a number of symptoms, including diarrhea. Milk can provide a source of food for Candida albicans, which can lead to an overgrowth of the fungus and worsening of the yeast infection.

If you think you might be getting diarrhea from drinking milk, there are a few things you can do:

  • Try lactose-free milk: Lactose-free milk is made by breaking down the lactose in milk so that it is easier to digest.
  • Avoid drinking milk in large quantities: Drinking too much milk at once can overwhelm the body's ability to digest lactose.
  • Try eating yogurt or kefir: Yogurt and kefir contain live cultures of bacteria that can help to improve digestion.
  • See a doctor: If you are still getting diarrhea after trying these things, you should see a doctor to rule out other possible causes.

If you have a milk allergy, you should avoid all milk products. If you have a yeast infection, you should see a doctor for treatment.


You should stop drinking milk if you get diarrhea from it. This is because diarrhea is a sign that your body is not able to digest the lactose in milk. If you continue to drink milk, you may experience worsening diarrhea and other symptoms, such as bloating, gas, and abdominal cramps.

There are a few things you can do to manage your lactose intolerance and prevent diarrhea:

  • Choose lactose-free milk products: Lactose-free milk products are made by breaking down the lactose in milk so that it is easier to digest.
  • Take lactase supplements: Lactase supplements contain the enzyme lactase, which can help to break down lactose in milk.
  • Avoid drinking milk in large quantities: Drinking too much milk at once can overwhelm the body's ability to digest lactose.
  • Try eating yogurt or kefir: Yogurt and kefir contain live cultures of bacteria that can help to improve digestion.

If you have severe lactose intolerance, you may need to completely avoid all milk products. However, most people with lactose intolerance can tolerate small amounts of lactose-free milk products.

If you are unsure whether or not you have lactose intolerance, talk to your doctor. They can help you to determine if you have lactose intolerance and develop a management plan that is right for you.


It is natural to have diarrhea from milk if you are lactose intolerant. Lactose intolerance is a very common condition, affecting an estimated 65% of the world's population. It is caused by a deficiency in the enzyme lactase, which is responsible for breaking down lactose, the sugar found in milk.

When people with lactose intolerance consume milk, the undigested lactose travels to the colon, where it is fermented by bacteria. This fermentation process produces gas and other byproducts, which can lead to diarrhea.

Other symptoms of lactose intolerance include:

  • Bloating
  • Gas
  • Abdominal cramps
  • Nausea
  • Vomiting

The severity of symptoms can vary from person to person. Some people may only experience mild symptoms, while others may experience severe diarrhea and other problems.

If you think you may be lactose intolerant, there are a few things you can do to manage your symptoms:

  • Avoid milk and other dairy products.
  • Choose lactose-free milk products.
  • Take lactase supplements before consuming milk products.
  • Eat smaller portions of dairy products.
  • Avoid consuming milk products on an empty stomach.

If you have any concerns about lactose intolerance, be sure to talk to your doctor. They can help you to develop a management plan that is right for you.

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