Fresh milk is a rich source of protein, calcium, and essential vitamins. However, many individuals experience abdominal pain, bloating, or diarrhea after consuming it. According to Master, Doctor, Specialist Level I Doan Hoang Long, from the Department of Gastroenterology, Digestive Endoscopy and Endoscopic Surgery Center, Tam Anh General Hospital Ho Chi Minh City, these symptoms can stem from various physiological factors and external conditions.
The most common cause is lactose intolerance, a disorder where the body struggles to digest lactose, the natural sugar found in milk and dairy products. This occurs when the small intestine does not produce enough lactase enzyme, which is necessary to break down lactose. Undigested lactose then travels to the colon, where bacteria ferment it, leading to gas production, bloating, abdominal cramps, and diarrhea.
The severity of symptoms depends on each individual's tolerance level. Doctors may recommend diagnostic tests, such as a breath test, to confirm the condition. Based on the diagnosis, dietary adjustments or the consumption of lactose-free milk may be advised.
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Doctor Long examining a patient. Photo: Tam Anh General Hospital. |
An allergy to milk protein can trigger symptoms such as skin rashes or itching, wheezing, abdominal pain, vomiting, and diarrhea. This condition is more prevalent in children than in adults.
Beyond individual predispositions, milk quality also impacts digestion. Milk can become contaminated with bacteria such as Salmonella, Escherichia coli (E. coli), or Listeria during production, transportation, or storage. Consuming contaminated milk poses a risk of food poisoning or gastrointestinal infection, characterized by diarrhea, abdominal pain, nausea, vomiting, and occasionally fever.
Improper storage also contributes to digestive issues. Leaving milk at room temperature for extended periods or storing it at incorrect temperatures creates an environment for bacterial growth and spoilage, leading to symptoms similar to digestive disorders. For safety, milk should be refrigerated below 4 degrees C and consumed within the recommended period stated on the packaging after opening.
According to Doctor Long, individuals with irritable bowel syndrome (IBS) face an elevated risk of digestive dysfunction when consuming milk. Furthermore, drinking excessive amounts of milk at once can introduce a quantity of lactose that surpasses the lactase enzyme's digestive capacity. The excess lactose then ferments in the colon, resulting in bloating, diarrhea, and abdominal pain.
To minimize the incidence of diarrhea after consuming milk, individuals should monitor their body's reactions, consume moderate amounts, and select appropriate types of milk. Those experiencing persistent symptoms or suspecting an allergy should seek medical examination and specific advice from a healthcare facility.
Thao Nhi
