Causes of gastrointestinal discomfort after drinking milk
Oct 14, 2022
Source: Cainiu Health
Dr. Zhao Haiming
Introduction
If milk is placed in the refrigerator, the chilled milk can irritate the gastric mucosa upon entering the gastrointestinal tract, leading to symptoms of gastrointestinal discomfort. When the body lacks lactase or has low lactase activity, lactose in milk cannot be properly digested and may irritate the gastrointestinal tract, also causing gastrointestinal discomfort. In cases of gastric ulcer or gastritis, damage to the gastric mucosa and impaired digestive function can likewise result in the aforementioned symptoms.
Causes of gastrointestinal discomfort after drinking milk may include improper eating habits, lactose intolerance, or organic gastrointestinal diseases.
1. Improper eating habits
If milk is stored in the refrigerator and becomes too cold, consuming it chilled can irritate the gastric mucosa upon entering the digestive tract, leading to gastrointestinal symptoms such as abdominal pain and diarrhea.
2. Lactose intolerance
Individuals who do not regularly consume milk may have insufficient levels or low activity of lactase—the enzyme responsible for digesting lactose in dairy products. When lactase is deficient, lactose from milk cannot be properly digested. As undigested lactose irritates the gastrointestinal tract, symptoms such as nausea and vomiting may occur.
3. Organic gastrointestinal diseases
In patients with conditions such as gastric ulcers or gastritis, varying degrees of damage to the gastric mucosa can impair digestive function. Milk is a high-protein food that is relatively difficult to digest. Excessive consumption may increase the burden on the gastrointestinal tract, thereby triggering or worsening gastrointestinal discomfort.
If a person consistently experiences gastrointestinal discomfort after drinking milk, it is recommended to seek timely medical evaluation at a hospital. Relevant examinations should be performed to identify the underlying cause, followed by appropriate symptomatic treatment.
