What are the reasons diarrhea affects blood glucose results?
Aug 21, 2025
Source: Cainiu Health
Dr. Liu Feng
Introduction
In general, the main reasons diarrhea affects blood glucose levels include abnormal nutrient absorption, excessive fluid loss, disrupted drug metabolism, enhanced stress response, and intestinal infection. If experiencing any discomfort, it is recommended to seek timely medical treatment at a正规 hospital. In daily life, one should maintain food hygiene and avoid consuming raw, cold, or spoiled food; during episodes of diarrhea, intake of high-fiber and greasy foods should be reduced.
Generally, the main reasons diarrhea affects blood glucose results include abnormal nutrient absorption, excessive fluid loss, disturbed drug metabolism, enhanced stress response, and intestinal infections. If discomfort symptoms occur, it is recommended to seek timely treatment at a regular hospital. Detailed analysis is as follows:
1. Abnormal Nutrient Absorption
During diarrhea, intestinal peristalsis accelerates, shortening the time food remains in the intestines, which can lead to insufficient absorption of nutrients such as carbohydrates, possibly resulting in low postprandial blood glucose. Easily digestible carbohydrates such as rice porridge and noodles should be selected, with small, frequent meals to avoid significant fluctuations in blood glucose.
2. Excessive Fluid Loss
Diarrhea causes significant loss of fluids and electrolytes, which can lead to hemoconcentration and potentially result in falsely elevated blood glucose readings. Oral rehydration salts should be replenished promptly, or drink lightly salted water or warm boiled water to maintain fluid balance.
3. Disturbed Drug Metabolism
Diarrhea may affect the absorption and metabolism of hypoglycemic drugs. For example, reduced intestinal absorption of oral hypoglycemic agents can lead to poor glycemic control or inaccurate blood glucose readings. Dosage or method of administration should be adjusted under a physician's guidance, and insulin injections may be necessary to control blood glucose.
4. Enhanced Stress Response
Severe diarrhea places the body in a state of stress, increasing the secretion of glucose-raising hormones such as adrenaline, which can elevate blood glucose levels. Diarrhea should be actively treated to alleviate the stress state, while closely monitoring blood glucose. If necessary, medications such as glimepiride tablets, repaglinide tablets, or metformin hydrochloride tablets may be used under medical guidance to adjust blood glucose levels.
5. Intestinal Infection
Diarrhea caused by bacterial or viral infections can affect normal intestinal function. The inflammatory response caused by the infection may interfere with carbohydrate metabolism, leading to elevated blood glucose. Under medical guidance, medications such as norfloxacin capsules, smectite powder, and bifidobacterium triple viable capsules can be used to control infection and regulate intestinal function.
In daily life, attention should be paid to food hygiene, avoiding consumption of raw, cold, or spoiled foods; during episodes of diarrhea, intake of high-fiber and greasy foods should be reduced; fluids and electrolytes should be replenished promptly; and blood glucose changes should be closely monitored, with adjustments made to diet and medication based on the results.
