Can eating too much oil cause diarrhea?
Generally, "la du zi" refers to diarrhea. Consuming excessive oil may lead to diarrhea. The specific analysis is as follows:

When excessive oily foods are consumed and not fully digested, fats can create a high-osmotic environment in the intestines, causing large amounts of water to be drawn into the intestinal lumen. This increases the water content and volume of stool, potentially leading to clinical symptoms such as diarrhea. If diarrhea occurs after eating greasy food, it's important to first adjust the diet by avoiding excessive intake of fatty foods, and take medications such as Bifidobacterium live capsules or multienzyme tablets as directed by a physician for symptomatic relief. If symptoms persist, timely medical evaluation is recommended, including abdominal ultrasound and blood biochemical tests, to further rule out diseases of the liver, biliary tract, or pancreas.
It is advisable in daily life to maintain a light diet, avoid overeating or consuming overly greasy foods. Additionally, one should avoid fatigue and staying up late, which helps maintain good immunity and prevents the onset of other illnesses.