Irritable bowel is most afraid of three kinds of food is not true, irritable bowel syndrome patients gastrointestinal vulnerability, afraid of the food is far more than three kinds. Irritable bowel syndrome patients central nervous system perception of intestinal stimulus regulation is abnormal, the gastrointestinal tract filling and expansion, smooth muscle contraction and other physiological phenomena of increased sensitivity, a slight stimulus may lead to patients with abdominal distension and abdominal pain. Irritable bowel patients are sensitive to many foods in life, such as spicy stimulating greasy food; strong tea, coffee and other foods with high caffeine content; sashimi, sashimi and other foods; ice cream, ice-cream and other foods, as well as alcohol, etc., all of which can cause patients with irritable bowel syndrome to induce a recurrence or aggravation of symptoms. Irritable bowel patients gastrointestinal micro-ecology is also more fragile, often appear the phenomenon of flora imbalance, so the food cleaner requirements are higher, a small amount of foreign pathogenic bacteria infection may lead to patients with clinical symptoms, so patients with irritable bowel patients are afraid of food far more than three kinds of food, dietary best to pay attention to all the time.