The invention discloses a diet intervention composite for preventing and curing 
recurrent oral ulceration. The diet intervention composite is prepared from the following components in percentage by weight: 22.5-67.5 of Se-enriched 
brown rice guangdong navigation No.1, 22.5-67.5 of polished rice guangdong navigation No.1, 2.5-6.5 of Chinese yam, 3.0-7.0 of poria and 0.3-1.5 of 
pericarpium citri reticulatae. A group of effective diet intervention food combination is provided for patients suffering from the 
recurrent oral ulceration and can be used for diet intervention food development, so that the group of 
diet food has the functions of promoting the healing of dental ulcer, tonifying 
spleen, improving unbalance of the intestinal 
flora, regulating inflammatory 
cytokine levels in the body and reducing blood fat and has 
laxative properties, and can effectively solve the problems of insufficiency of the 
spleen and 
constipation of patients, prevention of 
hyperlipidemia, reduction of 
prevalence rate. The food composite can be prepared into instant rice sticks, instant congees and the like, and is convenient to use, free of 
medicine side effects, safe to use and good in 
curative effect.