What are the foods that cause gas fire? thank you

There is a saying that "fire returns to yuan" in the function of cinnamon. I don't know what book it comes from, but this statement makes many people mistakenly think that cinnamon has the function of "hiding" and can hide the fire in the upper coke in the lower coke. In fact, this is not the case. So how should we understand what the ancients said? Cinnamon can indeed lead the fire back to its original state, but it is only suitable for a special situation: the symptoms of excessive yin and cold in the lower energizer, no place for real fire, forced escape to the upper energizer, fire in the mouth and pharynx or red face. This is a critical situation in which Yang will die. The treatment is undoubtedly to support yang and suppress yin, and to warm yang at the lower jiao. Therefore, cinnamon can bring fire back to RMB.