Many urban legends are framed as complete stories with plot and characters. The compelling appeal of a typical urban legend is its elements of mystery, horror, fear or humor.Often they serve as cautionary tales.ecause people frequently allege that such tales happened to a  friend of a friend  (FOAF), the phrase has become a commonly used term when recounting this type of story. Sometimes urban legends are repeated in news stories, or distributed by e-mail or social media.
We have mast cells in the stomach wall. Somastatain-which is produced from d cells in the stomach wall is a known mast cell activator. We also know stress-in particular substance p and CRH also cause mast cells to spill contents. Histamine which we know is a chemical constantly released.
Certain foods (even food that is low in histamine) can stimulate the release of histamine from mast cells in your body (a type of immune cell). These foods include: 1  Bananas. 2  Tomatoes. 3  Strawberries.4  Nuts.5  Peanuts. 6  Shellfish.his is also one of the chemicals that is released in the body as part of an allergic reaction, causing the typical itching, sneezing, wheezing and swelling allergy symptoms. We all have an enzyme (diamine oxidase) which breaks down any histamine that we absorb from a histamine-containing food.