Mast Cell Activation Syndrome (MCAS): A Functional Approach to Histamine Intolerance For many people, symptoms of histamine intolerance are influenced by diet. Foods that are commonly higher in histamine include: Fermented foods (e.g. sauerkraut, miso, kombucha) Aged cheeses (such as SIBO & Histamine Intolerance: What's the Connection? Atrantil Most people are familiar with certain histamine conditions, such as the development of a welt from a bee sting or hives from a peanut allergy. However, symptoms ranging from brain fog to Glutathione and histamine connection explained Histamine Intolerance Nutritionist One on One Support