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 Histamine Intolerance: Symptoms, Diagnosis, and Beyond Mast Cell Activation Syndrome (MCAS): A Functional Approach to Histamine Intolerance What to do if you have histamine intolerance? An expert gives advice