MCAS & Histamine Intolerance November 11, 2025 By $4.99 MCAS & Histamine Intolerance quantity Add to cart Categories: Food/Supplements, Other Handouts Description Description What is Mast Cell Activation Syndrome (MCAS)? How is it diagnosed and what is the treatment? These questions and more will be answered in this 3-page handout about histamine intolerance including what medications and diets can help! Related products Gastroparesis Diet $5.99 Add to cart Dysautonomia & POTS $0.99 Add to cart Probiotics $4.99 Add to cart FODMAP Elimination Diet (Free!) $0.00 Add to cart