Food intolerances in mast cell activation syndrome can feel absolutely infuriating. One day a food is totally fine. The next day, it’s not. And that inconsistency can make you feel like you’re doing everything wrong. Here’s the important reframe: In MCAS, food reactions aren’t just about the food. I often explain mast cells as having a “stress ledger.” When that ledger gets overloaded, mast cells become more reactive — not just to food, but to everything. Things that add to that ledger: • Weathe