06/17/2026
While mast cell activation syndrome and histamine intolerance are related, they are not the same. Histamine intolerance involves trouble breaking down histamine, while MCAS describes how overactive mast cells can release histamine and cause wide-ranging symptoms.
Learn more about the differences between histamine intolerance and MCAS from Dr. Warren in this week's article: https://restorativehealthsolutions.com/blog/inflammation/histamine-intolerance-vs-mcas/