It's easy to think that histamine is the bad guy when you hear "anti-histamine" and "low-histamine diet" all the time, right? But, at healthy levels, histamine plays a critical role in the body by helping to remove allergens as a part of your immune response, helping your digestion by releasing hydrochloric acid to break down food and bacteria. It also supports your brain and mental health by serving as a chemical messenger between your brain and the rest of your body. The thing is, histamine is