

What You’ll Learn: In this blog, you’ll gain valuable insights into managing dietary histamine intolerance and adopting a low histamine diet. You’ll learn what histamine intolerance is and its symptoms, as well as practical tips on which foods to include and avoid. Additionally, we will explore the role of dietary supplements, including DAO enzyme (diamine oxidase), which help break down histamine in the body. By the end of this blog, you’ll have the knowledge and tools to effectively make the decisions right for you and your health journey.
If you’ve ever felt frustrated by the headaches, sneezing, digestive discomfort, random skin blemishes that all seem to come out of nowhere, you’re not alone. For some, these issues aren’t random at all. They’re tied to histamine intolerance, a condition that’s often misunderstood, underdiagnosed, and overlooked.‡
In today’s blog, we’re going to dive deeper into the concept of histamine intolerance. The purpose of our discussion isn’t to diagnose, treat or cure a disease, but to navigate ways to help manage histamine intolerance from a dietary perspective. For questions regarding a health condition or concern, we always encourage speaking with your healthcare provider as they know your health history best.
Histamine intolerance isn’t about eliminating foods forever or following rigid rules. It’s about understanding how your body processes histamine and learning how to support that process. This guide will walk you through what histamine intolerance is, how to recognize it, which foods to include and avoid, and how nutrients and supplements like a DAO enzyme supplement, and other nutrients may support your body’s ability to break down histamine. By the end, you’ll have the clarity and confidence to make informed decisions that support your health journey.
What Is Histamine Intolerance?
Histamine is a naturally occurring compound involved in immune response, digestion, and neurotransmission. Your body produces histamine, and you also consume it through food and even the environment. Normally, histamine is broken down efficiently by enzymes—primarily diamine oxidase (DAO) in the gut.
Histamine intolerance occurs when histamine builds up faster than your body can break it down. This often happens when DAO activity is reduced or overwhelmed, leading to excess circulating histamine and a wide range of complications.1
Unlike a true food allergy, histamine intolerance is dose-dependent. You may tolerate certain foods sometimes, but not others, depending on stress levels, gut health, hormone fluctuations, medications, or overall histamine load. That variance can make navigating histamine intolerance challenging.‡