Learn About Histamine Intolerance

Educational articles about histamine intolerance.

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What Is Histamine Intolerance?

Histamine intolerance is a condition where the body struggles to break down histamine, leading to symptoms that often overlap with MCAS, food sensitivities, gluten, and dairy intolerance.

Common Symptoms of Histamine Intolerance

A clear overview of the most common symptoms of histamine intolerance, including digestive, skin, neurological, and sleep-related effects.

Histamine Intolerance and Anxiety: The Gut-Brain Connection

An explanation of how histamine intolerance causes anxiety, why high histamine triggers fight-or-flight, and what you can do about it.

Histamine Intolerance and IBS: Are They Connected?

An explanation of how histamine intolerance and IBS overlap, why many people have both, and how addressing histamine can improve digestive symptoms.

Why Women Get Worse Histamine Symptoms (The Hormone Connection)

An explanation of why histamine intolerance symptoms fluctuate with your menstrual cycle, the connection between estrogen and histamine, and how to track patterns.

Histamine Intolerance and Sleep

An explanation of how histamine affects sleep, why histamine intolerance can cause insomnia and night waking, and how histamine load influences rest and recovery.

Histamine Intolerance vs MCAS: What's the Difference?

An explanation of the key differences between histamine intolerance and mast cell activation syndrome (MCAS), including symptoms, mechanisms, and why they often overlap.

Why Mosquito Bites Are Worse With Histamine Intolerance

Why people with histamine intolerance often have worse reactions to mosquito bites, and what you can do about it.