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July 2, 2024

Understanding Histamine Intolerance and Mast Cell Activation Syndrome

with podcast guest

Dr. Becky Campbell


Dr. Becky Campbell, affectionately known as the “histamine queen,” is a renowned expert in histamine intolerance, gut health, mast cell activation syndrome (MCAS), and mold illness. Dr. Becky is a board-certified doctor of natural medicine who was initially introduced to functional medicine as a patient. She struggled with many of the issues her patients struggle with today, and she has made it her mission to help patients worldwide with her virtual practice and books. Dr. Becky hopes to help others regain their life as functional medicine helped her regain hers.

In this episode, Dr. Becky and I talk about her health journey, the complexities of MCAS, how MCAS differs from histamine intolerance, its impact on women’s health conditions such as endometriosis and PMDD, common symptoms and triggers of histamine intolerance and mold illness, practical insights into how to identify and manage these conditions, and more. Enjoy the episode!


  • Dr. Becky’s background and how she became the Histamine Queen
  • Distinguishing between histamine intolerance and mast cell activation syndrome (MCAS)
  • Common symptoms of histamine intolerance
  • The connection between histamine intolerance and gut health
  • Dr. Becky’s approach to treating histamine intolerance and MCAS
  • Recognizing that the goal of treatment is to improve histamine tolerance
  • Foods and environmental factors that can trigger or worsen histamine intolerance symptoms
  • Differentiating histamine intolerance from allergies
  • The simplest and most effective way to determine if you have histamine intolerance
  • Dr. Becky’s experience with mold illness
  • Symptoms of mold illness and challenges with identifying and addressing mold exposure
  • What you need to know about mycotoxin testing
  • What Dr. Becky has learned through the process of home testing and mold remediation


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Bonuses Include: The Fix Your Period Workbook to Use Alongside the Book
The Fix Your Period Toolkit includes a series of handouts on vaginal steaming, how to use CBD for your menstrual cycle problems, seed cycling, how to use castor oil packs to support your period and fertility, and how to live in harmony with your cycle!

Medical Disclaimer
Information in this post and on this web site is provided for informational purposes only. The information is a result of practice experience and research by the author. This information is not intended as a substitute for the advice provided by your physician or other healthcare professional or any information contained on or in any product label or packaging. Do not use the information on this web site for diagnosing or treating a health problem or disease, or prescribing medication or other treatment. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease. Always speak with your physician or another healthcare professional before taking any medication or nutritional, herbal, or homeopathic supplement, or using any treatment for a health problem. This post may contain affiliate links. Click here to read my affiliate disclosure.