Book Review: ‘Mast Cells United’ by Amber Walker

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It appears my hot streak of finding amazing books and products continues with this book review on Mast Cells United: A Holistic Approach to Mast Cell Activation Syndrome by Amber Walker. Ms. Walker was kind enough to give me a copy to review. I’m happy to report, it didn’t disappoint in the least. This book is as essential to mast cell activation syndrome patients as Jeannie Di Bon’s Hypermobility Without Tears is to people with EDS and HSD.

The first thing I thought when receiving Mast Cells United was “Wow! This is the size of a textbook!” A large book with over 500 pages, Mast Cells United is truly comprehensive, taking your through the MCAS universe from development of the disease, to it’s treatment and management. Best of all, it does so in terms that are easy to understand for both the layperson and the professional. Nor is it by any means a boring book, so don’t let its textbook like presence intimidate you from picking it up. Maybe it’s just me, but even if it weren’t for Walker’s artful presentation of the information, I find learning about my own conditions invigorating and fascinating. I always feel a renewed sense of hope holding such a wealth of information in my hands, because I know it will contribute to my ongoing journey toward a better life with fewer symptoms and hopefully more freedom.

Mast Cell United doesn’t replace the care of a knowledgeable expert, but it can help ensure that you, the person who should be the true expert of your own condition, can make the best, most informed decisions about your care.

Degranulating Mast Cells

Walker begins by talking about her own MCAS journey and explaining exactly what MCAS is and what it isn’t, breaking it all down in easy to understand terms for laypeople and practitioners alike. Before moving on to viable treatment strategies, Walker explains how MCAS can affect each system of the body, common triggers and clinical considerations for diagnosis.

Mast Cells United contains several chapters on treatments. They include conventional and natural treatments, dietary considerations and discusses a wide variety of holistic healing methods that can be utilized to help improve life with MCAS. She also discusses how environmental factors which are rarely discussed, such electromagnetic fields and Radio waves, among many other things can also impact the health of the person with MCAS, spurring the mast cells to degranulate.

Mast Cells United is quickly becoming my MCAS bible. It’s not about whether holistic healing is superior to conventional healing or by any means just a book on theories. It’s about utilizing the full package–whatever works toward leading as whole a life possible with this difficult to diagnose and manage condition and its rife with possibilities. It’s about making life choices that facilitate healing, offers protection and helps us to avoid triggers. It helps you to make good decisions and prepare for the worst while hoping for the best.

The Zebra Pit book review of the exciting new book by Amber Walker called 'Mast Cells United' is everything the MCAS sufferer needs to get an in-depth understanding of this complex condition, its diagnosis and treatment. Learn about a broad range of treatments that could help you manage the condition as well as some interesting facts on comorbid conditions, symptoms and more.

I also love having the convenience of a book in my library where I can look up a term in the glossary and learn about it. Where I can go for well organized and trustworthy information. Where I don’t have to worry about screen glare causing a migraine or tiring my eyes too much. With Mast Cells United in my home, it’s easy to seek my answers about this condition quickly.

It’s no secret that I believe mast cell disorder to be at the core of most of the conditions I’ve been diagnosed with and I feel strongly that MCAS is a condition that needs to be worked up for diagnosis for anyone with EDS, Fibromyalgia, ME/CFS, IBS, Interstitial Cystitis and others and Mast Cell United spends time exploring these comorbid condition and what we know about the prevalence of mast cell activation syndrome for each. It convinces me more tha ever that waiting until we are in a histamine overload/anaphylaxis crisis to wake up to these connections is way too late to get help. We need to begin testing these patients automatically based on the understanding that many of the symptoms of these conditions overlap with MCAS. In the meantime, f you suspect you have MCAS, no matter how mild, I urge you to get help now! My second recommendation is that you buy this book now rather than waiting for diagnosis. There are many things that can be done in the meantime to improve your quality of life.

When thinking about purchasing Mast Cells United, don’t forget the doctors in your life. Being one of the most underdiagnosed and/or misdiagnosed conditions around today, we need to gift this book to every physician in our lives, most especially our GP’s, Mast Cell Specialists, Allergists, immunologists and rheumatologists.

Where to Purchase Mast Cells United

This comprehensive book about conventional and natural approaches to treating Mast Cell Acivtation Sydrome is a must have for every person who has MCAS. Learn more in my review of this pinnacle work! MCAS is commonly found in people with EDS, ME/CFS, Fibromyalgia, IBS, Interstitial Cystitis, Gastroparesis and many others.
Mast Cells United: A Holistic Approach to Mast Cell 
Activation Disorder
 Paperback: 542 pages
 Publisher: Amber Walker (March 16, 2019)
 Language: English
 ISBN-10: 1733711708
 ISBN-13: 978-1733711708 

Mast Cells United is surprisingly affordable despite all the wonderful things it’s packed with. It won’t break the bank to get a copy or two, especially if you go for a Kindle ebook! Purchase it at Amazon through this link: Mast Cells United on Amazon. By choosing to purchase through this link today, you’re helping the Zebra Pit to keep publishing this sort of valuable information for medical zebras and spoonies. Thank you for your contribution.

You can also find some great resources, check out Amber’s blog and get more information on the book and Amber Walker by going to

Still not convinced you need Mast Cells United in your library? Check out the reviews and excerpts: Mast Cells United on Amazon

So what have you been reading lately on your condition? I would love to hear all about it in the comments! And if you’re an author, I’m always looking for health and wellness books to review as well as memoirs and novels that delve into the experience of people leading lives with chronic illness. As always thanks for reading and supporting the Zebra Pit. We hope this book brings you much healing and relief!

8 thoughts on “Book Review: ‘Mast Cells United’ by Amber Walker

  1. This is a fantastically detailed book review and as a fellow EDSer you have sparked my interest. I know a little about MCAS and am convinced that it is present in my household, but is undiagnosed. The book sounds like it is detailed yet easy to understand – it may have to be added to our current family “bible” (Understanding Hypermobile Ehlers Danlos Syndrome and Hypermobility Spectrum Disorder by Claire Smith). Thanks, Claire

    Liked by 1 person

    1. So glad you’re being proactive about it! It’s hard to diagnose and there are so few truly qualified experts. A comprehensive book like this, with the work and opinions of many experts is incredibly valuable. I haven’t read Smith’s book yet, but it’s on my list. If you’re using it as your EDS bible, it’s definitely a must! Have you checked out Jeanne Di Bon’s book that recently came out on her integral movement method for Hypermobility? It’s amazing. I reviewed it a couple of months ago. It’s called ‘Hypermobility Without Tears’. I hope you get a ton from MCU! Thanks so much for adding your thoughts and reminding me about Smith’s book!

      Liked by 1 person

  2. I must admit I’ve not a clue what the literature on mast cells is like but I can’t imagine there being a wide range of choice on Amazon if you’re looking for information or support. I love the idea of how comprehensive it is, while being easy to read and understand. It’s brilliant she covers so many aspects, from environmental factors to treatments; a ‘MCAS bible’, that’s a good way of describing it. You’ve done this book proud – a fantastic review!
    Caz xx

    Liked by 1 person

    1. What a great compliment! Thank you so much, Caz! I really enjoy reviewing books of all kinds, and love to support all these great writers. I was amazed how easy it was for me to follow along. MCAS is a very complex disease and it really took a while for me to get my thoughts around it all when I first began studying it. And I learned so much more from this book! Always a pleasure, Caz! Thanks so much for stopping by. xx

      Liked by 1 person

  3. Hmmm. I read that book and though it may be useful it was full of “gems” such as :
    “It’s been well established that heavy metal exposure, in particular mercury, may be associated with autism spectrum disorders”. I’m finding a lot of MCAS books are very misinformed about autism unfortunately.


    1. I’m sorry you found that idea upsetting. I hope you still found value in the book. I learned quite a lot, myself. In my experience, it’s difficult to find someone you agree with 100% of the time. There are many working theories with strong data behind them about ASD that may feel political, but the questioning of it is not so much how to eradicate it as to how to prevent the exacerbation and creation of symptoms that come with genetic mutations due to those environmental triggers. There’s nothing wrong with being Autistic or having EDS or any or genetic differences. Where the problem comes in, imo, is when we interact with chemicals that are hazardous to us. Many experts working on many different conditions today generally accept the idea that environmental factors can be a trigger for a broad range of conditions and/or the exacerbation of their symptoms. It certainly would explain why we’re seeing such an uptick in them all. I’m certainly not saying it’s the only answer, but it seems like a piece of the puzzle based on my personal experience and what I’ve read. Thanks for taking the time to read my review and sharing your thoughts!


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