top of page
  • Instagram
  • Threads
  • Facebook

There’s a reason your symptoms keep coming back

In functional and systems-based medicine, the goal isn’t to suppress symptoms—it’s to understand why they’re happening in the first place. I focus on the root causes of Mast Cell Activation Syndrome (MCAS) and Long Covid, using an integrated, evidence-informed approach that combines clinical nutrition, biochemistry, and nervous system regulation.

MCAS doesn’t exist in a vacuum. Many of us—myself included—also navigate overlapping conditions like ADHD, Autism, Ehlers-Danlos Syndrome (EDS), POTS, and trauma-related dysregulation. That’s why this work is neurodivergent-friendly and intersectional by design.

Whether your symptoms were triggered by a virus, mold, chronic stress, or trauma, we’ll move beyond surface-level solutions like elimination diets and antihistamines. This approach addresses the gut-brain-immune axis—the deeply interconnected systems that drive chronic inflammation—and helps you learn how to regulate, rebuild, and recover.

441V0115.JPG

Hi, I'm Jess

Engineer, PhD 👩🏼‍🎓 Functional Med, MCAS Specialist

From Bedridden to Breakthrough: My MCAS Recovery Journey

A perfect storm of viral infection and mold exposure once left me completely debilitated with severe MCAS. Instead of accepting this as my new normal, I leveraged my molecular biology background and tech executive mindset to engineer my own recovery.

What began as a desperate search for answers evolved into a comprehensive healing protocol that transformed me from bedridden to hiking mountain trails again.

Today, I'm pursuing my PhD in Functional Medicine & Nutrition Psychology, specifically focused on MCAS—not just as an academic pursuit, but as a mission born from lived experience. My approach weaves together cutting-edge research with practical implementation, addressing the three critical pillars of recovery: restoring proper nutrition through targeted diet, rebalancing the nervous system, and strategically calming hyperactive mast cells.

What sets my method apart isn't just the science (though that's rock-solid)—it's the systems-based approach that creates lasting change. I've refined these protocols through both personal experience and guiding others to similar transformations, creating reproducible results where conventional approaches have failed.

Whether you're recently diagnosed or have been struggling for years, I firmly believe your recovery is possible with the right framework, personalized support, and evidence-based tools. Your journey back to health starts here.​​

denys-nevozhai-z0nVqfrOqWA-unsplash.jpg

Your Mast Cell Disorder Doesn’t Have to Own You

Navigating MCAS, Long Covid, and Histamine Intolerance — grounded in science, driven by lived experience

Meet Jess
Why Naturopathy

What is the Mast Cell Protocol?

The Mast Cell Protocol has three main parts

Vintage Apothecary Bottles

02.

Mast Cell Stabilization & Natural Antihistamines

Using evidence-based supplements and natural antihistamines, we calm mast cell overactivity to reduce flares and restore immune balance.

03.

Neuroregulation supports the full nervous system—including the brain, gut, and vagus nerve—by restoring healthy stress response pathways and reducing inflammation at its source.

I work at the intersection of Functional Medicine, Allopathic Medicine, and Plant Medicine—serving individuals navigating MCAS, Long Covid, and neuroimmune conditions with an approach that is evidence-based, trauma-informed, and deeply intersectional.

Getting Started

Find the Right Starting Point for Your Healing

Whether you're just beginning, looking for connection, or ready for personalized support, there's a path forward here for you.

Success Stories

“After months of struggling with MCAS symptoms and feeling lost, finding Jess's resources were life-changing. Her simple approach to starting with just a few safe foods helped me see improvement within days. Now, six months later, I understand my triggers and can actually enjoy life again. Her combination of scientific knowledge and personal experience makes her guidance invaluable.”

— Sarah M., Long Covid Survivor

Check out what our Community is Saying

Jess Lewis (3).png
Discovery Call

Supporting people with MCAS, Histamine Intolerance, Long Covid, POTS, and neuroimmune conditions through evidence-based, real-world strategies.

 

The information provided on this website is for educational purposes only and is not intended as medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider before making changes to your health regimen. Jess Lewis is not a licensed medical doctor and the services offered are not a substitute for professional medical care.

Jess Lewis, The Mast Cell Protocol, and the Mast Cell Reset are © 2025 by Jess Lewis 

bottom of page