Do you have clients who react to everything? What if their symptoms, scattered as they seem, share one cause?

In this episode of IRH Clinician’s Corner, Margaret Floyd Barry talks with Dr. Meg Mill about mast cell activation syndrome (MCAS) and histamine intolerance, two conditions that trip up even practitioners with years of clinical experience. Dr. Mill walks through the clinical signs to watch for and makes the case for slowing down and sequencing your approach with these clients.

Inside this episode, we explore:

• The difference between histamine intolerance and MCAS
• Symptoms that point to histamine issues but rarely get connected to them
• Why perimenopause can trigger new histamine symptoms
• How gut health and histamine-producing bacteria factor in
• Why common gut-healing protocols can backfire with these clients
• Why nervous system regulation is central to resolving these cases

The Clinician’s Corner is brought to you by the Institute of Restorative Health.

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Connect with Dr. Meg Mill:

Website: http://www.megmill.com

Instagram: https://www.instagram.com/drmegmill/

Get Dr. Meg’s FREE guide on MCAS: https://go.megmill.com/mcas

And her FREE guide on Histamine Intolerance: https://go.megmill.com/histamine

Dr. Meg Mill is a leading women’s health expert, Doctor of Clinical Pharmacy, and Certified Functional Medicine Practitioner with over two decades of clinical experience. She helps women around the world resolve chronic symptoms like fatigue, digestive issues, migraines, hormonal imbalances, and histamine-related conditions—especially when conventional medicine has failed to connect the dots.

She empowers women to rebalance their bodies, regulate their nervous systems, and reclaim their energy, clarity, and confidence. Through her virtual Functional Medicine practice, Dr. Meg has guided hundreds of women to lasting relief and transformation worldwide.

A bestselling author and host of the top-rated podcast A Little Bit Healthier, she’s also a sought-after speaker and summit host. Her work has been featured on Fox News, CNN, ABC, NBC, CBS, and in Forbes Health, Reader’s Digest, Health Magazine and Mind Body Green.

Connect with IRH:

Margaret Floyd Barry is teaching a free session on September 15 for practitioners who want a smaller, structured offer to bring new clients in the door. She’s walking through how to build a challenge-style entry point using CGM data, tested across real client volume in her own corporate wellness practice. If you’ve been asking too much, too soon, of new clients before they know you, this is worth an hour. Register Here!

Timestamps:

00:00 Upcoming glucose monitor challenge

09:21 Understanding overactive mast cells

13:51 Understanding immune system triggers

18:14 Addressing severe food reactions

26:13 Understanding histamine intolerance in patients

31:30 Identifying histamine intolerance symptoms

34:35 Microdosing supplements for healing

40:14 Balancing hormones and detox pathways

47:05 Focusing on cell and hormone health

52:24 Importance of setting client expectations

54:13 Challenges with rigid health protocols

01:02:02 Guides on histamine intolerance and mast cell activation

Keywords:

functional health, MCAS, mast cell activation syndrome, histamine intolerance, histamine symptoms, continuous glucose monitor, CGM challenge, diamine oxidase, methylation, nervous system regulation, gut health, stool testing, histamine-producing bacteria, perimenopause, estrogen-progesterone balance, mold toxicity, immune system, detox pathways, methylation support, B vitamins, thiamine, glutathione, adrenals, hormone imbalances, thyroid health, autoimmune disease, SIBO, probiotics, low histamine diet, mast cell stabilizers, food sensitivities

Disclaimer:

The views expressed in the IRH Clinician’s Corner series are those of the individual speakers and interviewees, and do not necessarily reflect the views of the Institute of Restorative Health, LLC. The Institute of Restorative Health, LLC does not specifically endorse or approve of any of the information or opinions expressed in the IRH Clinician’s Corner series. The information and opinions expressed in the IRH Clinician’s Corner series are for educational purposes only and should not be construed as medical advice. If you have any medical concerns, please consult with a qualified healthcare professional. The Institute of Restorative Health, LLC is not liable for any damages or injuries that may result from the use of the information or opinions expressed in the IRH Clinician’s Corner series. By viewing or listening to this information, you agree to hold the Institute of Restorative Health, LLC harmless from any and all claims, demands, and causes of action arising out of or in connection with your participation. Thank you for your understanding.