Mast cell activation syndrome (MCAS) affects more than 15% of the U.S. population but evades most practitioners’ radar. Just five years ago, it wasn’t even on my radar, despite already having 20 years of experience as a clinician at that time. The more I dug (similar to leaky gut and post-COVID syndrome), the more I found my patients were suffering from this disorder.
Peter Holmes, LAc, MH
Peter Holmes researches, writes and lectures extensively on the clinical uses of essential oils and herbal medicines. He is author of The Energetic of Western Herbs: Treatment Strategies Integrating Western & Oriental Herbal Medicine, Jade Remedie: A Chinese Herbal Reference for the West and The TCM Materia Medica Clinical Reference & Study Guide. He is also author of Clinical Aromatherapy: Essential Oil Profiles, and coauthor of the forthcoming Principles and Practice of Aromatherapy.