When Eating Feels Like a Minefield: A Story of MCAS, Ketotifen, and Low-Dose Naltrexone By Yoon Hang Kim, MD, MPH Board-Certified in Preventive Medicine | Integrative & Functional Medicine Physician 🎥 Watch the short version: MCAS, Ketotifen & LDN — a client story For people living with mast cell activation syndrome (MCAS), eating can feel like a minefield. A food that was fine last month triggers flushing, hives, gut pain, or brain fog today. Over time, many people respond

Yoon Hang Kim, MD, MPH Board-Certified in Preventive Medicine | Integrative & Functional Medicine Physician www.directintegrativecare.com Medical Disclaimer: This article is for educational and informational purposes only and does not constitute medical advice, diagnosis, or treatment. The information presented reflects general principles of integrative and functional medicine and is not intended as a substitute for individualized care from a qualified healthcare provider. Al

Yoon Hang Kim, MD, MPH Board-Certified in Preventive Medicine | Integrative & Functional Medicine Physician www.directintegrativecare.com Disclaimer: This blog post is intended for educational and informational purposes only. It does not constitute medical advice, diagnosis, or treatment. Low dose naltrexone (LDN) is used off-label for essentially all of the conditions discussed below; it is not FDA-approved for any of them. Always consult with a qualified clinician before st

Can Low-Dose Naltrexone (LDN) Help with Vascular Insufficiency and Pelvic Congestion Syndrome? At our integrative and functional medicine...

How to Approach Your Doctor About Low-Dose Naltrexone (LDN): A Patient's Guide to a Productive Conversation Written and medically reviewed by: Yoon Hang Kim, MD, MPH Board-Certified in Preventive Medicine | Integrative & Functional Medicine Physician www.directintegrativecare.com Disclaimer: This article is intended for educational and informational purposes only and does not constitute medical advice, diagnosis, or treatment. Low-dose naltrexone (LDN) is used off-label for t

How membership-based integrative and functional medicine works — and whether it's right for you Written and medically reviewed by Yoon Hang Kim, MD, MPH Board-Certified in Preventive Medicine | Integrative & Functional Medicine Physician Based in San Antonio, Texas · Virtual practice serving TX, IA, IL, MO, FL, and GA www.directintegrativecare.com Last updated: August 2026 Medical Disclaimer: This article is for educational and informational purposes only. It does not constit