Board certified preventive medicine physician. University of Arizona fellowship grad. 20+ years prescribing LDN for chronic pain, autoimmune conditions & complex cases. Author. International speaker. Helping patients find answers.
Yoon Hang Kim, MD, MPH Board-Certified in Preventive Medicine | Integrative & Functional Medicine Physician Direct Integrative Care Published April 2026 MEDICAL DISCLAIMER: This article is for educational purposes only and does not constitute medical advice. Prolonged fasting carries real risks and should only be undertaken under the supervision of
Yoon Hang Kim, MD, MPH | www.directintegrativecare.com KEY DISTINCTION: Removal from Category 2 does NOT equal Category 1 approval. Peptides removed from Category 2 currently occupy regulatory limbo as unapproved new drugs. Full legal compounding access requires PCAC review, a favorable recommendation, and final FDA rulemaking. Until that formal
Updated 4/28/2026 Integrative Functional Medicine Serving IA | IL | MO | GA | FL | TX Yoon Hang Kim, MD, MPH Board-Certified in Preventive Medicine | Integrative & Functional Medicine Physician www.directintegrativecare.com A comprehensive examination of bioactive peptides for fitness, anti-aging, metabolism, cognition, and immune support ⚠️ DISCLAIMER: This review
CIRS
By Yoon Hang Kim, MD, MPH | Board-Certified in Preventive Medicine | Integrative & Functional Medicine Physician Chronic illness patients — especially those navigating mold illness, Lyme disease, autoimmune conditions, or post-infectious syndromes — frequently encounter two acronyms that are both confusing and critically important: CIRS and MCAS. These conditions share a
Medicinal Mushroom GI Cancer
Yoon Hang Kim MD | www.directintegrativecare.com Membership-Based Telemedicine | Integrative & Functional Medicine Medicinal Mushrooms in the Integrative Care of Gastrointestinal Cancer Yoon Hang Kim, MD, MPH Board-Certified in Preventive Medicine | Integrative & Functional Medicine Physician Medical Disclaimer This article is intended for educational and informational purposes only
Yoon Hang Kim, MD, MPH Board-Certified in Preventive Medicine | Integrative & Functional Medicine Physician Direct Integrative Care | Telemedicine Practice (TX, IA, IL, MO, GA, FL) MEDICAL DISCLAIMER: This article is intended for educational and informational purposes only and does not constitute medical advice, diagnosis, or treatment. The content reflects
menopause
Clinical Wellness Series Certified in Preventive Medicine | Integrative & Functional Medicine Physician MEDICAL DISCLAIMER This article is intended for educational purposes only and does not constitute medical advice. The information presented here should not be used to self-diagnose or self-treat any medical condition. Herbal and nutritional supplements may
low histamine diet
www.directintegrativecare.com Yoon Hang Kim, MD, MPH | www.directintegrativecare.com MEDICAL DISCLAIMER: This article is intended for educational purposes only and does not constitute medical advice. The information provided should not be used to diagnose, treat, or manage any medical condition. Individual responses to dietary interventions and probiotics vary
Yoon Hang "John" Kim, MD, MPH www.directintegrativecare.com Abstract Low dose naltrexone (LDN) is widely used in integrative medicine for autoimmune disease, chronic pain, fibromyalgia, inflammatory bowel disease, and select malignancies. Its therapeutic effect is generally attributed to a brief, transient blockade of opioid receptors that triggers
Integrative Oncology
Yoon Hang “John” Kim, MD, MPH | www.directintegrativecare.com An Academic Perspective on Integrative Oncology Why This Synthesis Matters Patients facing a serious cancer diagnosis often arrive at a familiar crossroads. The conventional oncology team hands them a treatment plan — chemotherapy, radiation, surgery, increasingly immunotherapy and targeted agents — and the
Yoon Hang Kim MD Membership-Based Integrative & Functional Medicine · www.directintegrativecare.com The Honest Truth About Low-Dose Naltrexone A Clinician’s Framework for Patients, Providers, and the LDN Community Yoon Hang “John” Kim, MD · Direct Integrative Care After two decades caring for patients with chronic, multi-system illness
1. LDN is a Modulator, Not a Single-Target Drug LDN (low-dose naltrexone) works as a regulatory agent—balancing immune and nervous system function rather than pushing physiology in one direction. It can help both hyperactive and underactive states, which is why it’s used across autoimmune, neuropathic, and