Richard Z. Cheng, M.D., Ph.D.

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August 2025

July 2025

🧪 The Forgotten Remedy: A Clinical History of Low-Concentration Hydrogen Peroxide (≤3%) Therapy
A century-old antiseptic. A modern medical underdog. Is it time to rethink hydrogen peroxide?
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Richard Cheng, M.D., Ph.D.
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COVID-19 and Long COVID: An Integrative Antiviral and Antioxidant Protocol
Targeting Oxidative Stress and Mitochondrial Dysfunction for Recovery and Resilience
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Richard Cheng, M.D., Ph.D.
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A Personal Update from Dr. Richard Z. Cheng – 20 Years of Trust, From Columbia to the World
This message is specifically to my longtime patients and friends — here’s what I’ve been working on, and how we can reconnect.
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Richard Cheng, M.D., Ph.D.
1
Vitamin D and Cancer: What the Latest Science Tells Us
Why It’s Time to Raise the Bar)
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Richard Cheng, M.D., Ph.D.
Hydrogen Peroxide: A Forgotten Therapy That Worked Where Antifungals Failed
We published an intriguing case today on the Orthomolecular Medicine News Service about using low-dose oral hydrogen peroxide (H₂O₂) to treat chronic…
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Richard Cheng, M.D., Ph.D.
2
💇‍♀️ Hair Loss on the Ketogenic Diet: Should You Be Worried?
In the past ~20 years of teaching and coaching my clients on the low-carb/ketogenic diet as a foundational step in Integrative Orthomolecular Medicine…
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Richard Cheng, M.D., Ph.D.
Controlling Inflammation Is the First Step to Reversing Atherosclerosis
A Doctor’s Personal Journey of Healing
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Richard Cheng, M.D., Ph.D.
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