Before we dig into the extremely promising randomized trial, it’s important to understand that over 100 studies and decades of evidence reveal that vitamin C exerts anti-cancer effects through four powerful mechanisms: pro-oxidative cytotoxicity, epigenetic reprogramming, signaling-pathway suppression, and immune activation. A recent comprehensive review paper titled, High-dose vitamin C: A promising anti-tumor agent, insight from mechanisms, clinical research, and challenges, analyzed 150+ studies and found that when vitamin C reaches true pharmacologic levels (20–30 mM), it behaves like a targeted, tumor-selective therapy — something past trials missed by under-dosing.
A randomized controlled trial found that adding 75g IV vitamin C to chemotherapy doubled median survival compared with chemotherapy alone — in one of the deadliest cancers known. https://t.co/NwWR6VTqjr
— Nicolas Hulscher, MPH (@NicHulscher) March 26, 2026

