Vitamin C May Counteract 'Ferro-Aging' by Blocking Iron-Driven Cellular Decay
A 2026 study in Cell Metabolism identifies 'ferro-aging' as a key driver of biological decline, caused by gradual iron accumulation in tissues that damages cell membranes. Researchers found that vitamin C directly inhibits the enzyme ACSL4, which drives this process. In a 40-month trial, older monkeys given vitamin C showed reduced ferro-aging markers, improved organ health, and reversed biological age clocks. While ferro-aging differs from rapid cell death (ferroptosis), it causes slow, cumulative damage to high-energy organs like the heart, liver, and brain. The findings suggest vitamin C supplementation may be a low-cost, accessible strategy to mitigate age-related cellular wear, though more human trials are needed.