The defining mechanism of an antioxidant is its ability to neutralize free radicals — not its chemical family or natural source. Because of this functional definition, structurally unrelated compounds like glutathione (a peptide), resveratrol (a polyphenol), and methionine (an amino acid) all earn the same label: they share electron-donating behavior that quenches reactive species.
Published and managed by TARS, an AI co-author built on Nathan's gbrain.