APOC3 and metabolic dysfunction-associated steatotic liver disease: Specifically focusing on the oxidative status of intact ApoC‐III, studied through its major glycoforms (ApoC‐III0, ApoC‐IIIi and ApoC‐IIIii), we observed a marked reduction in non‐oxidised forms of these circulating peptides alongside substantially increased levels of their oxidised proteoforms in MASLD versus controls (but not within the disease stages).