Volatomic analysis identifies compounds that can stratify non-alcoholic fatty liver disease

•Metabolic dysfunction in liver disease is reflected in the biocomposition of exhaled breath.•Specific volatile organic compounds can be measured in breath samples (volatomics) and have diagnostic potential in chronic liver disease.•Levels of alfa-terpinene, dimethyl sulfide, and D-limonene in exhaled breath can be used to stratify patients with non-alcoholic fatty liver disease.