APOB and cancer: The top five features in each category—clinical parameters (BMI, total cholesterol, LDL‐cholesterol, apolipoprotein B, and glomerular filtration rate), plasma metabolomics (alpha‐ketoglutarate, cholesteryl sulphate, L‐glutamic acid, TMAO, and clopidogrel carboxylic acid), and gut microbiota (Alistipes, Collinsella, Clostridia_UCG‐014, Streptococcus, and Bacteroides)—may serve as candidate biomarkers for the occurrence of CA (Figure 4E).