Several signaling pathways affected by metabolites in the MVA pathway involved in the progression from NAFLD to HCC. The progression of NAFLD to HCC is classified into four phases: normal liver, NAFL (simple steatosis), NASH, and HCC. When NAFLD develops, insulin resistance occurs as PI3K-Akt is activated in the liver. Simultaneously, LXR-α and AMPK, sensors of metabolic state dysfunction, promote DNL and glucose uptake. Activation of Rac1 and Ras-FasL is involved in the development of NASH by promoting cirrhosis and apoptosis. Then the Ras-ERK1/2 axis mediates proliferation, leading to the onset of HCC. All of the above pathways are regulated by metabolites in the MVA pathway, and corresponding targeted therapies have been developed.