GPT and metabolic syndrome: Emerging studies have demonstrated the effects of dietary polyphenols on dyslipidemia by reducing circulating levels of low-density lipoprotein (LDL), very low-density lipoprotein (VLDL), and promoting high density lipoprotein (HDL) levels, while improving liver function as noted by improved aspartate and alanine aminotransferase (AST and ALT) levels (10–13).