GPT and Decreased liver function: In a systematic review and a meta-analysis of studies assessing the effect of vitamin E on liver dysfunction, including the most commonly used biochemical indices in NAFLD patients, i.e., serum aminotransferases such as alanine aminotransferase (ALT) and aspartate aminotransferase (AST), Vadarlis et al. [20] concluded that vitamin E supplementation can reduce the levels of aminotransferases compared with a placebo.