A recent open-label prospective study including forty patients with NAFLD demonstrated significant improvements in liver enzymes, with alanine aminotransferase decreasing from 99 U/L (sd 45) to 36 U/L (sd 21) and aspartate aminotransferase from 54 U/L (sd 44) to 27 U/L (sd 10) after 6 months on a strict vegan diet(37). This evidence concerns the gene GPT and metabolic dysfunction-associated steatotic liver disease.