From a preventive/therapeutic perspective, Takamisawa et al. [37] reported that higher anti-P. gingivalis IgG was associated with increased odds of elevated ALT (particularly in women), while Kamata et al., 2022 [34] demonstrated, in a randomized trial, that scaling and root planing (SRP) significantly reduced liver enzymes and endotoxin alongside improvements in periodontal parameters, supporting periodontal therapy as a potential adjunct for NAFLD with periodontitis. Here, GPT is linked to periodontitis.