Autoimmune hepatitis (AIH) arises as a result of environmental and immunological interactions. Herbal and dietary supplements (HDS) are known triggers, and approximately half of the U.S. adult population consumes them, even though they are restricted. Therefore, the importance of recognizing potential triggers of AIH is considered relevant. The mechanism behind HDS Camellia Sinensis inducing AIH is related to its compounds, catechins, which induce reactive oxygen species leading to a liver immune-mediated response. We present here a challenging case of a middle-aged woman with AIH following the consumption of a weight-loss Mexican green tea containing Camellia Sinensis.