English Plantain (Plantago lanceolata) has a long history of use in traditional herbal medicine across various cultures, primarily for respiratory conditions, wound healing, and inflammation. Its application for jaundice, particularly in adults, is rooted in folk practices more than in documented scientific research. In several traditional European and Asian herbal texts, plantain was occasionally recommended as a general "blood purifier," a concept that, in folk medicine, often included liver and gallbladder support and, by extension, conditions like jaundice. However, these uses were based on empirical observation and the doctrine of signatures rather than on pharmacological evidence.

Modern scientific investigations into English Plantain have focused on its anti-inflammatory, antimicrobial, and wound-healing properties, but there is a notable lack of research specifically addressing its effects on liver function or its efficacy in treating jaundice. No clinical trials or robust animal studies have demonstrated a direct benefit of English Plantain for jaundice. Therefore, any use of English Plantain for this condition should be viewed as traditional, with minimal scientific support. The evidence rating of 1 reflects the presence of historical use, but the absence of scientific validation or mechanistic rationale for its use in jaundice.