A quantitative comparative analysis of the Four Medical Tantras of Tibetan medicine and the As⋅ṭān˙ga Hṛdaya Saṃhitā of Ayurveda: a focus on diet, medicinal materials, and preparations

This study found both differences and commonalities in their therapeutic content. The both texts differ markedly in the total amount and classification of therapeutic content, with particularly striking differences in dietary types and sources of medicinal materials, reflecting the different ecological and cultural characteristics of the Tibetan Plateau and South Asia. At the same time, there is a partial overlap between the both texts, such as 9.9% of foods, 14.1% of drinks, and 13.8% of medicinal materials are shared, with a 48% similarity in their recorded efficacies. These findings provide an empirical basis for understanding the similarities and differences between Tibetan medicine and the Ayurvedic medical system, and open new perspectives for comparative studies of traditional medicine.