This book adopts a global traditional culture perspective and centers on food-medicine homologous foods, a distinctive category that integrates dietary attributes, health value, and cultural significance. It systematically examines their historical formation, distribution patterns, core values, and modes of transmission across different civilizational systems. Drawing on interdisciplinary approaches from cultural studies, communication studies, and food science, the book focuses on the practical forms, cultural genes, and narrative modes of food-medicine homologous foods in East Asia, South Asia, West Asia, and North Africa, revealing their important roles in health preservation concepts, social life, the inheritance of traditional knowledge, and intercultural exchange. On this basis, it further analyzes the practical challenges faced by food-medicine homologous culture in contemporary international communication, including cognitive differences, discourse imbalance, and fragmented dissemination, and proposes a research framework and practical path that combine the activation of traditional cultural genes, the translation of modern discourse, and multimodal communication innovation. Systematic in content and clear in structure, this book combines academic rigor, cultural depth, and practical relevance, and can serve as a useful reference for research on food-medicine homologous culture, international communication practice, and the development of related industries.