Ayurveda, an ancient system of medicine from India, places significant emphasis on nutrition as a key component of health and disease prevention. Unlike conventional approaches, ayurvedic nutrition focuses on the individual, recognizing that each person’s body and mind operate uniquely based on their constitution, or dosha—Vata, Pitta, and Kapha. In this system, food is seen not just as fuel but as a vital tool for maintaining balance and harmony in the body. By understanding how different foods and eating practices interact with our physiology, ayurvedic principles offer personalized dietary recommendations aimed at supporting digestion, metabolism, and overall well-being. This chapter explores the scientific foundation of ayurvedic nutritional concepts in relevance to the dietary practices mentioned in various Ayurveda classics. The text discusses the importance of food in Ayurveda, different concepts related to the food such as types of food, basic principles of digestion, major primary attributes of food, relation of food with sense organs, bodily constitutions and seasons, daytime variation in food, etc. The chapter also encompasses various dietary rules mentioned in Ayurveda, sequence of consuming foods, key factors influencing the utility of food, food adjuvants, etc. A thorough exploration of Ayurveda offers valuable insights that can enhance our understanding of health and nutrition, potentially leading to more effective healthcare solutions. Ultimately, adherence to these dietary principles and practices is essential for fostering a healthy life, promoting overall wellness and preventing illness.