About JCNS

Japan Chrono-Nutrition Society, has been established in 2014 as the successor to the Research Group of Chrono-Nutritional Science. Our bodies are governed by internal clocks that regulate various physiological functions—including sleep-wake cycles, body temperature, hormone secretion, and even disease symptoms—based on circadian rhythms. Following the discovery of clock genes in the late 20th century, the molecular mechanisms of circadian rhythms have been studied intensively, leading to the emergence of chronopharmacology—a field that considers the optimal timing of drug administration to enhance efficacy and reduce side effects. Chrono-nutrition builds upon these insights, adding a temporal dimension to traditional nutrition by asking not only what and how much to eat, but also when to eat. Japan’s long-standing traditions of preventive health, such as Ishoku Dogen and Mibyo, have supported the development of chrono-nutrition as a globally pioneering academic field. In today’s aging society, promoting health through lifestyle-based approaches is more important than ever. As 24-hour lifestyles and stress-related mental health issues increase, chrono-nutrition can contribute to the well-being of people across all generations.
Our society fosters collaboration among researchers, clinicians, dietitians, and industry professionals. We are committed to advancing research, sharing knowledge with the public, and implementing evidence-based practices in society. We appreciate your continued support and cooperation in promoting the field of chrono-nutrition.