Nutrition is an essential part of life. It affects our health and can be applied in the prevention and treatment of disease. Substantial interventions in dietary intake and lifestyle changes have been demonstrated to cause significant decrease in disease risk in in the general population and also in patients suffering from various diseases. Traditional plant-based diets and medicines have received much attention as an alternative to modern science-based drugs, while recent technology development in bioinformatics, genomics, and proteomics has provided a better understanding of plant-based drugs, improved quality assurance and allowed the acceleration of clinical trials to bridge the gap with Western medicine. Moreover, research in nutrigenomics and epigenomics has further enhanced the knowledge of the association between nutrition and disease. The book deals with the concerns of the future well-being of our planet, the health of the global human population related to the worldwide obesity epidemic, the issues related to sustainable food production, and the need for a switch to a healthier, more plant-based diet.