Fasting and Man's Correct Diet by R. B. Pearson is a classic in the field of natural health and diet reform, blending early 20th-century nutritional theory with practical advice on fasting and dietary discipline. Pearson presents a passionate case for fasting not as deprivation but as a therapeutic practice—one that restores balance, purifies the body, and supports both physical and mental well-being. The book outlines the principles of "correct diet," emphasizing simple, natural foods, moderation, and the avoidance of what Pearson regarded as harmful modern habits. Drawing on both personal observation and contemporary reformist movements, he describes how fasting, when practiced responsibly, can cleanse the system, prevent disease, and extend vitality. At a time when industrialization was changing food production and consumption, Pearson's work stood as part of a broader movement seeking to reconnect people with natural health practices. While medical science has since advanced beyond some of Pearson's claims, Fasting and Man's Correct Diet remains a fascinating historical document of early health reform. It reflects the optimism and experimental spirit of those who believed that human well-being could be profoundly improved through discipline, simplicity, and respect for nature's laws. For modern readers, it offers not only a window into the evolution of diet and health thought but also a reminder of the enduring appeal of fasting and natural living as pathways to wellness.