Deep Nutrition: Why Your Genes Need Traditional Food is an in-depth exploration of how the traditional diets of human cultures throughout time have shaped our genetic development. Written by Dr. Catherine Shanahan, a physician and nutrition expert, Deep Nutrition examines how our diet affects our longevity, wellness, and overall health. The book examines how nutrition affects gene expression, which can influence long-term health and longevity. It also looks at the interconnectedness of nutrition, history, and current events. Shanahan examines the healthiest and most nutrient-dense diet available and how the healthiest foods were traditionally eaten. The book includes scientific research and real-life case studies, including the exploration of the Mediterranean diet and the link between nutrition and fertility. Deep Nutrition also offers practical advice and techniques for making the most nutritious foods part of our everyday diet.