Grass Fed Farming explores the critical differences between grass-fed and grain-fed livestock farming, focusing on environmental sustainability, animal welfare, and nutritional value. The book argues that transitioning to grass-fed systems offers a pathway to a more responsible food system. It highlights the impact of concentrated animal feeding operations (CAFOs) on greenhouse gas emissions and land degradation, contrasting them with the potential environmental benefits of grass-fed farming. Understanding ruminant digestive physiology is key, as it reveals how grass-fed animals can produce more nutritious food while minimizing environmental impact.The book systematically compares the nutritional profiles of meat, dairy, and eggs from both systems, emphasizing variations in fatty acid composition, vitamin content, and antioxidant levels. It presents data-driven evidence from scientific studies and real-world case studies of successful grass-fed farms. From there the book connects to multiple fields, analyzing environmental science, human health, and economics, providing a comprehensive view of the topic. It begins with ruminant physiology, moves through historical context and environmental impacts, and culminates in a nutritional analysis and potential policy solutions.