Even the most health conscious among us have a hard time figuring out what to eat in order to lose weight, stay fit, and improve our health. And who can blame us? When it comes to diet, there's so much changing and conflicting information flying around that it's impossible to know where to look for sound advice. Dr. Mark Hyman takes a close look at every food group and explains which foods nurture our health and which pose a threat. From grains to legumes, meat to dairy, fats to artificial sweeteners, Dr. Hyman debunks misconceptions and breaks down the science. He also explains food's role as powerful medicine capable of reversing chronic disease and shows how our food system and policies impact the environment, the economy, social justice, and personal health, painting a holistic picture of growing, cooking, and eating food in ways that nourish our bodies and the earth while creating a healthy society.