The guide provides a comprehensive overview of harmful substances in our food: pesticides, growth regulators, gluten and glyphosate, or genetic modifications in plant-based foods, feed additives such as pharmaceuticals and hormones, or animal meal and methylmercury in animal products, and much more. It examines both unprocessed and processed foods, as well as the tricks of the food industry, such as hidden additives. The reader will learn how to avoid harmful substances in food and ultimately discover what healthy alternatives are available. In a supplementary chapter, the author offers a glimpse into what our diet might look like in the future. She places her findings in the context of healthy eating, climate and environmental protection issues, organic farming, and animal welfare.