The rediscovery of an ancient folk medicine. Hemp contains a variety of healthy and healing substances, such as cannabinoids, which protect cells and the nervous system, support the immune system, and alleviate pain. Additionally, hemp has an unusually high nutrient density, including high-quality proteins. Therefore, oil, seeds, and flour are not only popular among vegans but also among active individuals and athletes. The author trio presents the current state of knowledge about cannabis in the fields of human medicine, pharmacy, and nutrition in a factual and easily understandable manner. The nutrition-specific section is complemented by a scientifically-based hemp protein diet.