How much sugar is in the blood and what does a rainbow have to do with healthy eating? How does biochemical rust protection keep our veins young and our appearance fresh? How do excess energy reserves disappear from our bodies? What keeps us full for a long time and how can I achieve my dream weight? These and many other questions are answered by biochemist and dedicated prevention expert Dr. Heide Barnert. She humorously describes the tasks our organs perform unnoticed in the background. With profound knowledge, parables, metaphors, and illustrations, she captivates the audience with the biological connections and clearly conveys which nutrients keep our bodies healthy and vital. For better clarity, additional information is framed, but it can also be easily skipped without compromising understanding.