How does it work? It has never been so simple: with vitelements, the vital-substances bar. Low in calories, satisfying and nutritious! Dr Marc Weitl, the Managing Director of vitelements, had aimed high with this ambitious goal. And why not? The doctor of sports medicine ultimately had the same goal in mind when he founded cardioscan 15 years ago. cardioscan is a medical check-up programme designated for use in gyms and fitness studios, and which now motivates millions of people worldwide to keep fit.