Diet for prevention and therapy: well-founded and current findings concerning our diet & detailed and practical therapy advice.
Claus Leitzmann/Claudia Müller/Petra Michel/Ute Brehme/Andreas Hahn: Ernährung in Prävention und Therapie. Ein Lehrbuch. Hippokrates 2009.
The standard book for dietary therapy: physiological basics, diet-dependent diseases with treatment recommendations, alternative diet forms and much more. Comprehensive information, well-founded and up-to-date, concerning everything that has to do with our diet. With clearly structured and detailed therapy recommendations.
Note: This book is currently only available in German.