Assessment of Energy and Nutrient Intake and the Intestinal Microbiome (ErNst Study): Protocol and Methods of a Cross-sectional Human Observational Study

Andreas Dötsch   ¹ , PhD ;   Benedikt Merz   ¹ , PhD ;   Sandrine Louis   ¹ , PhD ;   Carolin Krems   ² , PhD ;   Maria Herrmann   ¹ , BSc ;   Claudia Dörr   ¹ , MD, PhD ;   Bernhard Watzl   ¹ , PhD, Prof Dr ;   Achim Bub   ¹ , MD, PhD, Prof Dr ;   Andrea Straßburg   ^{2 *} , PhD ;   Ann Katrin Engelbert   ^{1 *} , PhD

¹ Department of Physiology and Biochemistry of Nutrition, Max Rubner-Institut-Federal Research Institute of Nutrition and Food, Karlsruhe, Germany

² Department of Nutritional Behaviour, Max Rubner-Institut-Federal Research Institute of Nutrition and Food, Karlsruhe, Germany

*these authors contributed equally