1. Institute of Aerospace Medicine (J.B., P.F.-M., M.H.), German Aerospace Center, 51147 Koeln, Germany
2. Research Institute of Child Nutrition (T.R.), 44225 Dortmund, Germany
3. Department of Pharmacology (C.M.-G.), University of Heidelberg, 69117 Heidelberg, Germany
4. Department of Nutrition and Food Science (P.S.), University of Bonn, 53113 Bonn, Germany
5. Department of Medical, Technological and Translational Sciences (G.B.), University of Trieste, 34128 Trieste, Italy
6. Profil Institute for Metabolic Research GmbH (M.H.), 41460 Neuss, Germany