CONTENTS xiii 



79 Lipide mefabolism 453 



Fat catabolism 453 

 Biosynthesis of fatty acids 457 

 Cholesterol metabolism 460 



20 Profein metabolism ^^3 



Utilization of proteins 463 

 Excretion of nitrogen 481 

 Protein synthesis 485 



21 Energy ^95 



Energy contents of foods 496 

 Energy from foods 501 



Appendix •575 



Index ^^^ 



