All are TRUE regarding Net Protein Utilisation, except -
Increase in weight per unit weight of consumed is called protein efficiency. NPU is the nitrogen retained by the body per nitrogen intake. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 586)
It is the increase in weight per unit weight of consumed
NPU of cow - milk is 81%
NPU of average Indian food is 50-80%
If NPU is low, more protein is required
Nutrition and health