It was not contended that the diet illustrated for leucine-sensitive hypoglycemia contained only the absolute minimum amount of protein required by the child. The diet was presented in order to demonstrate that it is possible to control the disease in question by restricting protein ingestion while nevertheless supplying at least the minimum requirement, with a not unreasonable margin of safety. Certainly, "overnutrition is to be discouraged, but a diet which supplies 40-45 gm of protein to a 3-year-old child can hardly be said to conspire to promote overnutrition.