When the deposition of hepatic fat is great,that of glycogen in the same liver is small,and when glycogen in a liver is great,fat in the liver is small.However,the reverse of these relations is not always correct.The content of FAD per g of liver tissue is independent of the percentage of the depot fat in the liver.As long as the percentage of hepatic fat is up to 4.6%,the relation between hepatic fat and of fatty acid in the serum is linear.It is likely that in the strictly normal liver the percentage of fat is between 1.8 and 4.6%., 肝脂肪量が大であると肝グリコーゲン量に少なく,肝グリコーゲン量が大きいと肝脂肪量は少なく,又,両方の量とも少ないことが多い。グリコーゲン量をx%,脂肪量をy%であらわすと,x×y