When there is no other source of glucose, liver and muscle glycogen would be exhausted after
Were there no other source of glucose, liver and muscle glycogen would be exhausted after about 18 hours of fasting. As fasting becomes more prolonged, so an increasing amount of the amino acids released as a result of protein catabolism is utilized in the liver and kidneys for gluconeogenesis. Reference: Harper; 30th edition; Chapter 14; Page no: 149
12 hours
18 hours
24 hours
36 hours
nutrition and digestion