Preferred fuel for body in fasting state:
The preferred fuel for the body in:- Fed state is mainly Carbohydrates i.e. Glucose. Fasting state is mainly Fats. Fats stored in adipose tissues are broken down to fatty acids to give energy during fasting and starvation.
Carbohydrates
Fats
Proteins
Amino acids
Fuel in Fed, Fasting and Starvation