Have you ever wondered what happens to your body during fasting hours? The physical and chemical changes that occur during fasting are scientifically remarkable and explain many of its health benefits.
Fasting schedule
0-4 hours after eating
The body digests food and absorbs nutrients. Insulin is high and the body stores energy.
4-8 hours
Digestion ends. Insulin starts to drop. The body uses glycogen stored in the liver and muscles.
8-16 hours
Glycogen is depleted. The body begins to burn fat as the main source of energy. Produces ketones that feed