What happens to the body if you don't eat for 16 hours?

Intermittent fasting is one of the most discussed topics in the world of healthy lifestyle. More and more people are choosing the 16/8 eating pattern, where food is consumed during eight hours, and for the remaining 16 hours, the body is given a "rest" from food. But what actually happens to the body during these 16 hours without food?

1. The body switches to "internal reserves"

After 12 hours without food, insulin levels begin to decrease, and the body switches from glucose to fat as an energy source. This activates fat-burning processes and may also contribute to weight loss.

2. Autophagy begins - natural cell cleansing

During long breaks between meals, cells initiate a self-restoration process - autophagy. This helps eliminate damaged cellular components and maintains health at the cellular level.

3. Blood sugar levels stabilize

Intermittent fasting helps normalize blood glucose levels, reducing the risk of developing type 2 diabetes. This effect is especially noticeable in people with insulin resistance.

4. Constant hunger disappears

Contrary to expectations, many note that the feeling of hunger becomes less intrusive after just a few days on the new regimen. Leptin, the hormone responsible for satiety, begins to work more effectively.

5. Brain function improves

Some studies show that intermittent fasting can stimulate the production of brain-derived neurotrophic factor (BDNF), which affects memory, mood, and cognitive functions.

Nevertheless, specialists warn: despite the many benefits, this regimen is not suitable for everyone. People with chronic diseases, pregnant women, and those taking certain medications need to consult with a doctor.