Water fasting inherently restricts calorie intake, which can lead to weight loss. When the body doesn't receive calories from food, it starts utilizing stored glycogen and fat for energy.
During a water fast, the body transitions into a state of ketosis, where it relies on fat stores for energy. This increased fat oxidation can contribute to weight loss.
Fasting can lead to decreased insulin levels, which may improve insulin sensitivity. Lower insulin levels can facilitate the breakdown of stored fat for energy.
Fasting may stimulate a process called autophagy, where the body breaks down and removes damaged cells and cellular components. This process may contribute to weight loss and overall health.
Some studies suggest that short-term fasting can lead to changes in metabolic rate, potentially promoting weight loss. However, the long-term effects on metabolism are still an area of research.
Fasting may influence hormones that regulate hunger and satiety, potentially leading to better appetite control. Some individuals report reduced cravings and a smaller appetite after fasting.
Water fasting can result in the loss of water weight, which is often stored in the body due to factors like high sodium intake. This initial weight loss may be regained when normal eating patterns resume.
Fasting can promote a more mindful approach to eating, encouraging individuals to pay attention to hunger and fullness cues. This awareness may contribute to better long-term eating habits.