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A state where the body relies more on fat than carbohydrates for energy.
As your body adapts to fasting, it becomes more efficient at using fat for energy. This reduces sudden hunger swings and makes longer fasting periods easier to handle. The transition can take a few weeks and may feel uncomfortable at first. Once adapted, energy levels tend to feel more stable throughout the day.
Fasting changes the structure of eating. This page covers how it works for weight loss, the difference between intermittent and extended approaches, and where it fits in a sustainable method.
How a low-carbohydrate diet can support weight loss when used correctly — without strict keto rules. What changes, what to watch for, and where it fits inside a deficit.
Repeating fasting, calorie control, and walking as the core routine.
A defined time period when food is consumed.
The predictable progression of physical and mental states during a fast.
The period where no calories are consumed.
The point where fat becomes the primary fuel source after glycogen depletion.
The transition from burning carbs to burning fat.
The period after a fast where fat burning remains elevated and hunger is reduced.
The phase of eating after fasting where food and glycogen return.