Does Intermediate Fasting Really Work?

Some research even shows that intermittent fasting can help your body retain muscle mass more effectively than calorie restriction, which may increase its appeal ( 6 ). According to one review, intermittent fasting may reduce body weight by up to 8% and decrease body fat by up to 16% over 3–12 weeks ( 6 ).

How long does it take for intermittent fasting to work?

Mattson's research shows that it can take two to four weeks before the body becomes accustomed to intermittent fasting. You might feel hungry or cranky while you're getting used to the new routine.

Which intermittent fasting has best results?

Meal skipping is likely to be most successful when individuals monitor and respond to their body's hunger signals. Essentially, people using this style of intermittent fasting will eat when they are hungry and skip meals when they are not. This may feel more natural for some people than the other fasting methods.