How Long Should A Person Do Intermittent Fasting (And Why)?

Exact Answer: Five To Fourteen Days

Intermittent fasting is an umbrella term for intermittent energy restriction: the timing schedule between fasting and non-fasting periods. It helps in reducing the calorie intake of an individual by various methods. Some of the ways include time-restricted feeding, periodic fasting, and alternate-day fasting. Fasting is considered of very great significance in different religions.



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Intermittent fasting is an alternative to a calorie restriction diet and was first started in the 21st century to reduce the side effects caused by diet-related diseases. There are several benefits of intermittent fasting that help an individual with inflammation, hypertension, obesity, dyslipidemia, insulin resistance, and many more.

How Long Should A Person Do Intermittent Fasting

How Long Should A Person Do Intermittent Fasting?

Intermittent fasting is known to help lose weight and lower the risk of various cardiometabolic diseases in an individual. It is always advised to consult a Health Care provider to get information about the risk and benefits before making any crucial changes in the eating pattern and intermittent fasting. Fasting has been practiced for an extended period and has been identified as a very beneficial method in overcoming various health issues.

Time-restricted feeding is the process in which an individual eats only during some particular hours of a day. Its cycle generally includes eight nonfasting hours and sixteen fasting hours. In comparison, periodic fasting, also known as whole-day fasting, involved fasting for two to three days a week. However, it is individuals’ own choice to increase the number of fasting days in a week. Whereas alternate day fasting is a method in which an individual has a regular diet on one day and fasts on the next day and repeats this cycle for some time.

Age Group Of An IndividualDuration Of Intermittent Fasting
Below fifteenFive to Six days
Fifteen or aboveOne to two week

The duration of intermittent fasting depends on an individual’s age group. Children below the age of fifteen are advised not to do intermittent fasting for longer than six days. On the other hand, people aged fifteen or above can do intermittent fasting for one to two weeks. Intermittent fasting is also known as short term starvation period in different parts of the world.

Why Should A Person Do Intermittent Fasting For That Long?

Intermittent fasting helps our digestive system to repair and rest when the body is in a state of fasting. In most cases, the excess amount of fat is stored in an individual’s body. Intermittent fasting helps in burning the fat in place of keeping it and helps in reducing the weight. Intermittent fasting throws the light that the issue is not what an individual is eating but when an individual is eating. It helps reduce our body’s insulin level for a long time and helps reduce the fat stored in our body.

Intermittent fasting is more beneficial when it is combined with a proper routine of meditation and exercise. It also helps lower blood pressure and reduces the cholesterol in a person’s body, which helps slow down the aging process. In the beginning, it could be challenging to follow the schedule of intermittent fasting. Still, as time passes by, the body adjusts to the new routine. It helps an individual limit the amount of food intake, which is quite helpful.

The burning of fat usually starts after 12 hours of fasting, and it increases rapidly between 16 and 24 hours of the beginning of the procedure. A person can easily reduce one to two pounds of weight in one week. It is also recommended to consume a good amount of fluid during the fasting period as it helps in the digestion of the food.


Finally, it can be concluded that intermittent fasting is one of the best methods to reduce weight and is very famous globally. It also helps in fighting various diseases by lowering the insulin level to the required amount. It has three types, and all of them are pretty effective.

On average, an individual can do intermittent fasting for five to fourteen days, depending on the individual’s age group. Intermittent fasting helps reduce one to two pounds of weight in a week and limits the number of Calories and cholesterol levels of the body. It is also crucial to include Fluids in the fasting schedule.


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