Intermittent fasting

based on 2 reviews

Goal: lose weight 

Be aware: this is only the goal of this diet, not necessarily its outcome. Results vary from person to person. Consult your doctor or dietician before starting this (or any other) diet.

Intermittent fasting

Intermittent fasting is an eating pattern in which you alternate between fasting and eating in (variable) time intervals. It limits the time in which you are allowed to eat, but has no rules on what to eat.

On the homepage you can compare this diet with other diets.

[Adwords item: Display-ad vierkant]

Periods without food

Intermittent fasting is based on the idea that the human body can cope well with periods without food, because in the past (and still today) people did not always have access to food.  

The fasting window

If you decide to do intermittent fasting you can start by thinking about how long you would like to fast. Some people fast for 14 hours, others for more than 24 hours. This depends very much on what fits their life and their bodies best. It is possible, for example, to skip breakfast. In this example you eat from 12:00 to 20:00. The rest of the day, a total of 16 hours, is reserved for fasting.

During the fasting window you are not allowed to eat anything. You are, however, allowed drink tea, coffee and water.

Fasting for weight loss

After a meal, you can rely on the energy you have absorbed for a while. How long depends on many factors. For example, how active you are at that moment.

The assumption here is that you can make use of the energy you have absorbed for about 8-12 hours after your last meal. After this time you should start to burn off (more) reserves. The idea is that this can help you lose weight.

[Adwords item: InArticle-ad]

Not about what you eat, but when you eat

As described in the TRF diet (a variant of intermittent fasting), this diet is all about when you eat, not about what you eat. Hence, you are allowed to eat and drink anything you want, as long as it is outside your fasting period.

Difference with religious fasting

It is important to note that intermittent fasting is different from religious fasting. Religious fasting is about abstinence for spiritual reasons. This can be abstinence of food, but also abstinence of e.g. smoking, drinking and sex.

Intermittent fasting by itself has no spiritual aspects and only focusses on abstinence of food for certain periods of time.

Be aware!

Consult your doctor or dietician before starting this (or any other) diet, especially if you have diabetes or bowel problems.

[Adwords item: Display-ad vierkant]

Books on intermittent fasting

Many books have been written on intermittent fasting. We've listed some paid ad links from amazon and ebooks for you below:

Podcasts on intermittent fasting

Besides the books, there have also been a lot of podcasts on intermittent fasting. For example the series by Gin Stephens from Fast. Feast. Repeat (paid link). as listed above: Fast. Feast. Repeat. Intermittent Fasting For Life (paid link):

Diets that make use of intermittent fasting

Several diets use intermitted fasting. Some are variants in which you fast for a set period, like the 4:3 diet, the 5:2 fasting diet and the 8-hour diet (or the dr. Ludidi fasting method that combines the last two).

Others combine the idea of intermittent fasting (when you eat) with an advice on what to eat. Examples of such diets are the Longevity diet, the Galveston diet, the Shepherd's diet and the Fast 800.

There is also a diet in which you try to make your body think you are fasting: the Fasting mimicking diet.

This page has been checked, and warnings have been added by, Jolande, dietician. Read more here.

Did you notice a mistake?

Did you notice a mistake on this page? Please let us know.

Back to the home page

Allowed

  • Tea
  • Coffee
  • Water
  • All products (when not fasting)

Goals

  • Lose weight
  • Part time

Exercise

As you see fit

Reviews (2)
Iva Oei, Dietician practice HRC
Dietician

Intermittent fasting is a trendy diet currently touted mostly on sports forums. However, it is not recommended by (sports) dieticians. I wouldn't call it a real diet either, more a way of cutting down on calories. That this sounds attractive and can lead to weight loss I do understand; less intake potentially means weight loss. On the other hand, at some point the body gets used to the shorter period anyway, so you start choosing food with more calories out of instinct. Furthermore, skipping meals can lead to your body using its own substances, such as your muscles, to make up for the shortfall in the morning. What you then eat in excess in the evening, you convert back into fats. Such choices can also cause a disturbance in the regulation of hunger and, in the worst case, lead to overeating later on. Also, the sudden intake of your first meal causes a spike in blood sugar levels, and your stomach and intestines suddenly have to work very hard to digest everything. This can lead to drowsiness. In diabetics, the chances of a hyper followed by a hypo can become increased.

Erik

I tried 24-hour fasting once. It's a bit crazy, but doable. The next day, I wasn't hungry at all either.

https://selectyourdiet.com/en/diet/intermittent-fasting Intermittent fasting is a trendy diet currently touted mostly on sports forums. However, it is not recommended by (sports) dieticians. I wouldn't call it a real diet either, more a way of cutting down on calories. That this sounds attractive and can lead to weight loss I do understand; less intake potentially means weight loss. On the other hand, at some point the body gets used to the shorter period anyway, so you start choosing food with more calories out of instinct. Furthermore, skipping meals can lead to your body using its own substances, such as your muscles, to make up for the shortfall in the morning. What you then eat in excess in the evening, you convert back into fats. Such choices can also cause a disturbance in the regulation of hunger and, in the worst case, lead to overeating later on. Also, the sudden intake of your first meal causes a spike in blood sugar levels, and your stomach and intestines suddenly have to work very hard to digest everything. This can lead to drowsiness. In diabetics, the chances of a hyper followed by a hypo can become increased. 1 out of 5
https://selectyourdiet.com/en/diet/intermittent-fasting I tried 24-hour fasting once. It's a bit crazy, but doable. The next day, I wasn't hungry at all either. 4 out of 5
Add review

Dietitians

With the professional help of a dietitian it should be easier to reach your goals. Please contact a dietician in your area or talk to a doctor before starting any diet.

General warnings

Please take note that most diets do not have a scientific basis.

Consult your doctor or dietician before starting a diet, especially if you have a chronic condition like diabetes, cardiovascular disease, lung disease or kidney disease.

Eating disorders

If you think you might have an eating disorder (like anorexia or bulimia), it is important to look for professional help. Contact your (house) doctor or find help elsewhere. Here you can find a list of several websites that can provide (online) help. These sites also provide information for people that know someone with an eating disorder.