When Does the Fast End? The Ultimate Guide.

When Does the Fast End? The Ultimate Guide

Fasting is an age-old practice that is well-respected by various cultures across the world. And even though fasting can have enormous health and spiritual benefits, it can also be quite confusing at times. People usually ask questions like, “When does the fast end?” “How do I know my fast is breaking?” “Do I have to fast every day?” and so on.

The following guide will take you through the basics of the different types of fasts, how long they last, and when they end. You will be able to get comprehensive answers to your questions about fasting as we go on this journey together.

Types of Fast

Before we get started, it’s crucial to know about the different types of fasts. These include:

Complete fasts

A complete fast is when you abstain from both food and water for a specific period. These types of fasts are usually medically supervised, as they can be dangerous if not done correctly.

Intermittent Fasts

Intermittent fasts involve alternating between periods of eating and periods of fasting. This type of fast can be done on a daily or weekly basis.

Partial fasts

A partial fast involves a specific type of food or drink. For instance, you might decide to fast from certain foods or drink water only.

How long does a fast last?

The duration of a fast depends on the type of fast you choose. Here are the various lengths of fasts for the most popular fasting patterns:

Complete fasts

Complete fasts usually last between 24 hours and 72 hours, with anything longer than 72 hours considered risky without medical supervision.

Intermittent fasts

Intermittent fasts last for about 16 to 24 hours, with some fasting patterns lasting between 20 and 36 hours. The most common intermittent fasting windows are:

16/8 Fasting Window: This window involves fasting for 16 hours and eating during an 8-hour period. It is one of the most popular types of intermittent fasting.

18/6 Fasting Window: This window involves fasting for 18 hours and eating within a 6-hour period.

20/4 Fasting Window: This window involves eating within a 4-hour eating period and fasting for 20-hours.

Partial fasts

The duration of a partial fast depends on the type of the fast. A typical partial fast could last for two or three days.

Signs your fast is ending or being broken

It’s essential to know the signs that your fast is ending or being broken, as this knowledge will help you stay in control of your fast. Here are some vital indicators:

Hunger Pangs

Hunger pangs are typically the first sign that your fast is broken. These are brief sensations of hunger when your stomach feels empty.


If you become thirsty, it could mean that you have broken your fast. However, it’s also essential to note that thirst is a natural feeling during fasting, but if it becomes excessive, it could be an indication of breaking your fast.


Headaches are a sign that you have broken your fast. These headaches usually occur when you haven’t been fasting for extended periods of up to 36 hours.


If you feel sudden fatigue or tiredness, especially after fasting for more than 24 hours, it could be an indication that your fast is ending.

Muscle pains

Muscle pains can occur if you go for extended periods without food, and it could be an indication that your fast is ending or needs to end.

Blood sugar fluctuations

Blood sugar fluctuations occur when you break your fast by eating sugary foods, and it could be an indication that your fast has ended.

The benefits of Fasting

Fasting has many benefits, including:

Boosts metabolism and weight loss

Intermittent fasting has been shown to boost metabolism and aid weight loss.

Improved digestion and gut health

Intermittent fasting has been linked to better digestion and gut health.

Enhanced brain function

Fasting has been linked to increased brain function, and even though it occurs when fasting is done safely.

Reduces inflammation

Fasting has been shown to reduce inflammation in the body.

Lowers cancer risk

Studies show that fasting may reduce the risk of developing cancer and other chronic diseases.


Here are some of the most frequently asked questions about fasting:

  • Is fasting safe?
    • For most people, fasting can be safe, but anyone who wants to fast should consult their nutritionist or physician before starting. It is also important to follow safe fasting practices while fasting.
  • What should I break my fast with?
    • It’s recommended to break your fast with a light meal such as juice, fruit, or a small meal.
  • Can I exercise while fasting?
    • Yes, you can exercise while fasting, but it is essential to start slowly and make sure that you stay hydrated throughout your workout.
  • What should I do if I break my fast unintentionally?
    • If you break your fast unintentionally, you should stop eating and try again the next day or after an appropriate time period of rest.
  • When should I end my fast?
    • You should end your fast when you experience any of the above-mentioned signs of a broken fast or when you’ve reached the end of your intended fasting period.


In conclusion, fasting is an excellent way of boosting our spiritual and physical health. Knowing what type of fast to choose, its benefits, and its side effects are essential to embark on this journey. Providing it is done safely, fasting can lead to a healthier and happier lifestyle.


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