Navigating Your Fasting Journey: What Breaks Intermittent Fasting

Intermittent fasting is not a diet in the traditional sense but is more accurately described as an eating schedule.

It doesn’t specify which foods you should eat, but rather when you should eat them.

The popularity of intermittent fasting has skyrocketed in recent years, and for good reason.

From weight loss and improved metabolic health to increased longevity and mental clarity, intermittent fasting is changing the way we think about eating.

Understanding Intermittent Fasting

Intermittent fasting is a way of eating that involves cycling between periods of eating and fasting.

Instead of focusing on specific foods, it emphasizes when you should eat.

There are various methods of intermittent fasting, all centered around setting regular times for eating and fasting.

Here are some of the most popular methods:

  1. Time-Restricted Eating (TRE): This method involves fasting for a certain number of hours each day. A common form of TRE is the 16/8 method, where you fast for 16 hours and limit your eating to an 8-hour window.
  2. The 5:2 Diet: The 5:2 Diet involves eating around 500-600 calories on two days each week, which are not consecutive. On the remaining five days, you can eat your regular meals.
  3. Alternate Day Fasting (ADF): As the name suggests, you fast every other day. Some versions of this diet allow about 500 calories on fasting days.
  4. Eat Stop Eat (ESE): This involves a 24-hour fast once or twice a week.

Each of these methods can be effective, but figuring out which one works best depends on the individual.

It’s important to experiment and find a method that fits your lifestyle.

What Breaks a Fast?

When it comes to intermittent fasting, understanding what breaks a fast is crucial. By definition, fasting means refraining from eating food.

Yet, you can consume some foods and beverages while still preserving the benefits of fasting.

Strictly speaking, any amount of calories, no matter how small, disrupts the fasting process.

If you’re following your intermittent fasting plan to the letter, that means no calories whatsoever for the entirety of your fasting window.

Experts say as long as you keep your carbohydrate intake below 50 grams per day during a fast, you can maintain ketosis.

Role of Calories in Breaking a Fast

The role of calories in breaking a fast is significant.

Nutrition experts suggest that your fast will not break as long as you eat or drink anything containing fewer than 50 calories.

Exceeding the 50-calorie limit will break your fast, and you will lose all benefits associated with fasting.

Common Misconceptions About What Breaks a Fast

There are several things that need to be clarified about what breaks a fast.

Some people believe that they can consume certain low-calorie foods or beverages during their fasting window without breaking their fast.

However, even foods with extremely low calories, like celery, still contain fiber and other nutrients that could potentially trigger your body’s digestive process.

It’s also possible that the effect of chewing may get your digestive system working, which will make you feel hungrier.

Does Drinking Break a Fast?

When it comes to intermittent fasting, it’s important to know which beverages you can consume without breaking your fast.

Let’s examine some common ones:

  1. Tea: Plain tea does not break a fast. It’s the ingredients you might add to your tea that could end up breaking your fast. While plain tea is exceptionally low in calories, common additives like sugar, cream, honey, or maple syrup are not.
  2. Bone Broth: Bone broth does contain small amounts of fat and calories, which could break a fast. However, on longer fasts—like the 24-hour fast—some fat may be okay as it can keep the body in ketosis. If you want to follow the rules strictly, though, bone broth will break your fast.
  3. “Bulletproof” Coffee: Bulletproof coffee, also known as keto coffee, is a mixture of black coffee, medium-chain triglycerides, and unsalted butter. Technically, bulletproof coffee does break your fast as it contains calories from fat. However, the impact on your overall fasting goals may be minimal, as bulletproof coffee is low in carbs and protein. If your primary goal is autophagy or complete calorie restriction, it’s best to avoid bulletproof coffee during your fast.

Remember, the goal of fasting is not just about abstaining from food but also about giving your body a break from digestion and allowing it to focus on other processes like detoxification and repair.

Supplements and Fasting

When it comes to intermittent fasting, the question often arises: Can you take supplements during your fasting window?

The answer is not as straightforward as you might think.

How Certain Supplements Can Affect Fasting

Some vitamins and supplements may have calories and added sugars, which can lead to an increase in insulin levels and break your fasting state.

Make sure to read the labels of these supplements before taking them during fasting.

For instance, it’s okay to swallow regular vitamin pills and capsules while fasting, as they are unlikely to affect insulin levels.

However, vitamins and supplements sold as gummies, liquids, or chewable tablets are typically sweetened and can stimulate an insulin response. Therefore, if you use these, it’s best to take them during your eating window.

Some supplements may support your body during intermittent fasting.

For example, certain dietary supplements may help to support the body’s transition to ketosis, reduce inflammation, suppress appetite, and increase energy expenditure.

Supplements to consider for intermittent fasting include:

  • Curcumin
  • Exogenous ketones
  • Medium-chain triglycerides (MCTs)
  • Omega-3 fatty acids
  • Soluble fiber.

However, it’s important to note that while these supplements can support your body during a fast, they should not be relied upon as a primary source of nutrition.

Always remember to consume a balanced diet during your eating window to ensure you’re getting all the nutrients your body needs.

The Importance of Personalization in Fasting

Intermittent fasting is not a one-size-fits-all approach. It’s highly personal and can be tailored to fit your lifestyle, health goals, and dietary preferences.

The beauty of intermittent fasting lies in its flexibility.

You can adjust the length of your fasting and eating windows, the types of food you eat, and even the days you choose to fast to suit your individual needs.

This allows you to reap the benefits of fasting while still enjoying your favorite foods and maintaining your social life.

However, it’s important to listen to your body and adjust your fasting protocol as needed.

If you’re feeling weak or fatigued, it may be a sign that you need to shorten your fasting window or increase your calorie intake during your eating window.

Remember, the goal of intermittent fasting is not just about weight loss but also about promoting long-term health and wellbeing.


Intermittent fasting is a powerful and flexible tool that can offer numerous health benefits.

From weight loss and improved metabolic health to increased longevity and mental clarity, intermittent fasting is changing the way we think about eating.

It’s important to remember that intermittent fasting is not a one-size-fits-all solution. What works for one person may not work for another.

It’s crucial to listen to your body and adjust your fasting protocol as needed.

Whether it’s adjusting the length of your fasting window, experimenting with different fasting methods, or figuring out what foods and drinks break your fast, the key is to find what works best for you.

Remember, the goal of intermittent fasting is not just about weight loss but also about promoting long-term health and wellbeing.

So, whether you’re a seasoned faster or just getting started, there’s something here for you.


Hi there, I'm Pranay, a fitness enthusiast who loves working out regularly and staying in shape. I'm passionate about health and fitness, and I'm always on the lookout for new and exciting ways to stay active and healthy.

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