Zero Calorie Drinks Intermittent Fasting Guidelines

zero calorie drink

zero calorie drink

Updated on 3/3/2024
Martin AlvarezBy Martin Alvarez
Nutritionist/Dietitian Professional Guide
Learn More about Martin Alvarez

What are the options for you to eat or drink when intermittent fasting? It's certainly a question you are asking if you're new to the practice and want to ensure that your efforts have the desired impact.
Read this post first if you are entirely new to intermittent fasting; it contains all the information you need to start fasting. Then return to this page.

I want to start by saying that before you start intermittent fasting, you should first speak with a qualified medical professional. As it might not suit everyone, you should discuss it with a specialist first.

This post's objective is to present you with an overview of IF schedules; it is not to offer any legal or medical advice.

Intermittent Fasting Rules

zero calorie drink

zero calorie drink

There is just one rule for intermittent fasting, and that rule is that you cannot consume any foods or beverages that contain calories while you are fasting.

During the fast, you are permitted to consume black coffee, water, and other fluids with zero calories, but you are not permitted to consume any solid meals.

It is essential that you stick to your fasting time and do not consume any calories when you are fasting if your goal is to reduce the amount of body fat you currently have, when it's time to eat, prioritize eating meals that are high in nutrients.

Consume the same amount of calories throughout the rest of the day during your "eating period," but do it in a shorter length of time. This is your "eating period."

Intermittent Fasting Benefits

Intermittent Fasting

Intermittent Fasting

I dedicated a whole essay to discussing the advantages of intermittent fasting as well as the reasons why I believe it is an important health practice to embrace.

First and foremost:

  • Your body is able to begin essential cellular repair processes when you engage in intermittent fasting, which also alters hormone levels to make it easier to access fat that has been stored in the body (excellent for weight reduction!).
  • By cutting the amount of time spent eating into more manageable periods, the practice of intermittent fasting can assist with weight reduction. As a result, you will likely consume fewer calories throughout the day.
  • Fasting on an intermittent basis can help minimize insulin resistance and the likelihood of developing type 2 diabetes.
  • Researchers have shown that practicing intermittent fasting can have a beneficial effect on the body's inflammatory response.

Can You Drink Or Eat Anything When Fasting?

Intermittent Fasting

Intermittent Fasting

You are allowed to consume liquids during a fast; nevertheless, you are not permitted to take in any food. Because all solid foods include calories, consuming them will cause you to break your fast.

After I've been without food for 12 hours, I'll occasionally have a cup of bulletproof coffee to get me through the next four to five hours of my fast.

The Bulletproof coffee I drink does not include zero calories; however, studies prove that the health advantages exceed the fast, which is why I opt to continue the fast after the first 12 hours, even if it contains calories.

Even though it does include calories, drinking bulletproof coffee will not induce an insulin rise, and subsequent study demonstrates that your fasting will continue even if it does contain calories. Due to the fact that everybody is unique, this is something to try out.

What Can You Drink While Fasting?

zero calorie drink

zero calorie drink

You can have non-caloric beverages such as water, tea, drink tea with zero calories (although studies have indicated that some artificial sugars might induce insulin increases), and black coffee.

If you are having problems refraining from eating and need to make your fast last longer, I suggest drinking hot beverages since they tend to give people the impression that they are already full.

Is Drinking Allowed While Fasting?

While on a fast, you are prohibited from drinking alcoholic beverages.

Foods That You Can Eat During A Fast

zero calorie drink

zero calorie drink

Sorry to break the news, but you can't consume solid foods while fasting. To abstain from eating solid foods during a fast is the same thing.

After breaking your fast, you can consume food throughout the allotted time. Check out this list of the top meals to eat after breaking your fast.

What You Can Eat And Drink While Engaging In Intermittent Fasting Plus a Recipe For Bulletproof Coffee

Intermittent Fasting

Intermittent Fasting

The healthiest beverage to consume when engaging in an intermittent fast. The coffee I like the most!

Author: Laura Fuentes


  •  8–12 ounces of brewed liquid Coffee with Enhancement.
  • One teaspoon of brain octane or medium-chain triglyceride oil
  • One tablespoon of grass-fed, unsalted butter or ghee.


  1. Prepare one cup (eight to twelve ounces) of coffee by brewing it in a French press, coffee maker, or pour-over technique using filtered water.
  2. Coffee that has been brewed should be added to a blender. Put one spoonful of grass-fed butter and one tablespoon of Brain Octane or MCT Oil in the blender. Blend until smooth.
  3. Blend the coffee for twenty to thirty seconds or until it reaches the consistency of a foamy latte. Pour it into the cup of your choice, and savor it.