Does Pre-Workout Break A Fast? [Intermittent Fasting FAQ]

Does pre-workout break a fast? Can you take pre-workout while fasting? In this article, we will answer all of your questions about pre-workout and fasting.

Does pre-workout break a fast?

If you enjoy fasted workouts, you may be curious about taking pre-workout while you fast. There’s nothing quite like working out after taking pre-workout. But will pre-workout break my fast? Keep reading to get all the information you need!

Does Pre-Workout Break A Fast?

Yes, pre-workout will break your fast. Pre-workout contains artificial ingredients and artificial sweeteners – both will spike your insulin levels and break your fast.

Does Pre-Workout Break A Fast – Further Details

Yes, most pre-workout supplements will break your fast. Most pre-workout supplements contain added ingredients and sweeteners that will spike your insulin levels and remove you from a fasted state.

However, it does depend on the pre-workout. It is possible that you may find a pre-workout supplement or pill that would not break your fast. If it contained super clean ingredients and no additives, there’s a chance that it could keep you in a fasted state.

To stay on the safe side, so that you can get all the benefits of fasting, we recommend that you avoid consuming any pre-workout supplements while fasting. If you love pre-workout, consume it during your eating window.

This article is all about does preworkout break your fast.

Does Zero Calorie Pre-Workout Break A Fast?

Does 0 calorie pre-workout break a fast? Yes, even zero-calorie pre-workout drinks will break a fast. Unfortunately, these types of pre-workouts still contain artificial flavoring and sweeteners that will remove you from a fasted state.

What Is Pre-Workout?

Pre-workouts supplements are energy-boosting supplements designed to enhance energy levels, workout performance, and recovery. These supplements, available as pills or powder, often contain a mix of ingredients like caffeine, creatine, amino acids, and vitamins.

Research suggests that pre-workouts can improve focus, reduce fatigue, increase strength, and promote lean body mass. They’re like your workout buddies, giving you that extra push to make the most of your gym time!

What Can You Use Instead Of Pre-Workout While Intermittent Fasting?

If you still want a boost while you are doing fasted workouts, here are a few ideas:


Coffee is the perfect, natural pre-workout option. You can drink it black or add a pinch of salt to it if coffee is a little bitter for you. Best of all, with coffee, you don’t have to worry about any added chemicals or flavoring like many pre-workouts.

Another very natural, trendy pre-workout is consuming honey and salt. While this is a powerful, natural combination, it is a combination that can only be consumed during your eating window. To learn more, read about the honey and salt pre-workout trend.

Green Tea Or Matcha

Green tea is lower in caffeine than coffee, but it can still provide a nice boost if you are sensitive to caffeine. When making your tea, make sure you mix it with water and not milk.

If you want to drink your normal pre-workout, we recommend consuming it during your eating window. For additional information, check out our guide on the best clean pre-workout options.

This article is all about intermittent fasting pre-workout.

What Can I Consume While Fasting?

If you are following a clean fast, you can consume the following items when fasting:

  • Water (unflavored, no added fruit)
  • Black coffee
  • Plain green tea or black tea
  • Mineral water, unflavored sparkling water, seltzer water (with no added ingredients)
  • Salt, electrolytes, or minerals (unflavored, no additives)
  • Medications as prescribed by your doctor
clean fast

Additional Fasting Resources

Here are some other frequently asked fasting questions that may help you out!

Frequently Asked Questions

Does drinking pre-workout break a fast?

Yes, drinking pre-workout will break a fast. Pre-workout will spike your insulin levels and therefore break your fast.