Best Energy Drinks for Intermittent Fasting (Questions)

Intermittent fasting is pretty common nowadays since it’s a great way to lose weight and reduce your daily calorie intake.

Fasting is a good way of maintaining a healthy lifestyle and controlling your food intake. When fasting, you have a small eating window that helps you in limiting your food intake, which causes a calorie deficit or losing those extra pounds.

Although you can’t each much when fasting, there are plenty of drinks that you can consume while fasting, which can help you in staying hydrated.

If you’re wondering, what are energy drinks that you can drink while fasting, then continue reading this article.

Let’s start.

What Can You Drink When Fasting?

Although you can’t eat or drink anything during fasting to avoid consuming calories. But there are a few drinks you consume while fasting, which can help you in staying hydrated.

Here’s a list of a few drinks to drink during fasting:


Water is the best beverage that you can drink during fast, as it doesn’t contain any calories and it can reduce your thirst as well.


Coffee is great for boosting your metabolism, which can help you lose weight fast. You can have coffee without milk, sugar, and cream during a fast.


Tea is also a great beverage to drink during fasting. It can make you feel full and prevent you from feeling hungry. Apart from that, tea can improve your gut health and make intermittent fasting more effective.

Can You Consume Sugar When Fasting?

You can’t consume sugar when fasting since sugar will increase your blood sugar levels and your calories intake, which will break your fast.

That being said, sugar isn’t healthy whether you’re fasting or not. You should always keep your sugar intake in moderation since consuming sugar leads to some serious medical issues in the long run.

Apart from that, you might end up gaining weight if you consume an excessive amount of sugar. Also, you might experience sugar crashes and low energy when you consume a lot of sugar at once.

Remember to monitor your sugar intake and avoid consuming too much sugar in your diet.

Are Energy Drinks Safe on Empty Stomach?

It’s not a good idea to drink energy drinks on an empty stomach. Energy drinks contain strong ingredients, which can be difficult to digest on an empty stomach. That’s why your stomach needs something to protect it.

Keep in mind that it’s not healthy to consume energy drinks on an empty stomach and the same goes for if you’re fasting or haven’t eaten anything.

Benefits of Energy Drinks While Intermittent Fasting

When fasting, you need something to keep you hydrated and energetic. Since you won’t be eating anything throughout the day, you need something that would give you the energy to function. And energy drinks are great for that purpose.

Energy drinks can give you a sufficient amount of energy to get you through a hard day. Drinking a can of energy drink during fasting can make you alert and attentive and can reduce your fatigue and tiredness.

Energy drinks can have other health benefits as well that can help you while fasting, such as:

  • Preventing weight gain
  • Increasing alertness
  • Improving sports performance
  • Boosting long-term memory

Drinking energy drinks while fasting can help you in losing some extra weight since you won’t be hungry throughout the day and you would get enough energy to stay active all day, which will burn a good amount of calories.

However, despite these benefits, you shouldn’t go overboard with energy drinks and should consume them in a controlled amount.

Health benefits of intermittent fasting

Side Effects of Energy Drinks

Energy drinks are safe to consume and don’t have any side effects, only if you drink them responsibly. Drinking a sugar-free energy drink with low calories reduces the risk of all the potential side effects that an energy drink can cause.

Avoid excessive consumption of energy drinks to prevent the following side effects:

Things to Consider in Energy Drinks


Calories are the first and most important factor that you should consider when deciding which energy drink you should drink while fasting.

In context, a woman should have up to 2000 calories in a day, while a man should have around 2500 calories in a day.

You shouldn’t consume calories when fasting, so it’s best to go for energy drinks with zero calories since they won’t increase your daily calorie intake and won’t have any effect on your fast as well.

If you drink an energy drink with high amounts of calories, that ruins your fast and leads to weight gain as well in the long run. So it’s better to check the calorie content of the energy drink before drinking it.


Caffeine is the most important and primary ingredient of an energy drink. Caffeine is used in almost every energy drink. Though the amount of caffeine present in the drink varies from brand to brand.

If you want to drink energy drinks while fasting, then you should consider the caffeine content of the drinks. Consuming an energy drink with a good amount of caffeine can help you in staying energetic during your fast.

However, if you’re someone with low caffeine tolerance, then you should go for an energy drink with moderate amounts of caffeine since drinking an energy drink with high caffeine tolerance might not be suitable for you.

Caffeine is great for increasing your energy and reducing your fatigue. Apart from that, caffeine has the following health benefits:

  • Boosts energy
  • Increases focus
  • Lowers the risk of type 2 diabetes
  • Improves reaction time
  • Improves memory
  • Enhances physical and mental performance
  • Decreases mental fatigue

Despite these benefits, you should still consider the caffeine content of the drink and consume it according to your tolerance level. According to FDA, a person with no medical condition has up to 400mg of caffeine in a day. Consuming more than that leads to some serious health issues, such as:

  • Insomnia
  • Anxiety
  • Dehydration
  • Dizziness
  • Restlessness
  • Headache
  • High blood pressure
  • Rapid heart rate


Sugar is another important factor that you should consider before drinking an energy drink when fasting. For your reference, the American Health Association (AHA) recommends that a woman’s sugar intake shouldn’t be more than 24g in a day, and a man’s sugar intake shouldn’t be more than 36g in a day.

While fasting, you shouldn’t consume sugar since it increases your calorie intake, which ruins your fast. Moreover, consuming sugar is not healthy as well. Consuming high amounts of sugar results in the following health problems:

  • Diabetes
  • Tooth cavities
  • Acne
  • Wrinkles
  • Skin aging
  • Increases risk of cancer
  • Increase risk of heart disease
  • Low energy
  • Depression

It’s best to go for sugar-free energy drinks since sugar-free energy drinks won’t add any extra calories to your daily calorie intake. Apart from that, consuming sugar-free energy drinks also helps you in controlling your sugar intake, which has the following benefits:

  • Higher energy levels
  • Better sleep
  • Boosts immune system
  • Improved gut health
  • Better skin
  • Weight loss

Best Energy Drinks for Intermittent Fasting

Here are a few energy drinks that you can drink while fasting.

Reign Energy

Reign Energy is a sugar-free energy drink with only 10 calories per serving. It’s a strong energy drink with 300mg of caffeine which is a lot of caffeine to consume at once.

Apart from that, Reign energy also contains some other ingredients which are great for health. It contains BCAAs, B vitamins and other energy-boosting ingredients. All of these ingredients are combined to improve your muscles and overall health.

The caffeine content of Reign energy is pretty high and suitable only for people who have high caffeine tolerance and fast caffeine metabolism. If you’re someone with low caffeine tolerance, then Reign energy is not the ideal energy drink for you.

Cans of Reign Energy

Bang Energy

Bang energy is a very strong energy drink with 300mg of caffeine. If you’re someone who’s into strong energy drinks and handles this much caffeine, then Bang energy is a good option for you.

Moreover, if you’re planning to drink Bang energy then keep a track of your caffeine intake since the caffeine content of Bang energy is quite close to the recommended maximum intake of caffeine. If you don’t drink Bang energy responsibly, it may lead to some severe health issues.

Apart from caffeine, Bang energy also contains creatine, which makes Bang energy different from all other energy drinks in the market. Creatine is great for your muscles and can be beneficial for you if you’re into heaving lifting and workouts.

Various Flavors of Bang Energy
Bang Energy Drink

XS Energy Drink

XS energy is another great energy drink with no added sugar. It has 80mg of caffeine, which is a moderate amount of caffeine. However, XS energy does contain 10 calories in each serving.

The calories content of XS energy isn’t that high and won’t cause a significant impact on your fast. It won’t cause any weight gain if you consume it in a controlled amount and will give a good boost of energy as well.

XS energy also comes in two caffeine-free flavors as well which is a plus for people who are sensitive to caffeine and don’t like to consume caffeine in their diet. The two caffeine-free flavours of XS energy are:

  • Mango Pineapple Guava (caffeine-free)
  • Cranberry-Grape Blast (caffeine-free)

C4 Energy Drink

C4 energy drinks is a popular energy drink that comes in 4 different versions, that are:

  • C4 Original
  • C4 Smart Energy
  • C4 Ultimate
  • C4 Natural Zero

All four versions are completely sugar-free and contains zero calories. These versions contain different amounts of caffeine. Their caffeine ranges from 150mg to 300mg depending on the version you are going for.

You can choose the version according to your needs and caffeine tolerance. If you’re someone with low caffeine tolerance, then you should go for the 150mg version of C4 energy.

However, if you’re someone with high caffeine tolerance and need a higher dose of caffeine to get your desired result, then you should go for the version which contains 300mg of caffeine.

Cans of C4 Energy Drink
C4 Energy Drink

Aspire Energy Drink

Aspire energy drinks is a healthy energy drink since they contain all the natural ingredients. It’s a sugar-free energy drink that has zero calories and 80mg of caffeine.

This energy drink is a great beverage to drink while fasting since it won’t add any extra calories to your daily calorie intake. Also, it has enough amounts of caffeine which will keep you energetic during fasting.

Apart from caffeine, Aspire energy also contains different B-vitamins which are beneficial for your health. B-vitamins are great for providing energy to your body and maintaining the proper functions of your organs.

If you’re planning to do intermittent fasting, then you should be mindful of what you are consuming during your fast and what beverages you drink during fasting.

A Can of Aspire Energy
Aspire Energy Drink

The Final Verdict

It’s best to go for sugar-free energy drinks with no calories when fasting, since they won’t increase your blood sugar levels and your daily calorie intake. Moreover, zero-calorie sugar-free energy drinks won’t affect your weight as well and will help you in maintaining your fast.

I wouldn’t recommend you to go for a high-calorie energy drink since it would break you fast by increasing your daily calorie intake. So if you want to maintain a healthy lifestyle and want to shed those extra pounds, then go for a low-calorie sugar-free energy drink.

Whatever energy drink you go for, remember to drink in moderation. Excessive consumption of energy drinks can have some serious adverse effects.

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