The 10 Best Sugar-Free Energy Drinks of 2021

The Best Sugar-Free Energy Drinks

The energy drink market is huge these days. Unfortunately, the biggest names in that market are loaded with stimulants, caffeine, and sugar. Sure they’ll give you an energy jolt but that buzz will come at the cost of your health. The good news is that there are some excellent healthy sugar-free energy drinks out there. Finding them is the problem. That’s why we have put together this master list of the 10 best sugar-free energy drinks on the current market.

The best sugar-free energy drink currently on the market is the Pureboost Clean Energy Drink which comes in a box that contains 30 convenient tear – and – go packets that are mixed with water. Each serving will provide you with between 4 and 6 hours of pure energy.

This antioxidant energy drink is completely sugar and sucralose free and contains Vitamin B12 and natural green tea, minerals, electrolytes, herbs, and amino acids. This is a great tasting, completely natural energy booster that comes in at a sharp price point. 

The 5 Best Selling Sugar Free Energy drinks:

Bestseller No. 1
Rockstar Pure Zero Energy Drink, Fruit Punch, 0 Sugar, with Caffeine and Taurine, 16oz Cans (12...
5,390 Reviews
SaleBestseller No. 2
Monster Energy Zero Ultra, Sugar Free Energy Drink, 16 Ounce (Pack of 24)
43,773 Reviews
Monster Energy Zero Ultra, Sugar Free Energy Drink, 16 Ounce (Pack of 24)
  • FULL FLAVOR, ZERO SUGAR: Zero Ultra has 10 calories and zero sugar, but with all the flavor you’re...
  • REFRESHING TASTE: Zero Ultra’s lighter tasting flavor profile is a less sweet, sparkling, citrus energy...
  • UNLEASH THE ULTRA BEAST: Some people are impossible to please. As soon as they get what they thought they...
Bestseller No. 3
Amazon Brand - Solimo Silver Energy Drink, Sugar Free, 16 Fluid Ounce (Pack of 24)
3,008 Reviews
Amazon Brand - Solimo Silver Energy Drink, Sugar Free, 16 Fluid Ounce (Pack of 24)
  • Twenty four 16-fluid ounce cans of Silver Energy Drink
  • Zero sugar and just 10 calories per serving
  • Lightly carbonated, sugar free energy drink containing caffeine, B vitamins, niacin, ginseng, guarana and...
Bestseller No. 4
Rockstar Sugar Free Energy Drink, 16oz Cans (12 Pack) (Packaging May Vary)
10,193 Reviews
Rockstar Sugar Free Energy Drink, 16oz Cans (12 Pack) (Packaging May Vary)
  • 12 (16 fl oz) cans of Rockstar Energy Drink
  • Sugar Free
Bestseller No. 5
C4 Smart Energy Sugar Free Energy Drink 16oz (Pack of 12) - (New) Black Cherry - Performance Fuel &...
505 Reviews
C4 Smart Energy Sugar Free Energy Drink 16oz (Pack of 12) - (New) Black Cherry - Performance Fuel &...
  • Energy to overachieve - Formulated with 200mg of InnovaTea naturally derived caffeine produced from tea...
  • Increase mental & cognitive performance - Formulated with Cognizing, a clinically studied form of...
  • Sugar-free beverage for men & women - Zero sugar, Zero calories, and zero carbs In every delicious...

The 10 Best Energy Drinks of 2020:

We have done the research for you so that you can spend more time benefiting from your energy drinks as opposed to searching high and low for the right energy drink for you. Here are the top 10 best sugar-free energy drinks currently on the market:

1. Pureboost Clean Energy Drink

 Pure Boost Clean Energy Drink

Pureboost Clean Energy Drink provides a clean, natural energy source that is powered by Vitamin B12 and natural green tea caffeine. It also provides you with a range of immune-boosting vitamins and immune acids including Turmeric, Ginger, Vitamin C, and Zinc. This product is also packed with antioxidants. Each serving of Pure Boost provides you with the equivalent amount of antioxidants as you would find in 16 cups of broccoli. 

Pureboost contains some powerful hydrating electrolytes in the form of 950 mg of potassium and 100 mg of magnesium. This product is available in three refreshing flavors.

2. Solimo Silver Energy Drink

Solimo Silver Energy Drink

Solimo Silver Energy Drink is an Amazon own brand that has become extremely popular among people who are looking for a healthy sugar-free energy drink. It makes use of erythritol as its sugar substitute. Each can provides you with just 10 grams of calories. It is lightly carbonated and contains 152 mg of caffeine per serve, along with B vitamins, niacin, ginseng, guarana, and taurine. 

Solimo Silver Energy Drink is sold in a 24 pack with each can containing 16 oz. The price works out to $0.07 per fluid ounce, making this a very affordable sugar free energy drink. 

3. VPX Bang Sugar-Free Energy Drink

VPX Bang Sugar-Free Energy Drink

VPX Sugar-Free Energy Drink is marketed as a potent brain and body fuel. Its sugar-free ingredients include 300 mg of caffeine, which is right up there at the upper limit. It also provides you with the super amino acids CoQ10 and Super Creatine. There are zero calories and no carbs in this tasty drink, which is packaged in a 16-oz can. 

VPX Bang is available in a huge range of awesome flavors including Birthday Cake, Cotton Candy, and Power Punch. 

4. Red Bull Sugar-Free Energy Drink

Red Bull Sugar-Free Energy Drink

Red Bull Sugar-Free Energy Drink provides you with a healthy version of arguably the world’s most popular energy drink. The key ingredients in this product are Carbonated Water, Citric Acid, Taurine, Sodium Citrate, Magnesium Carbonate, Caffeine, Acesulfame K, Aspartame, Inositol, and Niacinamide. Each 8.4 fluid ounce can of Red Bull Sugar-Free contains just 5 calories. 

Red Bull Sugar-Free Energy Drink is sold in a 24 pack. Each can provide you with 84 mg of caffeine, which is a little low to provide an appreciable effect. The sugar substitute used in this product is aspartame, which has been linked to some health problems. 

5. Monster Energy Sugar-Free

Monster Energy Sugar-Free

MonsterSugar-Freee Energy Drink is a healthier version of the hugely popular Monster energy brand. It claims to provide you with all of the flavors of the original Monster energy drink but without the sugar content. That may be the case but the sugar substitutes that are used in this product are not as healthy as we would have liked to have seen. Rather than using stevia or erythritol, Monster relies upon acesulfame K and aspartame, both of which have been linked to potential health problems.

Because of the relatively high level of caffeine in Monster Sugar-Free Energy drink, we suggest that you limit yourself to one can per day. 

6. Reign Total Body Fuel

Reign Total Body Fuel

Reign Total Body Fuel is a sugar-free energy booster that provides you with a potent blend of 300 mg of caffeine, along with CoQ10 and electrolytes. There are only 10 calories in this drink and it is completely free of artificial colorings and flavors. You also get 1000 mg of the three branch chain amino acids to help fuel your muscle growth. It is available in a range of tasty flavors and is sold in 24 packs of 16 fl. oz cans.

Reign Total Body Fuel is shelf-stable but tastes better when refrigerated. 

Celsius Fitness Drink is marketed as a pre-workout energy drink that is completely sugar-free. It contains healthy doses of such proven energy boosters as green tea extract, guarana seed extract, and ginger root as well as a range of vitamins and minerals. It is available in both a sparkling and nonsparkling version and comes in a range of pretty incredible flavors. 

Celsius Fitness Drink uses sucralose as its sugar alternative. Though not as good for you as stevia or erythritol, it is a decent substitute and there are only 0.10 grams of sucralose per serve. 

8. Cellucor C4 Original Sugar-Free Energy Drink

C4 Original Sugar-Free Energy Drink

C4 Original Sugar-Free Energy Drink comes from the biggest selling pre-workout manufacturer in the USA. Each can contains zero sugar and 00 mg of caffeine. It also contains CarnoSyn Beta-Alanine to offset workout fatigue and help with your post-training recovery. There are no artificial colors or dyes, zero carbs, and no calories in this drink. This is a natural source of hydration and energy that comes in some delicious flavors. 

9. Kona Gold Sugar-Free Hemp Energy Drink

Kona Gold Sugar-Free Hemp Energy Drink

Kona Gold Sugar-Free Hemp Energy Drink is a hemp-infused energy booster that is blended with organic hemp protein. Each serving contains 114 mg of caffeine. The combination of unique ingredients provides you with a potent crash-free way to get the clean energy that your body deserves. There are absolutely no artificial sweeteners in this drink. Each serving comes as a 12 fluid ounce can. 

10. Zevia Zero Calorie Sugar-Free Energy Drink

Zevia Zero Calorie Sugar-Free Energy Drink

Zevia Zero Calorie Sugar-Freee Energy Drink is a zero-calorie, sugar-free, and carb-free clean source of energy that tastes great. This is a carbonated drink that is flavored by stevia extract to provide you with a natural alternative to sugar. It also contains caffeine, citric acid, and tartaric acid. The 120 mg of caffeine in each serve of Zevia is made from green coffee beans. Because it is completely sugar-free, Zevia Zero Calorie Sugar-Free Energy Drink makes a suitable beverage for use with a keto lifestyle. 

 These 12 oz cans are available in four tasty flavors and are sold as a 12 pack. 

Buyer’s Guide

Wading through the energy drink market to find healthy sugar free options is no easy task. Here are 6 things to look out for when you go shopping for a sugar-free energy drink. 

Check the Sugar Substitute

Sugar is added to an energy drink to enhance the taste. When  it is removed, something has to be used to replace it. But not all sugar substitutes are equal. Some of them, like sucralose, aspartame, and acesulfame potassium has been associated with health problems. For instance, studies on rats have linked sucralose with a heightened risk of cancer. It also spikes insulin levels in the same way that sugar does. 

The two best completely natural sugar substitutes are stevia and erythritol. These are sugar alcohols that are abstained from fruits and vegetables.

Check the Caffeine Content

Most energy drinks will include some amount of caffeine. That’s hardly surprising when you consider that caffeine is the world’s most popular stimulant. But you need to regulate the amount of caffeine that is in your sugar-free energy drink. If it is more than 300 mg per serve, you are likely to get a buzzy reaction that will lead to an energy crash.

And if your energy drink contains 100 mg or less of caffeine, then it won’t be powerful enough to have much of an effect. Look for a sugar-free energy drink that provides you with between 100 and 300 mg of caffeine. 


Transparency means that the sugar-free energy brand that you buy should spell out on the label how much of each ingredient is in the product. This will allow you to check that quantity against clinically recommended dosages to see whether the product is with buying. Be wary of sugar-free energy drinks that hide their dosages behind a proprietary blend.


It doesn’t matter how healthy a sugar-free energy drink is, if you don’t like the taste of it you won’t drink it. Of course, the taste is subjective but most people agree on what tastes great and what doesn’t. Check online reviews to see what other people think of the taste of the sugar-free energy drink you are considering. Double-check that the taste is not enhanced by artificial flavors or colors. 


The sweet spot for a good sugar-free energy drink appears to be around $2.50. Less than that and you’re getting a bargain, more than that and it is getting a little pricey. Many sugar-free energy drinks can be purchased in 12 or 24 packs, which will bring the unit price down. 


Energy drinks come in a range of sizes. The ideal size for a single-serve seems to be 12 oz. 

Popular Sugar Free Energy Drinks FAQS:

Are Sugar-Free Energy Drinks Good For You?

Yes, sugar-free energy drinks are good for you, provided that the sugar substitute used is healthy and the product does not contain any other artificial ingredients. The best natural sweeteners are stevia and erythritol. 

Be sure that you do not overdo your consumption of sugar-free energy drinks. Doing so may provide you with an excess of stimulants such as caffeine. If, for example, the energy drink contains 250 mg of caffeine and you have two of them a day, then you are getting 500 mg per day.

We advise not exceeding 400 mg of caffeine per day to avoid the jitters and a subsequent energy crash. As a result, we suggest sticking to just one energy drink per day. 

Do You Still Gain Weight From Sugar-Free Energy Drinks?

You can gain weight with sugar-free energy drinks, depending on what the rest of your diet looks like. However, a sugar-free energy drink will not, in itself, cause you to gain weight.

To avoid weight gain, make sure that the total number of calories that you consume each day is less than the total number of calories that you burn each day. This will result in a total daily caloric deficit. Your body will have to burn off stored body fat to meet the extra energy need. 

Do Sugar-Free Energy Drinks Spike Insulin?

Whether a sugar-free energy drink spikes insulin depends on what the sugar replacement is. The best way to avoid an insulin spike is to stick to products that contain stevia and erythritol.


You owe it to your body to be drinking sugar-free energy drinks that will give you the boost you need without all of the negative side effects that come with the sugar-filled big brands. The best sugar-free energy drink on the market right now is Pure Boost Clean Energy Drink, which is sold as a box that contains 30 convenient tear and go packets and is powered by natural green tea caffeine along with Turmeric, Ginger, Vitamin C, and Zinc. 

This article was last updated on October 19, 2021 .

By Steve Theunissen

Steve is a former gym owner, personal trainer, and 20-year veteran of the fitness writing industry. Steve has written for websites such as Hardcore Muscle, Fitness, Carblite, and Men's Health and has been a fitness expert columnist for 2 international magazines.