Which Monster Drink is Sugar-Free? A Guide to Zero-Sugar Monsters

January 8, 2026 •

3 min read

Over 78 million energy drinks are consumed annually in the United States, and with growing health consciousness, the demand for sugar-free options is at an all-time high. Monster Energy, a market leader, offers a variety of products specifically designed for those who want the energy boost without the sugar and calories.

Quick Summary

Monster's sugar-free options primarily fall under its Ultra and Zero Sugar product lines. These ranges offer diverse flavors, from refreshing citrus and berry blends to tropical fruit profiles, all without the added sugar found in the original version.

Key Points

Ultra and Zero Sugar Lines: Monster's primary sugar-free options are found within its Ultra and Zero Sugar collections, offering a wide array of flavors.
Diverse Ultra Flavors: The Ultra series includes options like Ultra Zero, Ultra Peachy Keen, and Ultra Paradise, providing lighter, fruit-flavored choices.
Classic Zero Sugar Taste: The Monster Zero Sugar line offers the iconic taste of the original green Monster, but without the added sugar.
Rehab Considerations: Some Rehab Tea + Energy flavors are low in sugar, but not all are zero-sugar; consumers should check individual labels.
High Caffeine Content: Despite being sugar-free, these drinks still contain high amounts of caffeine and should be consumed in moderation.
Check Labels for Sugar: Always read the nutritional information, especially with the Rehab series, as sugar content can differ between flavors.

Understanding Monster's Sugar-Free Collections

For consumers looking to cut sugar without sacrificing the energy kick, Monster Energy provides several product lines that fit the bill. The most prominent of these are the Monster Ultra and Monster Zero Sugar series, which boast a variety of flavors and a familiar energy blend.

The Monster Ultra Series

The Ultra series is Monster's most extensive line of zero-sugar, low-calorie beverages. Each flavor offers a unique, often fruit-inspired, taste profile and a signature 'Monster' kick. These drinks are known for their lighter, crisper flavors compared to the heavier taste of the original green Monster. With 10 calories and zero grams of sugar per can, they are a popular choice for health-conscious consumers looking for a daily energy boost.

Some of the most popular Ultra flavors include:

Ultra Zero (aka 'The White Monster'): A refreshing, crisp citrus flavor.
Ultra Peachy Keen: A juicy peach flavor reminiscent of summer.
Ultra Watermelon: A sweet and juicy watermelon taste.
Ultra Paradise: An island-inspired flavor with a mix of kiwi, lime, and cucumber.
Ultra Fiesta Mango: A tropical mango flavor that packs a punch.
Ultra Rosá: A bright and sweet floral and berry flavor.

The Monster Zero Sugar Series

This line is a direct answer to fan requests for a sugar-free version of the Original Green Monster. Monster Zero Sugar captures the classic sweet and salty flavor of the original but without any of the sugar or calories. It is the ideal choice for purists who want the iconic Monster taste in a healthier format.

Monster Rehab Tea + Energy

While the Ultra and Zero Sugar lines are purely energy drinks, the Rehab series offers a non-carbonated tea and energy blend. Many Rehab flavors are lower in calories and sugar than the classic Monster, but not all are completely sugar-free. The specific flavor to look for is the Rehab Monster Tea + Lemonade, which is explicitly marketed for its low-calorie content. Always check the nutritional information for each specific Rehab flavor, as their sugar content can vary.

Comparison of Monster's Sugar-Free Options


Feature	Monster Ultra	Monster Zero Sugar	Monster Rehab Tea + Energy	Original Monster Energy
Flavor Profile	Diverse, lighter, and fruit-forward flavors.	Sweet and salty, mimicking the original green Monster.	Non-carbonated tea and juice blends.	Classic sweet and salty taste.
Sugar Content	Zero grams per can.	Zero grams per can.	Varies by flavor; some are low-sugar, not zero.	54 grams of sugar per 16oz can.
Calories	10 calories per can.	10 calories per can.	25 calories per can (Tea + Lemonade).	210 calories per 16oz can.
Carbonation	Yes, lightly carbonated.	Yes, carbonated.	No, non-carbonated.	Yes, carbonated.
Function	Energy boost with zero sugar.	Classic energy boost with zero sugar.	Refresh, recover, revive with added electrolytes.	Traditional energy boost.

Are Sugar-Free Energy Drinks Better for You?

Switching to a sugar-free energy drink can help reduce your overall sugar intake, which is associated with better weight management and a lower risk of type 2 diabetes. However, it is important to remember that these drinks still contain high levels of caffeine and other stimulants. For example, a 16oz can of Monster Ultra contains 150mg of caffeine, while Monster Zero Sugar contains 158mg. Moderation is key, and responsible consumption is always advised.

While sugar-free energy drinks offer a lower-calorie alternative, they are not a substitute for a healthy diet and lifestyle. They should be consumed responsibly, and it's always recommended to consult a healthcare professional for personalized advice, especially if you have pre-existing health conditions related to caffeine sensitivity or other ingredients. For more information, the Monster Energy website provides detailed nutritional information for all its products.

Conclusion

For those seeking a sugar-free Monster, the choice is clear: the Monster Ultra and Monster Zero Sugar lines are the primary options, with the Ultra series providing the most variety in flavor. The Zero Sugar line offers a healthier take on the iconic original flavor. Always be mindful of the high caffeine content in these beverages and consume them in moderation as part of a balanced diet and active lifestyle.

Frequently Asked Questions

Yes, Monster has multiple zero-sugar options. The primary ones are the entire Monster Ultra series and the specific Monster Zero Sugar flavor, which is a sugar-free version of the original.

Monster Ultra White, or Zero Ultra, has a lighter, crisper, and less sweet taste than the original. Its flavor profile is often described as a refreshing and sparkling citrus.

Most sugar-free Monster Ultra and Monster Zero Sugar drinks contain only 10 calories per can. The non-carbonated Rehab Tea + Lemonade is also low-calorie, with 25 calories per can.

Monster Zero Sugar is a low-calorie, zero-sugar version designed to taste as close to the original green Monster as possible. It mimics the classic sweet and salty flavor profile but without the sugar and calories.

Yes, every flavor within the Monster Ultra product line is sugar-free. The Ultra series is specifically marketed for its zero-sugar, low-calorie formula.

Not all Monster Rehab drinks are sugar-free. While the Rehab Tea + Lemonade is low in calories (25 per can), it's important to check the nutritional label of other Rehab flavors for their specific sugar content.

Beyond Ultra White, popular sugar-free Monster flavors include Ultra Peachy Keen, Ultra Watermelon, Ultra Paradise, Ultra Fiesta Mango, and Ultra Rosá.