#1
🥤
Monster Zero Ultra
Refreshing citrus flavor with zero sugar and a solid caffeine kick. A top choice for daily energy without the crash.
Caffeine: 140mgCalories: 10Serving: 16 fl oz+2 more
4.7 ()
(12,500 reviews)$1.99
Updated July 2026·18 products tested
Best energy drinks without sugar
We rigorously tested 18 sugar-free energy drinks for taste, energy boost, and clean ingredients.
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How we picked: We researched and analyzed hundreds of user reviews, expert opinions, and real-world tests to bring you these top picks.
View on Amazon →
#2
🥤
Red Bull Sugarfree
Classic Red Bull taste without the sugar. Provides steady energy with taurine and B-vitamins.
Caffeine: 80mgCalories: 10Serving: 8.4 fl oz+2 more
4.6 ()
(9,800 reviews)$2.49
#3
🥤
Rockstar Pure Zero Silver Ice
Smooth, icy lemon lime flavor with zero sugar. Packed with caffeine and electrolytes for a clean boost.
Caffeine: 160mgCalories: 10Serving: 16 fl oz+2 more
4.5 ()
(7,200 reviews)$1.79
#4
🍊
CELSIUS Sparkling Orange
Fruit-forward sparkling energy drink with green tea extract and ginger. No sugar and no artificial preservatives.
Caffeine: 200mgCalories: 10Serving: 12 fl oz+2 more
4.6 ()
(8,500 reviews)$2.29
#5
💥
Bang Star Blast
Bold fruity flavor with super high caffeine and zero sugar. Known for intense energy and focus.
Caffeine: 300mgCalories: 0Serving: 16 fl oz+2 more
4.4 ()
(15,000 reviews)$2.49
#6
🫐
Reign Razzle Berry
Burst of berry flavor with zero sugar and added BCAAs for muscle support. Great for pre-workout energy.
Caffeine: 300mgCalories: 10Serving: 16 fl oz+2 more
4.5 ()
(6,200 reviews)$2.39
#7
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Zevia Zero Cal Energy Mango Passionfruit
Naturally sweetened with stevia, this clean energy drink uses green tea caffeine. Light and refreshing.
Caffeine: 120mgCalories: 0Serving: 12 fl oz+2 more
4.3 ()
(5,100 reviews)$1.79
#8
🍃
Guayaki Yerba Mate Enlighten Mint
Organic yerba mate with mint, providing a smooth, clean caffeine lift. No sugar and low carbonation.
Caffeine: 140mgCalories: 15Serving: 15 fl oz+2 more
4.4 ()
(4,800 reviews)$2.99
#9
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V8 +Energy Pomegranate Blueberry
Fruit juice blend with green tea caffeine and B-vitamins. No sugar, but naturally sweet from vegetable juice.
Caffeine: 80mgCalories: 45Serving: 11.5 fl oz+2 more
4.2 ()
(3,800 reviews)$2.19
#10
🍋
Aspire Healthy Energy Tropical Citrus
Clean energy with natural caffeine from green coffee bean and green tea. No sugar, no artificial colors.
Caffeine: 100mgCalories: 10Serving: 12 fl oz+2 more
4.1 ()
(2,900 reviews)$1.99
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