Just one 8.4 oz serving of Red Bull energy drink contains more than 26 g of sugar and 75 mg of caffeine, notes the USDA, and even the sugar-free version has 75 mg of caffeine. Best Energy Drink For Runners: Kaged Hydra-Charge® Amped. Best Low-Calorie Energy Drink: Transparent Labs LEAN. Best Zero Sugar Energy Drink: Cellucor C4® Energy Carbonated. It can be very overwhelming to sift through all the marketing hype and "proprietary" formulations to find potent energy drinks with clean ingredients. G-Fuel energy drink powder is another great option for sugar-free energy drinks. An assortment of G Fuel flavors. G-Fuel Energy is also an e-sports drink that contains only 140 to 150 mg of caffeine depending on the flavor and has low calories compared to other energy drink powders. Moreover, just like the other two energy drinks, this is also 7 Brew Energy Drinks are designed to give you a quick and effective energy boost. They contain caffeine, taurine, and other ingredients that can help improve focus and mental clarity. This can be especially helpful when you need to stay alert and focused during a long day. Sugar-free Available. The best sugar-free energy drink powders are Rogue Energy, Zipfizz Energy, G-Fuel Energy, and Ghost Gamer. These energy drinks are packed with caffeine, calories, and artificial sweeteners, so you’re fully energized, boosted, and with an enjoyable drink in hand. Beyond all this goodness, it’s still important to read the nutritional label Caffe D’Vita Sugar Free Mocha Cappuccino. Java House Cold Brew Coffee On Tap. Starbucks Tripleshot Energy Extra Strength Espresso Coffee Beverage, Vanilla, Zero Sugar. Maxwell House International Decaf Sugar-Free French Vanilla Instant Coffee. Maxwell House Sugar Free Naturally Decaffeinated Suisse Mocha Coffee Drink Mix. 1. Free shipping, arrives in 3+ days. $ 2499. Alani Nu Sugar Free Energy Drinks 12 ounce Cans 6 Flavor Variety Pack, 6 Cans. Free shipping, arrives in 3+ days. $ 3950. Alani Nu Sugar-Free Energy Drink, Pre-Workout Performance, Fruit Blast Variety Pack, 12 oz Cans (Pack of 12) Free shipping, arrives in 3+ days. $ 2995. Learn what makes an energy drink sugar-free, how many you can drink a day, and what to look for in a sugar-free energy drink. Find out the top 10 sugar-free energy drinks with caffeine, calories, and ingredients. Compare the benefits and drawbacks of each drink. 4Iy9.