Virtue Clean Energy. Virtue. Virtue is the model of clean energy drinks. They have two products, each in two different flavours, and all of which are free from sugar, calories and chemicals. The The V8 +ENERGY Peach Mango Energy Drink is a perfect plant-based energy drink for people who want to avoid the artificial ingredients found in other energy drinks. It is a healthy and natural alternative to coffee. The energy drink is versatile and can be consumed at any time of the day to provide an energy boost. Caffeine is perhaps the most well known of the above. An 8.3 oz can of Red Bull energy drink has about 80 mg of caffeine per serving. A 16-oz can of Rockstar energy drink has about 160 mg. To give you a perspective, 1 oz of espresso has anywhere between 47 mg to 75 mg of caffeine. A 16 fl.oz can of Xyience contains 176mg of caffeine, which is quite moderate for an energy drink of its size unless you’re caffeine-sensitive. If you’re new to energy drinks, it’s best to start with energy drinks with lower caffeine content. One of the perks of Xyience is the wide variety of flavors it has, with all of them being fruit Ingredients of Monster Zero Ultra. Monster Energy Zero Ultra is unquestionably one of the most popular energy drinks on the market today. You can try this drink if you have acid reflux but can tolerate a little more caffeine. It contains 140 mg of caffeine per 16 oz. can and 100 mg of caffeine per 10.5 oz. can. Price – $2.10 per can (16 fl. oz) If 300 mg of caffeine is too much for you, here’s a 200 mg option by 3D Energy Drink. It’s also about 10 cents cheaper than Bang, depending on where you get it. 3D is also sugar-free but does contain 15 calories, something that might be important for you to consider. While it’s best to avoid most energy drinks you’ll find at the gas station or grocery store; these five are among the most popular and worst for your health: 1. 5-Hour Energy At 200 mg of caffeine in a bottle of fewer than two ounces, 5-Hour Energy contains significantly more caffeine per ounce than other energy drinks. B01lyAV.