Hours of Energy Now- No Crash Later Sugar Free 4 Calories B-Vitamins Amino Acids Zero Sugar Feel it in Minutes Lasts for Hours Dietary Supplement KosherWhat"s in 5-hour Energy? The key ingredients in 5-hour Energy are also available in every day foods – like broccoli, avocados, bananas and apples – or already in you. It contains zero sugar, four calories and as much caffeine as a cup of the leading premium coffee.Original 5-hour Energy was introduced in 2004. Light, portable and effective, 5-hour Energy shots quickly became the no nonsense way for working adults to stay bright and alert. It’s packed with B-vitamins and amino acids. It has zero sugar, zero herbal stimulants and four calories.