Have a lot to do and can't afford a letdown? Then try 5-Hour Energy. It keeps you going strong for hours and helps you power through you day without adding on extra calories or making you feel full. 5-Hour Energy is packed with B-vitamins, amino acids and other nutrients. It has zero sugar, only four calories and as much caffeine as a cup of the leading premium coffee. The 2-ounce shot takes seconds to drink and in minutes you’re feeling the way you want to feel – bright, alert and ready to go that extra mile.