The Energy Gel + Caffeine is a gel with a clever 2:1-ratio between glucose and fructose. Glucose (also known as dextrose) is the most important source of fuel for the body. The ratio has to be just right. With normal nutrition you can convert a maximum of around 60 gram of sugar to energy per hour. With a 2:1-ratio between glucose and fructose the conversion rate can increase to 90 grams. Your body will have more energy available for exercise. Specific about this Energy Gel + Caffeine is the addition of caffeine, the same amount as in a cup of coffee. Athletes usually take this gel during a training session or race/game or just before finishing. The caffeine gives an energy boost.