Carbohydrate (CHO) is important as an exercise fuel. Having enough fuel to supply the body is essential to be able to perform optimally and combat fatigue or tiredness, which could lead to injuries. Sources of carbohydrates can be found from solids and liquids. In some cases, we need to have more than just plain water to help us exercise, concentrate or perform optimally. Sports drinks, sports gels or juices can help us achieve this.