Pure Carbohydrates
Carbohydrates (Carbs) are one of the three (3) macronutrients needed to sustain life. They are also the preferred energy substrate of your skeletal muscles. Except for fibre they provide 4 calories per gram.
Generally, most people consume adequate levels of carbs in their diet. However, athletes, people with a high metabolism (Ectomorph), individuals trying to gain muscle/weight or physically active people may need to supplement with carbs around training or in addition to meals.