Intra-workout supplements are products you take while you train and provide many benefits including: rehydration, muscle glycogen replenishment, reduced muscle catabolism, an increase synthesis of protein, replacement of electrolytes and amino acids, improved muscle growth and a faster recovery. Intra workouts can further improve the intensity level of training by providing additional mental focus, drive and concentration During training your body loses essential amino acids, electrolytes and glycogen. Without these three key elements, the body does not have the energy for peak muscle response and protein synthesis. The result is that as you progress through your training session and continually shred your muscle fibers, the energy stored in your muscle tissue is depleted. The best way to replenish these vital stores of energy between sets is by using intra workout supplements.