We recommend PhD BCAA on training days for any athlete looking to protect and repair their physique PhD Nutrition BCAA's, the exciting first product in the brand new "Recovery range" have been designed to the specific 2:1:1 ratio required to optimise the effects of Leucine, the most important of the three BCAA's. Muscle protein synthesis (muscle growth and production) PhD BCAA's are vital to protein synthesis (the ability to build muscle) and also vital in reducing muscle damage. Vitally, when we workout strenuously with weights, we oxidise amino acids (use them to fuel our training). BCAA oxidisation is rapidly promoted by exercise, so when we train hard, we use BCAA's. If we do not replace or keep topping these BCAA's up before, during and after exercise, we run the risk of increasing muscle damage indicators Creatine Kinease (CK) and lactate dehydrogenase (LDH) and missing the opportunity of recovering in the optimum time. Slow recovery means slow progression, fast recovery equals faster progression, it's a simple equation. Managing workout muscular stress and recovery One of the reasons athletes fail to increase lean muscle size is down to their inability to manage workout stress and recovery. Studies show that intense training increases the presence of muscle damage indicators (CK and LDH). With high plasma concentrations of CK and LDH, we cannot recover quickly and effectively (if we can't recover, we can't build muscle, get quicker, stronger or more powerful). BCAA supplementation before and after exercise has beneficial effects for decreasing exercise-induced muscle damage and promoting muscle-protein synthesis; this suggests the possibility that BCAAs are a useful supplement in relation to exercise and sports. (2) Directions for use: PhD BCAA usage recommendations for athletes of differing body weights: Use PhD BCAA's on training days only.