Key benefits Provides the eight essential amino acids for protein synthesis that your body MUST get from dietary sources It is the most effective protein supplement for building muscle and bone Promotes fast recovery after hard training Increases energy levels Supports a healthy immune system Is an excellent source of protein during weight loss with virtually zero calories Amino Acids are the building blocks of protein. Many people know that protein is essential for optimum health, but most assume they consume enough protein from the food they eat. So why the need for an amino acid supplement? The simple answer is that – yes, you do get good quality from foods such as eggs, meat, fish, and nuts, but much of the protein in food is not converted into body protein.