Drink this premium powder during training to help maximise your results. Gold Standard Train + Sustain is a comprehensive branched chain amino acid powder (BCAA) with added Wellmune®, rhodiola rosea, vitamin C and magnesium. The BCAAs - leucine, isoleucine and valine - are three essential amino acids popular in sports nutrition. Vitamin C helps to maintain immune health and reduce tiredness and fatigue, while magnesium supports muscle function. Gold Standard Train + Sustain has 5g of BCAAs and 250mg of Wellmune® per serving. Available in 5 great-tasting flavours, this lightly refreshing drink will help you to train and sustain! Drink this premium powder during training to help maximise your results. Gold Standard Train + Sustain is a comprehensive branched chain amino acid powder (BCAA) with added Wellmune®, rhodiola rosea, vitamin C and magnesium. The BCAAs - leucine, isoleucine and valine - are three essential amino acids popular in sports nutrition. Comprehensive BCAA powder. 5g of BCAAs per serving. 250mg of Wellmune® per serve. Added vitamin C to maintain immune health and reduce tiredness and fatigue. Added magnesium to help maintain normal muscle function. Available in 5 great tasting flavours. Available in 266g tub equivalent to 28 serves. Informed Choice certified Vitamin C also helps to maintain immune health and reduce tiredness and fatigue, while magnesium supports muscle function. Gold Standard Train + Sustain has 5g of BCAAs and 250mg of Wellmune® per serving. Available in 5 great-tasting flavours, this lightly refreshing drink will help you to train and sustain! BCAA Train + Sustain from Optimum is the new Gold Standard in intra-workout drinks.