EAA Energy is an amino acid drink that is low in sugar and packed with 10g of essential amino acids, and 100mg of caffeine to increase alertness and focus. Keep on top of your game or support an active lifestyle with new EAA Energy from premium sports nutrition brand Optimum Nutrition. EAA Energy is an amino acid drink that is low in sugar and packed with 10g of essential amino acids, and 100mg of caffeine to increase alertness and focus. It comes in two delicious flavours - Mojito and Pear - and can be used anytime throughout the day, helping give you the focus and energy to meet the challenges of each day. 10g of EAAs per serving. 100mg of caffeine. Caffeine enhances alertness and focus. Available in two great flavours; mojito and pear Premium energy drink packed with amino acids from Optimum Nutrition to give you energy and focus each and every day