Chicken essence is traditionally consumed by the ill persons, pregnant and lactating women. It is also the most popular protein supplementation used by athletes. It contains protein, amino acids and peptides. Carnosine and anserine are functional dipeptides that maintain the acid-base balance, anti-oxidation and immunity. Besides, amino acids have positive effects of muscle building, anti-fatigue and immune modulation. Chicken essence may act as an ergogenic aid for sport nutrition research.