The gut of poultry houses a complex and dynamic ecosystem called the microbiota. This ecosystem maintains a symbiotic relationship with the host. In healthy animals, the microbiota is involved in nutrient digestion, as well as in the prevention of infection by potential pathogens and maintenance of good health: a real super-hero! Decades of scientific research and poultry trials indicate that probiotics, with their beneficial effect on the host microbiota balance and function is a valuable asset to this superpower!