The gut microbiota consists of trillions of microorganisms most of which are non-harmful and can provide benefits to the host, such as educating the immune system and supporting appropriate immune response. If the colonisation of gut microbiota is disrupted in early life it can lead to dysbiosis.

Several factors can cause this including maternal dysbiosis, cesarean section delivery, exposure to antibiotics, or premature delivery. Dysbiosis may adversely affect the gut and immune system development leading to increased susceptibility to disease later in life.

Optimal nutrition with biotics during the early life supports the development of a healthy well-functioning gut and immune system as well as supporting healthy growth.