The gut is also known as the “second brain",” and for good reason! Our gut microbiome consists of trillions of bacteria that regulate much of our hormone production, mood, sleep, energy levels, skin conditions, immune system, atopic conditions and so much more. The gut microbiome plays a vital role in our physiological and psychological health via its own neural network called the enteric nervous system (ENS), a system of nerves found in the lining of our gut. It arises from the same tissues as our central nervous system (CNS) during fetal development, so it has many structural and chemical parallels to the brain, thereby forming the “gut-brain connection.”