In Canada, 3,500 kids and their families are part of the CHILD Cohort Study, which is a large research project that is figuring out how the human microbiome influences allergies, asthma, obesity, and our everyday health and wellbeing, especially during childhood.

Find out in the next video, produced by AllerGen NCE Inc., how the gut microbiota can be altered by many factors, including the way a baby is born (C-section or vaginal delivery); what a baby is fed (breast milk or formula); and whether a baby is exposed to antibiotics or furry pets.