1) Yes,gut microbiome plays a major role in a childs normal development.

2) Gut bacteria harvests energy from the nutrients & fuels the body.

3) Gut bacteria regulates the growth hormone thus influencing the physical growth of a child.

4) Gut bacteria controls the immune system thus protecting from the pathogens.

5) Gut bacteria helps with the brain development  through the gut brain axis.This is important for childs normal devvelopment.

Important rules for kids :

1) Thus diet is playing a major role for childs development. Gut bacteria regulates the growth hormone.

Rich nutritious food with gut bacteria helps child grow physically & mentally strong.

2) Malnutrition on the other hand affects the child both physically & mentally,making them weak.

3) Thus emphasis should be made while feeding the kids right from infancy towards including gut bacteria enrich foods.

4) Diet rich in providing good feed for gut bacteria should be opted for kids. 

5) Medications are found to have a negative impact on kids gut bacteria.

6) Administration of antibiotic should be followed by a proper food plan that will restore the gut bacteria.