1) Cesarean birth is a risk factor for developing a less-than-optimal microbiome. (http://jn.nutrition.org/content/138/9/1796S.full http://jn.nutrition.org/cont

1) Cesarean birth is a risk factor for developing a less-than-optimal microbiome. (http://jn.nutrition.org/content/138/9/1796S.full http://jn.nutrition.org/content/138/9/1796S.full) 2) Prevalence of certain species in the microbiome is highly correlated with obesity. (http://go.nature.com/1sksCA6 http://go.nature.com/1sksCA6) "Our results indicate that the obese microbiome has an increased capacity to harvest energy from the diet."