The researchers evaluated 90 children raised in the slums of Dhaka, Bangladesh. They followed the children from birth to age two to track the association between SIBO and stunted growth. Though the families were given access to medical care and nutritional counseling, and the children were vaccinated, the number of children with stunting nearly tripled during the first year of their lives, from 10 percent to 28 percent. Using a breath test, the researchers found that about 17 percent of children in the cohort had SIBO. Children living near a sewer were much more likely to have SIBO. In the slum environment, even the kids that didn’t have SIBO had some degree of intestinal stress, the researchers suspect.