Open gut is a well-known myth which states that a new born’s small intestines have gaps between its cells that allow substances to pass directly into the bloodstream.
The lining of the small intestine of infants until six months is not able to distinguish between solid food and bacteria.
These gaps are assumed to be so large that can allow large food particles to directly pass into the bloodstream.
The direct flow of food in the bloodstream can harm infants.
Though this myth is very popular online, no scientific evidence claims that babies have an open gut up to six months of age.