Premature newborns with very low birthweight have extremely delicate digestive systems and represent 90% of NEC cases. While breastmilk evolves every second with a baby’s changing needs, imitation human milk can never compete. For example, human milk is 60% liquid for gentle digestion, compared with cow’s milk, which is 60% solid. The latter is denser and more apt to overload underdeveloped intestinal tracts, potentially impacting them with half-digested milk solids.
When formula sits undigested in the intestine, bacteria ferments, inflaming and killing (necrotizing) intestinal tissues, burning holes through the intestinal wall into the stomach cavity where worsening infection may spread to other organs or enter the bloodstream.