Final answer:
The stools of a formula-fed infant are typically tan or yellowish, firmer, and have a stronger odor compared to breastfed infants. After clearing meconium, which is the initial sterile, tarry stool passed, the introduction of formula shapes stool characteristics signifying the start of beneficial bacterial colonization in the gut.
Step-by-step explanation:
The stools of an infant who is formula-fed are generally known to differ somewhat from the stools of a breastfed infant. Initially, all newborns pass meconium, a tarry, greenish-black substance that is made up of materials ingested in utero. After the meconium is expelled, the typical characteristics of a formula-fed infant's stools will transition. Normally, these stools tend to be tan or yellowish in color, firmer in consistency, and less seedy compared to a breastfed infant's stools. Formula-fed stools also typically have a stronger, more pungent odor, which is a result of the different protein source in formula compared to breast milk.
As the infant's digestive system matures, the formula fed baby's stools may become more formed and consistent in appearance. It's also worth noting that the introduction of formula or breast milk to an infant's diet initiates the colonization of the gut with beneficial bacteria, contrasting with the sterile environment of the womb where meconium is first developed. Monitoring the characteristics of an infant's stools can be an important aspect of gauging digestive health and identifying potential intolerances or allergies.
The consistency, color, and odor of an infant's stool are guidelines for normalcy; however, variations can occur, and pediatric consultation is recommended if there are concerns about an infant's digestive health or stool patterns.