From Spit-up to Soup: The Surprising Contents of a Baby’s Bib


A baby’s bib is one of the most essential items in any new parent’s arsenal. It’s not just a fashion statement or a cute accessory – it serves a practical purpose. Infants are messy eaters, and a bib is used to protect their clothing from food spills, dribbles, and spit-ups. The contents of a baby’s bib can be surprising and provide insight into the nutritional composition of what the baby is consuming.

Spit-Up: The Inevitable First Food

Spit-up, also known as posseting, is a common occurrence in most infants. It refers to the movement of the stomach contents up the esophagus and out of the mouth. Spit-up typically consists of a mixture of milk, stomach acid, and saliva. Although it can be unsettling for new parents to witness, spit-up is a normal part of a baby’s digestive system. It usually occurs after a feed, and some babies spit up more frequently than others.

Formula and Breastmilk

Infants typically consume either formula or breastmilk until they are ready to start eating solid foods. Formula is a powdered or liquid substitute for breastmilk, while breastmilk is the natural milk produced by a mother. Formula and breastmilk have different nutritional compositions, but both are vital for a baby’s growth and development. Spit-up formed from formula and breastmilk often differs in consistency and color.

Introducing Solid Foods

The American Academy of Pediatrics (AAP) recommends starting solid foods at around 6 months of age. At this point, infants can sit up and show an interest in food. As babies get older, they gradually transition from purees to chunkier foods. Solid food residue on bibs can vary in composition depending on what is being fed.

Soup: The End Game

Eventually, as babies grow, they start consuming more complex foods and are able to eat what their parents are eating. Some babies are ready to move to blended soups as early as 8 months. By the time babies are eating soups, the contents of their bibs start to look like a miniature version of what their parents are eating.


Baby bibs play an essential role in protecting babies’ clothing from food spills, dribbles, and spit-ups. However, as we’ve seen, the contents of a baby’s bib can also provide insight into what the baby is consuming. The versatile nature of bibs means that they are useful when feeding infants different types of foods. From spit-up to soup, baby bibs are a valuable tool in a new parent’s toolbox.