5 Signs Of Overfeeding A Baby, Causes And Steps To Prevent It

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Overfeeding a baby is fairly uncommon, although possible. Babies self-regulate feeding and give cues when they are hungry or full, and you need to spot and decipher these signs or cues to know when to stop feeding. However, sometimes, you might miss these signals and continue feeding the baby, leading to overfeeding.

Is missing the cues the only reason parents overfeed their babies, or could there be other reasons as well? Read on as we tell you the common causes of overfeeding a baby, the peculiar signs that the baby is being overfed, complications of overfeeding, and tips to prevent overfeeding your baby.

What Causes Overfeeding In Babies?

Things that lead to overfeeding in babies include:

  1. Feeding milk or formula through bottle: According to the American Academy of Pediatrics (AAP), formula-fed infants are at a higher risk of overfeeding because formula milk is usually fed through bottles (1). Bottles allow a free flow of milk, so the baby keeps getting a constant drip of milk even when they are full. A baby can overfeed on cow milk (if they are older than one year) and breast milk in other cases (2). Breast fed babies are usually not overfed.

Aubrey Phelps, MS, RDN, CLC, and author of the “Big book of baby-led weaning” explains, “Babies like to suck. When breastfeeding, babies can do what’s known as “non-nutritive sucking,” which means sucking without actually pulling any milk out. Essentially, using the nipple like a pacifier.

“But, with a bottle, that’s not an option. If they suck, they will get some milk, whether they want it or not. So babies may continue sucking or seem “hungry” because they want to suck more. If formula comes with that, then they’ll accept it.”

  1. A large feeding bottle: A study noted that infants fed from larger feeding bottles are often overfed and thus tend to become overweight. Encouraging the child to finish the entire bottle, regardless of its size, can lead to overfeeding and eventually obesity.
  1. Coaxing the baby to feed: Babies give you cues when they are full. Some signs include not sucking at the bottle nipple or turning away from the nipple. Some parents may coax the child to feed by putting the nipple in their mouth repeatedly, forcefully overfeeding them.

“Parents may keep offering the bottle to try to “get” the baby to finish it simply because they can see there’s still formula left and feel like the baby “needs” to get it all. When breastfeeding, you have no actual idea how much baby is getting unless you’re always doing weighted feeds,” adds Phelps.

  1. Using the bottle as a pacifier: Parents may use the bottle as a means to calm down the baby every time they throw a tantrum, thereby giving them more food than they need. To avoid that, use a pacifier instead of a bottle to calm down a cranky baby.
  1. Introducing solids early: It is best to give solids to a baby after the age of four months. According to the experts at Stanford Children’s Health, starting solid foods sooner can make the baby eat more than their body needs, which is nothing but overfeeding (3).

Dr. Taylor Arnold, a pediatric nutrition expert says, “ Mixing formula incorrectly (too much powder to water) can be one cause of overfeeding baby.

Sometimes parents may overfeed their baby and not be aware of it. It is, thus, vital to know about the signs of overfeeding the baby.

Quick fact
You usually cannot overfeed a breastfed baby. Also your baby will not become spoiled if you feed them on demand (11).

What Are The Signs Of Overfeeding A Baby?

Overfeeding a baby can result in repeated spitting

Image: Shutterstock

An overfed baby will display the following signs:

  1. Repeated spitting: Babies spit up in general, but may do so more frequently when they are overfed (4).

“While it may look like a lot, spit-up is usually only a small portion of the total feed. Feed again only if the baby is showing hunger cues like rooting, attempting to latch, tightly clenched fist, and fussing,” clarifies Dr. Arnold.

  1. Bloating and gas: Drinking from the bottle can cause the baby to gulp a lot of air. It can make the baby’s stomach bloated and cause discomfort.
  2. More colic than usual: All the bloating, gas and frequent passing of loose stools will create a lot of discomfort for the little one, which will lead to a colicky baby.
  3. Demand for more than 32oz (1064ml) of formula/breast milk a day: Even babies who are a year old do not require more than 30oz (887ml) of formula milk or breast milk in a day (5). A little over 30oz may not be abnormal but according to the American Academy of Pediatrics (AAP), a baby demanding more than 32oz (1064ml) of formula or breast milk in a day is unusual and should be checked by a doctor (6) (7).These are the usual signs of overfeeding, which are evident during each feed. Ignoring them can lead to certain complications.

What Are The Complications Of Overfeeding A Baby?

Chronic overfeeding may lead to obesity

Image: Shutterstock

Chronic overfeeding can lead to:

  1. Overweight and obesity: Since babies constantly get surplus food, they also get excess calories that accumulate within the body and cause abnormal weight gain.
  1. Makes acid reflux worse: If the baby has acid reflux or gastroesophageal reflux disease (GERD), then overfeeding can make the condition worse. Babies with GERD will display deterioration of symptoms when they begin to overfeed.
  1. Vomiting: Overfed babies may vomit after a feed. Chronic vomiting may leave little food for the stomach to digest, thus leading to health problems in the long run.

How To Prevent Overfeeding In Babies?

The chance of overfeeding is less when you breastfeed the baby

Image: iStock

You may take the below steps to prevent overfeeding:

  1. Breastfeed: Pediatricians state that the chances of overfeeding are little when you breastfeed the baby (8). Even if the baby holds on to the nipple long after the feed, they will not get a constant supply of milk as they do from the bottle. The baby gets breast milk only when they suckle, which makes overfeeding almost impossible in such cases (9).
  1. Try paced bottle feeding: Paced bottle feeding is a method of controlling the flow of milk from the bottle. It requires the baby to suck at the nipple just like they would on a breast nipple. Paced bottle feeding tries to mimic breastfeeding and is an excellent means to prevent overfeeding in infants (10).
  1. Maintain a feeding schedule: Maintain a feeding schedule, and the baby will adjust to it eventually. The baby then gets hungry at the same time each day and should be fed on time to avoid feeding more than usual between long intervals.
  1. Wait for the hunger cues: Look for signs of hunger like sucking at the fingers or moving their lips when touched gently. A baby who is hungry will latch on the nipple right away. Feed them only when they are hungry.
  1. Do not force the baby to eat: If the baby is full, then do not force them to feed more. Or you will end up overfeeding them.
Quick tip
A hungry baby usually has their fists closed. Relaxed and open fists after a feed usually indicate that the baby is full (13).

Overfeeding a baby usually happens when you miss their signals to stop feeding. Using a large feeding bottle or coaxing a baby to feed can also cause overfeeding them. The habit may lead to spitting, bloating, and colic in some babies. Regular overfeeding can even cause obesity, acid reflux, and other health issues. Therefore, it is important to watch the baby’s signs when hungry or full to maintain a proper feeding schedule.

Infographic: Prevent Overfeeding

Check the factors that could be causing you to overfeed a baby. If you’ve been resorting to bottle-feeding to calm your baby, our infographic below includes the alternative method to soothe them. We have also included some general tips to calm them and manage the complications caused by overfeeding.

preventing the complication of overfeeding [infographic]
Illustration: MomJunction Design Team


MomJunction's articles are written after analyzing the research works of expert authors and institutions. Our references consist of resources established by authorities in their respective fields. You can learn more about the authenticity of the information we present in our editorial policy.
1. C. T. Wood, A.C. Skinner, S. Yin, et.al; Bottle Size and Weight Gain in Formula-Fed Infants; American Academy Of Pediatrics (2016)
2. Spitting Up – Reflux; Seattle Children’s Hospital
3. Feeding Guide for the First Year; Stanford Children’s Health
4. Overfeeding a Baby; St. Lukes
5. Feeding Guide for the First Year; Johns Hopkins Hospital
6. Bottle Feeding Basics; American Academy Of Pediatrics (2012)
7. Amount and Schedule of Formula Feedings; American Academy Of Pediatrics (2018)
8. Infant and Toddler Nutrition; Centers for Disease Control and Prevention
9. 6 ways to help keep your baby at a healthy weight; Harvard Health Publishing (2017)
10. Paced Bottle Feeding; University of Michigan Health System
11. Your breastfeeding questions answered; National Health Services, UK
12. Is my baby getting enough milk?; La Leche league international


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