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Understanding Infant Stomach Size and Feeding Needs


Firstly, it's important to know that a newborn's stomach is quite small, roughly the size of a cherry or marble. As your baby grows, their stomach will also expand, but it's important to remember that it's still relatively small in the first few weeks of life. This means that they will need to eat frequently, often every 2-3 hours.

When it comes to the amount of milk or formula that your baby needs, there are some general guidelines to follow. In the first few days of life, your baby may only need a small amount of colostrum, which is highly concentrated and nutrient-rich. After a few days, your baby will likely be eating around 1-2 ounces of milk or formula per feeding.

Photo taken from Sleeperific blog post relating to sleep schedules and an infant


It's important to pay attention to your baby's cues and not solely rely on a strict feeding schedule. Your baby will let you know when they are hungry, and you should feed them on demand. Over time, you'll start to recognize the signs that your baby is hungry, such as rooting, sucking on their hands, or making sucking noises. It's also important to ensure that your baby is getting enough milk or formula. Signs that your baby may not be getting enough include infrequent wet or dirty diapers, lethargy, or a lack of weight gain. If you're concerned that your baby isn't getting enough, speak with your pediatrician.


In conclusion, understanding your infant's stomach size and feeding needs is crucial for their health and well-being. Feeding frequently and on-demand, paying attention to your baby's cues, and monitoring their weight gain and diaper output are all important factors to consider. With patience and attention, you can ensure that your baby is getting the nutrition they need to thrive.


Disclaimer: The information provided on this website is intended for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your healthcare provider with any questions you may have regarding a medical condition. Additionally, the views and opinions expressed on this website are solely those of the original authors and other contributors. These views and opinions do not necessarily represent those of Momentous Doula Care.