Does a Posset Mean my Baby is Full?


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As a newborn digestion expert I’m frequently asked questions on baby possets, throw ups, gas and digestive issues. I thought I’d share a few posset questions with you.. 

Does a posset mean my baby is full? 

A posset is not an indication your baby being full, in fact a baby can posset every time they burp on as little as 30mls.  For some babies possets happen closer to the end of a feed with a higher level of gas with milk easily thrown back.  Some newborns posset constantly ( thank God for muslin squares! ) and others not at all. 

If my baby possets, does it mean he has burped?⁣

I’m afraid not, if you haven’t heard a burp then it’s unlikely to have come up.  A posset is thrown back with or without burping. 

Did You Know ?

Burping your baby effectively can reduce the amount of throw up or posset, as can the frequency of feeds and a gas free diet when breastfeeding. 

Some babies will posset or regurgitate constantly throughout the day, others not at all and some only while they are being winded during feeds. 

⁣What’s a normal size posset? 

A posset is small amount of milk from a dribble up to around 15mls  - a common symptom of a immature gut and liquid diet.  A proper throw up or projectile vomit/ sicking up is in excess of 30ml. 

There are a number of reasons for a large throw up, such as wind/ gas, feeding too fast, sleepy feeding, reflux.  Newborns and babies throw up easily without distress ( unless it comes out of the nose ) so 

it’s unlikely the vomiting is due your newborn being ill.  My advice is to re- feed the milk lost when this happens especially when feeding on a routine. 

Full help and guidance investigating your baby’s digestion head over to my Consultancy page. 

Cute baby next to a copy of the 7pm to 7am Sleeping Baby Routine Book

For a complete guide to newborn digestion grab a copy of my book 7pm to 7am Sleeping Baby Routine.

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Charmian About The Author

About the Author

I’m Charmian,

The Baby & Toddler Sleep Expert and founder of The Sleeping Baby Routine Consultancy.
With over 30 years of experience as a baby and toddler sleep consultant, I’ve supported thousands of families with newborn sleep, toddler sleep, feeding, lactation, digestion, weaning, routines and toddler behaviour. My approach is holistic, gentle and responsive, focusing on feeding, digestion, structured routines and positive sleep associations to help babies and toddlers develop healthy sleep habits that truly last. All support is tailored to your child’s age, development and individual needs, while following safe sleep recommendations and promoting age appropriate sleep practices.

I offer personalised and flexible support for families across London, throughout the UK and internationally through consultations, remote support, home visits and newborn home stays.