Mixed feeding (Breastmilk and Formula)

What is mixed feeding?

Mixed feeding means you give your baby both breastmilk and formula. 

Some parents choose mixed feeding. Other times, a health professional may suggest it for medical reasons. 

Most babies do not need both formula and breast milk to feel full. Breast milk gives your baby all the nutrition they need. If breast milk is not available for your baby, baby formula is the only other safe option for your baby. 

Before using formula, check for signs that your baby is getting enough milk.  If you are worried, talk to your child and family health nurse (CFHN) or family doctor. Remember, breastfeeding is a special way to bond with your baby and give them the best nutrition.

Reasons you may use mixed feeding: 

You might use mixed feeding if: 

• breastfeeding is hard or painful

• your breast milk supply is low

• your baby is not gaining enough weight

• you need medicine that is not safe for breastfeeding

• you are returning to work or need flexibility 

If you do not have enough breast milk for each feeding, it is recommended to use a baby formula that is cow's milk-based or donor breast milk, unless your doctor tells you to do something different.

How to give mixed feeds 

There are different methods you can use to give your baby extra milk. For example, cup feeding, syringe feeding, or bottle feeding. 

A health professional can help you decide what method to use based on:

• your baby’s age 
• safety for you and your baby
• cost
• how long you plan to mixed feed 
• your feeding goals 

Ask your health professional how much milk to give your baby. Everyone’s situation is different.

In the early days of your baby’s life, when mixed feeding is expected to be short-term only, cup feeding is recommended if you have support to do it safely.

Read more to learn about how to make more breastmilk

Get help and support 

More information

Cup and supplement feeding: https://www.breastfeeding.asn.au/bfinfo/cup-feeding

Using a supply line | Australian Breastfeeding Association

Donor breast milk: Donor breast milk and milk banks | Pregnancy Birth and Baby (pregnancybirthbaby.org.au)