The process of switching from breastfeeding to formula is different for everyone -- some babies adjust to formula without any issues, while others have a harder time with the change. To minimize difficulties, make the switch from breastfeeding to formula as gradual as possible. This not only gives the baby time to adjust, but may also prevent your engorgement and reduce the risk of a breast infection. Call your doctor or lactation consultant if you have any specific questions about weaning.
Step 1
Ask your doctor which type of formula to use. Many doctors recommend a formula that is based on cow's milk and enriched with iron, but your pediatrician may recommend another kind based on the specific needs of your infant.
Step 2
Prepare the formula as directed on the package. Ready-to-feed formulas do not require preparation, but you will need to mix liquid and powder formulas with water. Prepared bottles of formula can be kept in the refrigerator for up to 24 hours.
Step 3
Offer your baby formula instead of breast milk at his least favorite feeding first. For example, if your infant doesn't usually eat very much during his mid-afternoon feeding, this is the time when you should offer him formula instead of your breast. Continue to offer your baby formula instead of breast milk at this feeding for the next three to seven days, depending on how long you want the weaning process to last.
Step 4
Substitute another nursing session with formula. Continue again to offer your baby formula instead of breast milk at this feeding for three to seven days.
Step 5
Express a little milk by gently squeezing your breasts with your hands when you feel engorged. Only express enough to make you feel comfortable. Expressing too much encourages your body to keep producing milk.
Step 6
Continue substituting breastfeeding with formula until the baby is getting all of the feedings from formula.
Tips and Warnings
- You may notice a change in the color or consistency of your baby's stool when you switch from breastfeeding to formula. Weaning a baby from breastfeeding can be an emotional process. If you are feeling sad about the loss of intimacy between you and your child, find other nurturing activities to use as a replacement. Cuddling together while reading a story or singing soft lullabies to your baby are just a few examples of activities that may help you and your baby maintain that special bond.
- Some babies are allergic to formula. Stop giving formula and call a doctor if your baby has diarrhea, forceful vomiting, red or scaly skin, weakness or extreme fatigue after consuming formula.


