Combination feeding is far more common than many of us realize. Having worked with hundreds of mothers over the years, I've seen that the vast majority of babies receive formula at some point. This is simply the reality of feeding for many families, myself included. The formula itself isn't an issue; rather, it's the lack of guidance on how to balance formula with your breast milk.
My goal is to help you feed your baby with confidence in whatever way works best for your family. How we feed our babies is deeply personal. It doesn't need to be an argument of "breast versus formula," but rather an opportunity to expand our view of feeding, responding to your baby's needs, connecting, and nurturing them.
What is combo feeding? Combination feeding simply means feeding a baby both breast milk and formula. The ratio of milk to formula doesn't matter, if your baby receives both, they are combo-fed. Combination feeding doesn't have to be a long-term plan, it might last for just a few weeks in the beginning or be introduced later on.
Why choose combo feeding? There are many reasons to offer both breast milk and formula, ranging from additional nutritional needs to supply challenges. No matter the reason, as long as your baby is nourished and we are protecting your milk supply, that is a success in my book.
How to manage combination feeding
First, we need to protect your milk supply by removing milk at least 8 times every 24 hours. If your baby is transferring milk efficiently at the breast, this can be done through nursing. If pumping is your primary method, rely on that. Even when your baby takes a bottle of formula, regular milk removal ensures your body knows to continue producing. When milk remains in the breasts, supply downregulates; consistent nursing or pumping prevents this and helps build your supply.
If you are nursing and topping off with formula at every feeding, offer the breast first. Removing milk at the breast requires more effort from babies, so it helps to catch them when they are hungry and energetic, but not yet overly distressed. If your baby is crying and struggling to latch, offer the bottle for a minute or two to soothe them before trying the breast again.
A routine of nursing followed by a formula top-off generally involves latching every 2–3 hours, immediately followed by a bottle of formula, with no pumping needed. (Note that your baby must be transferring milk effectively for this routine alone to protect your supply.)
Alternating feedings throughout the day is another common approach for newborns. In this setup, you might nurse for most feedings during the day and offer formula to fill in gaps, such as overnight so you can get extra rest, or at specific times during the day when milk supply is lower (like evenings).
If you are nursing, pumping, and offering formula, you may be practicing the hell affectionately known as "Triple Feeding." This method is intensive and should ideally be a short-term strategy undertaken with the support of an IBCLC (International Board Certified Lactation Consultant). Triple feeding requires tremendous dedication, and while demanding, many parents navigate it successfully with proper support.
Triple feeding typically involves nursing on both sides, pumping, and then offering a bottle of formula or expressed milk. Because of the time commitment involved, hands-on support is essential to make this routine manageable.
Protecting your supply during combination feeding operates on a demand-and-supply dynamic: milk removal signals your body to produce more. As a general guideline, whenever your baby feeds, milk should be removed. Aiming for at least 8 milk removals in 24 hours will help maintain your supply, whether spaced evenly or adapted to your baby's feeding cues or your schedule.
How do I know if my baby is getting enough? There are a few ways we measure baby’s intake, the easiest at home being diaper counts. We want to see 1 wet/dirty diaper for each day of life until day 5. So 1 of each on day 1, 2 of each on day 2, etc. Once at day 5 this should maintain at 5 wet and 5 dirty diapers a day. Alongside the diapers, we watch your baby’s weight, they should be steadily gaining weight alongside their growth curve, maintaining their percentile.
No matter how you feed your baby, I hope you take it as an opportunity to give yourself grace and connect with that little baby staring up at you. & never forget, your village is here.