For the first month after my son was born, he wasn’t gaining enough weight, and I needed to supplement with formula. I was also constantly pumping and trying to figure out when I should give him breast milk and when I should give him formula. I’d read somewhere online that I could mix it together in one bottle, but I didn’t know if I should do that, or just give him breast milk until I ran out and then give formula, or if I should give him formula at night to make him sleep longer, or what.
Here are the different ways that I tried supplementing with formula, along with the pros and cons that I found:
Option #1: Mix breast milk and formula together in one bottle
CON: If your baby doesn’t finish the bottle, it will have to be thrown out an hour after he starts drinking it. (Breast milk-only bottles can be kept for the next feeding; formula bottles must be discarded an hour after the feeding begins.) Throwing away breast milk – especially when you are supplementing – is painful!
Option #2: Start baby with a breast milk bottle and follow with a formula “chaser”
With this option, you give your baby all the milk that you have available for the feeding, and then offer him formula after the breast milk bottle if he is still hungry.
PRO: No throwing away breast milk! Also – if it is important to you to minimize formula – you are only giving your baby the amount of formula that you absolutely have to.
CON: You have to prepare and wash two bottles. Also, if your baby doesn’t like the taste of formula, he might refuse the second bottle and still be slightly hungry and cranky.
Option #3: Pick one or several feeds of the day to be formula feeds and only offer formula at that feeding
PRO: It’s much simpler – only one bottle to deal with and one liquid to prepare. And again, no throwing away breast milk.
CON: If your baby doesn’t like the taste of formula, it might be difficult to get him to take this feeding. However, it’s more likely that he’ll take it since he’ll be pretty hungry (versus option #2, where he’ll already have had some pumped milk).
I generally chose option #2 until I was able to get my supply up with fenugreek.
Because I am a bit lazy, I bought some of the nursettes that they gave me in the hospital and would give him those after a feeding when I ran out of breast milk. This worked great; it was lucky for me that he didn’t mind the taste, and I still only had to prep and deal with one bottle since the nursettes were all ready to go. The only downside with these is that they are a little expensive.