The baby suckles both your breast and a little tube connected to a bottle of formula or expressed breast milk. The SNS can help a baby nurse more effectively by providing a ready flow of milk at the breast. You can get an SNS from Medela, Inc. Make sure a health care provider shows you how to use the SNS correctly. Incorrect use of the SNS can keep your baby from getting the right amount of milk.
Bottles are usually the fastest way to give a supplement to an underweight baby.
Once a baby has reached a healthy weight, one of the other, slower methods can be used. You should not try to use one of these other feeding methods unless a lactation consultant or a health care provider shows you how.