There are many reasons why a mama may sometimes need to supplement her baby with expressed breast milk or formula.
While giving this little bit extra via a bottle is usually what we think of first, a  Supplemental Nursing System or SNS can be a super handy option for supplementing mamas who want to avoid nipple confusion and keep baby at the breast full time.
So, what IS an SNS and why might you need to use one? We spoke to Doula, Breastfeeding Counsellor and IBCLC-in-training Aimee Sing from BirthAims to get the lowdown.