The position of the World Health Organization (WHO) on this issue is completely unambiguous: a baby in the first months of life should not be given any food or drink (even water) other than breastmilk [1]. However, in real life, there are different situations.
Why is WHO against infant supplementation?
The main argument of WHO is sterility. Bacteria cannot colonize milk if it flows directly from the mother's breast into the baby's mouth. In contrast, the water used to mix supplements may not be sterile. As a result, supplementing increases the risk of intestinal problems in babies [2]. Furthermore, WHO is concerned that if mama replaces some of her breastfeeding with bottle feeding, she would produce less milk.
Can I feed my baby water that I am confident is pure?
Yes, but you don't have to. Breastmilk contains 80% water, hence, breastfeeding meets all of the baby's hydration needs [2].
How will you know if your child is dehydrated?
If the baby has sufficient milk, they will need five or six diapers each day. If your baby isn't peeing as much as you think they should, speak with your lactation consultant or pediatrician [3].
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