Firstly there is no harm is giving your baby distilled (boiled) water from birth. That is to say, it won’t harm them physically.

However it is important to know that they do not need plain water to supplement their diet or replenish their water supplies because they already get plenty of fluid from their milk formula or, when breastfeeding, the foremilk.

As you little baby is so tiny their stomach is also tiny and it will only take a few ounces of solid\liquid to fill that baby up. A baby should be filled with nutritients when possible and not nutrient free water.

The only time you should really start to give your baby water is when they start teething as they will benefit from the flouride. Just an oucne or two a day would be enough.