When to give baby water?

"I am writing to clarify when to give a baby water. I've read the information that you have but I'm still confused. My baby is 4-months-old and exclusively breastfed. The water in our town does contain fluoride. I do not plan to start solids (cereal) until 6 months of age. Do I start giving water at that time since he will be on solids? If so, how much? If not, when do I start? Is it okay to give him sips now at 4 months of age? Thank you!"

Water for infants? Older kids?

At this age, water is not necessary, but also not harmful. In other words: yes, it’s fine to give him sips. Starting solids doesn’t mean you have to start water, although it can help treat the constipation that might result from the solids. A common mistake that parents make is to give extra water on a hot day in lieu of breastmilk. This can lead to electrolyte imbalances in a young baby.

When the baby is older and starting to use a sippy cup, I prefer parents fill the cup with water, and not juice. Toddlers and older kids need to drink several cups of water each day – not several cups of juice. Kids get too much sugar as it is. A little juice is a nice treat, but I think it is important that when kids are thirsty, they ask for water – a healthy habit that will last a lifetime.

Dr. Jim