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Water can actually be very dangerous for babies. Babies can survive on breast milk and/or formula alone for the first 6 months without needing any supplemental food or water.

Breast milk and formula both provide all of the hydration that a baby needs. Adding water to this can lead to serious side effects.

– Your baby can fill up on water, lowering her breast milk/formula intake. This would lower the calories and nutrients that your baby is consuming and be very serious to her health.

– Too much water can also lead to a serious condition called water intoxication. Water intoxication can lead to a drastic change in sodium levels in the body which can cause seizures, brain damage, and even death.

Here are a few rules to keep in mind:

– Babies under 2 months of age should not be given any water.

– Babies 3-4 months of age can be given a few sips of water (after they’ve consumed breast milk/or formula). This way they are not filling up on water, but can experiment with sippy cups and tasting the flavor.

We started giving Caroline a straw sippy cup at 3 months of age, and she took right to it. So glad we started at this age getting her comfortable with the cup!

– Babies 4-6 months of age should be given no more than 2-4 oz of water in a 24 hour period.

– Babies on solid food can be given a glass of water with their meals. This will help them get used to the flavor and the act of drinking from a sippy cup.

My rule (and our doctor agreed), was that babies can be given no more ounces than their age in months. (Example: if baby is 7 months old, they should not exceed 7 ounces of water per day).

Again, water should only be given once baby is full on breastmilk/formula/solids).

-Once they reach toddlerhood at 1 year, their water consumption can increase! From 1-3 years of age, their fluid intake should be about 44 ounces.

About 20% of this will come from foods that contain moisture (fruits, vegetables, soup, etc). The rest should come from milk and plain water.

Other Posts of Interest:

Tips for Quick Sunscreen Application
Snacking with Baby On The Go

When and How to Give Solid Foods to your Baby

Summer Activity Schedule for Our Toddler

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Hi there! I’m Katrina (aka Mama). I am a former engineer and chemistry teacher, turned stay at home mom and mom blogger. I have been blogging since 2015, and have taken my love of engineering and science, and tried to applied many of the same methods to my parenting adventure. I am not only a hard working mom and blogger, I am the author of Baby Sleep Solutions, and have more books on the way!

I have a huge passion for Babywise and similar methods that prioritize sleep for our children. I am mom to 3 (including one angel baby that had trisomy 13). A huge mission of mine is to share her story and legacy. I am a big believer in being real and doing what works for YOUClick here to subscribe to my weekly newsletter to follow our story.  This blog is intended to be our story and our ideas- including successes and failures along the way.

You can also find me published at Today Parenting, Her View From Home, VitamedMD, Love What Matters, and The Mirror. Follow me on Facebook and Pinterest for more parenting tips and to hear more about our journey!

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