None. She never had water until about 8 months and that was mixed with a little juice. She is EBF so she doesn't need water at this point according to her ped. Hope this helps!
I started offering water to my son around 6 months just to start using the sippy cup. He now drinks about 5-6 oz of water throughout the day (he's 9 months tomorrow). He really loves drinking from his sippy cup now. We offer it during his three meals and when we're out on walks. My pedi said to offer a few oz back at our 6 month appointment to start getting some fluoride in his diet for his teeth.
Re: water