Is it okay/healthy to continue giving my 8-month-old distilled water with her feedings?

Yes, but precaution: Most infants should get enough fluid in their diet and formula. In warm weather, offering some extra water is fine, any approved brand is fine. Depending on local flouride levels, she may need fl drops but check w/ your md. But distilled water has no flouride. Be sure she is not taking water at times she should be getting formula.

Tap water : I would highly recommend fluoridated water for your child. Fluoride is very important during the formation of your child's teeth. If your city water is fluoridated, by all means give your child tap water.

Yes but....: Yes, but then you need to discuss with your pediatrician whether a Fluoride supplement is necessary for proper dental health.

How much water?: It is ok to give 8 month old baby water but how much water that is the question you should ask.You can give water after the baby has finished the meal of whatever you are giving him/her, you cand give upto 2 oz of water with a sippy cup.You will see he will not take more than that as his stomach is full and if he/she drinks more it can cause vomiting.

Yes but....: Yes, but then you need to discuss with your pediatrician whether a Fluoride supplement is necessary for proper dental health.

Not necessary: Breast milk or formula is a proper balance of nutrients and fluid based on babies needs.I consider supplemental water, tap or distilled only of value if you need to appease your in-laws to keep peace at home. If anything she will use it quickly and use more diapers.

Yes but....: Yes, but then you need to discuss with your pediatrician whether a Fluoride supplement is necessary for proper dental health.

A few thoughts...: An 8 month old baby is exploring his world, so he gets plenty of germs anyway (so water need not be distilled, but just of drinking quality). Secondly, babies are designed to drink breastmilk whenever they are thirsty or hungry, so water is not needed (formula is ok). A few ounces of water a day is fine to give, but breastmilk or formula is more nutritious.