Doctor Betti Dr. Betti Hertzberg Ressler is a Board Certified Pediatrician on staff at Miami Children's Hospital. Dr. Hertzberg developed the toilet training video "Let's Go Potty." She is the co-author of "The Doctor's Book of Home Remedies for Children." C Question: My Husband and I are shortly going to Lanzarote with our 5 month old baby. My daughter is bottle fed and I am concerned about what type of bottled water that I can use to make her feeds up with. Please could you advise/recommend the safest bottled mineral water? - Liz Answer: When traveling a change in water or food may bring about stomach upset in young babies as well as adults. If you are not sure about the water supply in the town where you will be staying, it may be best to buy bottled water for formula mixing. Ideally, a ready to feed formula would be convenient. (although sometimes expensive and bulky). Be careful when using bottled mineral water. The mineral content may be too high for your baby's kidneys to handle. This may cause more problems than using tap water. Cooled water that has been boiled for 15 to 20 minutes is a safe alternative. Also see: Breastfeeding when baby isn't hungry? Can a pediatrician comfortably prescribe and manage ADHD medication or is it better suited to a psychiatrist? Ask Dr. Betti your questions This information is not intended to be a substitute for visiting your pediatrician. If you or your child has specific concerns, you should see your doctor for a diagnosis and treatment.