Question: is a sippy cup bad for teeth?
Answer: Tooth Decay Nimali Fernando, co-author of Raising a Healthy Happy Eater, says: "Sippy cups encourage babies to do just that, to sip. But constant sipping on anything but water isn't good for the health of a baby's new teeth. Acid from the drink may wear down the enamel and demineralize teeth, leading to tooth decay.