The impact of sugary diets on tooth decay is shocking. It has been proven that water consumption, as opposed to other liquids, such as soda pop, juices, sports drinks, and milk, is related to a decrease in cavities. This was even more relevant when the child was 36 months old or older. It is important for children to get enough milk and calcium for the formation of bones and teeth, but also be aware of the natural sugar in milk (lactose) that can lead to decay if brushing does not occur after consumption.