Toddlers, under three years of age, need frequent, small, calorie-laden snacks. Their stomachs are no bigger than their fists. Toddlers don’t want to sit down to three big meals a day, nor do they have the stomach capacity to do so.
At this age, if allowed to, toddlers can overdo the drinks. Hence, bottles and sippy cups hold significant attraction for very little children. The liquids taste nice, they are easy to consume and sucking offers emotional comfort.