Colic in infants may result from a range of influences, including swallowing air during feeding. Closer to Nature's new Advanced Anti-Colic™ range is specially designed to help reduce air bubbles in milk and encourage good lactation to help reduce the risk of baby swallowing air during feeding. The air flows through the tube, heading to the space designated for it at the base of the bottle, so that its flow is completely diverted from the milk.