Flow influences latch
Nipples packaged as “slow flow” have a wide range of flow rate. We studied bottle nipples and found the fastest slow flow nipple was 11 (yes, eleven) times faster than the slowest slow flow nipple! We have rated slow flow nipple brands in Balancing Breast and Bottle as very-slow, medium-slow, and fast-slow. Most babies have an organized swallow pattern on a slow-flow, medium-slow rate.
Facts about nipple flow
Just because a nipple drips doesn’t mean it has a faster flow than a nipple that does not drip.
The amount of milk coming out of the nipple at the beginning of the feed will effect how a baby accepts the nipple. This can be controlled.
The bottle flow can be controlled to mimic let-downs. This helps make bottle-feeding more like breastfeeding.