NUK Simply Natural Fast Flow Nipples 6+m, 2-Pack

I had one of these bottles and loved it, so I ordered another one. The new nipple does not seem to let much liquid out (it takes my son over an hour to drink 5 oz), and it keeps sucking into itself. The original nipple I had does not do this.

I did a lot of research before my baby was born for a bottle and nipple that was close to a breast as possible. I bought a couple others and tried them out as well. My baby will only drink comfortably from the natural flow nuk bottles and nipple system. I do love these nipples a lot, but I have to agree with the other reviewers. From day one I have had to supplement along with breastfeeding at least one feeding a day of formula. My baby gulps her bottle down way too fast for my liking, I also wish Nuk had a slower flow nipple. Once in a while my baby will choke on the amount she is drinking because the flow is too fast. Other than that, it's a great product and will continue to use.

I have a 2 month old that is transitioning to a bottle while his mother goes back to work. I purchased the slow and medium flow nipple 2 pack. The medium flow came out to fast so I found the slow flow nipples worked the best. My issue is that I bought 2 two packs of the slow flow nipples and one of the nipples is so thin that the baby is sucking the nipple into itself. It would appear this is a defective one. The other 3 work perfectly. I hate to have to purchase another pack of two when I need the one I purchased to work as promised. I will be progressing to the medium flow in a couple of months. This becomes expensive when you pay for two items, but can only use one.

I should've read the reviews before I bought this, I thought three holes would be too much for my two month old and I was right. Which is a shame because this is the only shape nipple bottle that he has taken so far which would have been really nice if there could be a slow flow that's for young breast-fed babies. Maybe when he's older we can use it.

I bought this for my daughter, it's the only type of bottle she's taken but the slow flow is way to fast for her, she chokes & gets so gassy because of how fast she's gulping ): after every bottle she always has an upset stomach.