Baby bottles and nipples are very important for feeding your baby as he or she grows. There is no doubt that there will come a time in the first year of your infant’s life that you will prefer to bottle feed your baby.

This is a fact whether you choose to breast feed your newborn or not. Baby nipples come in different sizes and flow rates. The type of nipple and bottle you choose to use for your baby will mainly depend on what your baby will be drinking from.

Many babies will drink from any nipple as long as there are nutrients flowing from it. However, there are some infants who are a bit more refined in their selection of where their formula or milk flows from.

cute-baby-unhappyWith that said, we advise you to buy the best nipple the market has to offer. According to our research, we have found out that the most ideal choice are the Avent nipples. They come in different flow rates for your baby.

Choosing the Ideal Avent Nipple Size for Your Baby

Avent has six nipple sizes that you can choose from. They all differ by the flow rate. When choosing a nipple for your son or daughter, consider their age and size.

Based on the feeding recommendations, Avent has nipple sizes for 0+, 1+, 3+, and 6+ months’ old babies. Choose appropriately.

First Flow - Newborn Flow - Slow FlowYou will also want to observe that the fluid being expressed from the bottle is not coming out too quickly. If it is, you will need a smaller size.

Medium Flow-Fast Flow-Variable FlowYou must also choose the sizes depending on the bottle you will be using. Most of the Avent nipple sizes are compatible with Avent Natural Bottles.

The 6 Avent Nipple Sizes

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Click for DetailsIdeal AgeFeeding Guide
First Flow❤ 0 monthSuitable for preemies & newborns
Newborn Flow❤ 0+ monthsSuitable for newborns & breastfed babies of all ages
Slow Flow❤ 1+ months Suitable for newborns & breastfed babies of all ages
Medium Flow❤ 3+ months Suitable for babies three months of age and older
Fast Flow❤ 6+ months Faster flow that is suitable for babies who are six months of age and older
Variable Flow❤ 3+ months The slot is adjustable to allow thicker liquids and suitable for babies who are 3 months or older

Avent Natural First Flow Nipple

The Avent Natural First Flow Nipple has a small hole that delivers a slower and a more controlled flow rate. It is the most ideal choice for a newborn’s small tummy.

First Flow NippleThese teats are made of durable silicone, which is ultra-soft, odorless, BPA free, and flavorless. These teats can be disinfected in any Avent steam sterilizer. Alternatively, you can wash them in a dishwasher or boil for five minutes.

The nipples have a wide breast shape that allows for a natural latch on. This makes it easy for your newborn to combine bottle and breast feeding.

They have a flexible spiral design with distinctive comfort petals that develop flexible teats. This ensures there is no nipple collapse during feeding.

  • Wide breast shape makes it easy for your baby to combine bottle and breast feeding
  • Ultra-soft teats mimic the feel of a natural breast
  • Flexible spiral design prevents nipple collapse during feeding
  • Anti-colic vent technology eliminates colic and discomfort

  • The size may be too big
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Avent Natural Newborn Flow Nipple

The Avent Natural Newborn Flow Nipple has an exceptional anti-colic valve that keeps air in the bottle and not in the baby’s stomach by flexing. This reduces colic and fussing.

Newborn Flow NippleThe rounded, soft classic teats are designed from dishwasher safe silicone. This material is odorless and flavorless. So, your baby will only taste the milk or formula.

It features distinctive valve flexes to your newborn’s feeding rhythm. This allows your baby to choose his or her desired flow, making feeding comfortable.

It has a single hole which teaches the baby to drink with the slowest flow. This makes easy for the newborn to control the flow similar to the he or she is breastfeeding.

  • Suitable choice for Avent Classic+ bottles
  • It is dishwasher safe and can be sanitized with a steam sterilizer
  • Durable, soft silicone is flavorless and odorless
  • Allows your newborn to minimize eating by controlling the flow rate
  • Anti-colic valve reduces colic as well as discomfort

  • May fail to fit your baby’s bottle properly
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Avent Natural Slow Flow

The Avent Natural Slow Flow nipple is made to help your child combine bottle and breast feeding. It has a wide shape that resembles a mother’s breast.

Slow Flow NipplesThis is a rounded, soft nipple that enables natural latch on for an amazing flow. It features an exceptional petal structure that improves flexibility. This prevents the nipple from collapsing as your baby feeds.

Another remarkable quality is the twin anti-colic valve, which prevents the newborn from suckling air by keeping it in the bottle. This makes feeding extra comfortable.

The nipple is made of durable, soft silicone. This material is flavorless and odorless. You can sterilize the teat by boiling, dishwashing, and steam sterilizing.

  • Breast-like structure allows your baby to combine breast and bottle feeding
  • Comfort petals prevent nipple collapse and makes it more flexible
  • Twin-colic valve keeps air off your child’s tummy
  • The silicone used is durable, soft, flavorless, odorless, and BPA free
  • Dishwasher safe

  • Only suitable for Phillips natural bottle
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Avent Natural Medium Flow

The Avent Natural Medium Flow teat is a suitable choice for babies who are at least three months old. Ultra soft nipple mimics the texture of the mother’s breast.

Medium Flow NippleComes with a flexible spiral structure along with unique comfort petals. This combination develops a flexible teat that prevents nipple collapse and allows for a natural feed.

The teat features anti-colic vent technology helps to get rid of colic as well as discomfort. It achieves this by keeping air away from your infant’s small stomach.

  • Wide breast-shaped teat allows for natural latch on for easy feeding
  • Ultra-soft structure mimics the feeling of a mother’s breast
  • Airflex vent technology minimizes colic as well as discomfort
  • Flexible spiral design prevents nipple collapse during feeding

  • The flow may be faster for some babies
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Avent Natural Fast Flow

The Avent Natural Fast Flow teat is designed for older babies who are at least six months old. The teat is made of durable, soft silicone. This material is BPA-free, flavorless, and odorless.

Fast Flow NippleIt has a wide breast shape that allows for natural latch on. This makes it easy for your child to combine bottle and breast feeding.

The nipple is integrated with Airflex vent technology to help get rid of colic as well as discomfort. It achieves this by keeping air off your child’s tummy.

  • Soft, durable silicone is BPA free, flavorless, and odorless
  • Airflex vent technology gets rid of colic and any discomfort
  • Wide breast shape makes it easy to combine bottle and breast feeding
  • It is dishwasher safe

  • It may leak with a non-compatible bottle
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Avent Natural Variable Flow

The Avent Natural Variable Flow teat is integrated with a slot hole. This makes it easy to change the flow, providing an extra fast flow for thicker fluids.

Variflow NippleIt is very easy to achieve your desired flow, all you have to do is turn the feeding bottle to line-up with the (I, II, or III) marking. This allows you to conveniently select between slow, medium, and fast.

The nipple is made of durable, soft silicone that is flavorless and odorless. It also has a wide breast shape that allows your baby to easily combine breast and bottle feeding.

  • Slot hole design offers slow, medium, and fast flow rates
  • Turning the bottle to line up with the marks changes the flow
  • Wide breast shape allows for breast and bottle feeding
  • Airflex vent technology reduces colic and discomfort

  • May not be suitable for younger newborns
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Final Words

You may be wondering when you should change the teat size. If you find that your baby is getting frustrated or taking longer than twenty to thirty minutes to finish a feed, this could be an indication that the flow rate is too slow and you need to go up the teat size.

You are also advised to change teats every three months or the first signs of wear and tear. This will ensure that the nipple is performing at its best, and your baby is enjoying a suitable feed.