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9 Best Baby Bottles, According to Experts and Parents

Your baby gets the final say on their favorite bottle—but start with these parent- and tester-approved picks.

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best baby bottles
mike garten

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Even if you plan to breastfeed, a baby bottle is a key item so that others can help with feedings during the first year. This baby-gear category can cause genuine decision paralysis due to the numerous bottle brands, shapes, and materials available, ranging from BPA-free plastic to glass and silicone.

In the Good Housekeeping Institute, our parenting product experts have evaluated more than a dozen bottle brands over the past decade. We've also tested bottles with consumer testers and collected their opinions via survey. We can't guarantee which bottle your baby will settle on, but we can share our tried and tested favorites with you.

Matching your baby to a bottle is trial and error, says Los Angeles-based pediatrician Harvey Karp, M.D., author of The Happiest Baby on the Block. "The good news is that babies have a built-in reflex that makes them want to suck on whatever you put into their mouth, from a finger to a pacifier," Dr. Karp says. "You just may have to try a few bottles until you find your baby’s preference." He suggests not buying too many of any one brand until you're sure your child accepts it.

Best Deal tag iconBest Deal
Natural Flow Anti-Colic Options+ Four-Pack
$25AmazonAlso Consider
Credit: Good Housekeeping/Miguel Rivera

Pros

  • Internal vent helps cut colic, gas, burping, and spit-up
  • Testers and staffers said the bottles reduced fussiness
  • Nipples can be replaced eventually with sippy spouts
  • Many other sizes and glass versions available

Cons

  • The vent adds parts to clean

✔️ BEST FEATURE: Dr. Brown's bottles have a distinctive anti-colic vent down the middle, which you can leave in or take out (hence the name "Options"). The brand claims the internal vent helps reduce spit-up, burping, and gas.

✔️ TESTING NOTES: Dr. Brown's bottles won a previous Good Housekeeping Parenting Award. Testers reported that the bottles helped reduce their babies' fussiness after feedings. Additionally, breastfeeding testers noted that their babies willingly used the Dr. Brown's nipple.

The bottles have earned tens of thousands of five-star reviews online, and are also a favorite of many of our staff parents. "Dr. Brown's was the one I used most," said former Chief Technologist and Executive Technical Director Rachel Rothman. "I had three kids with reflux and found the anti-colic feature helped with that."

"What I especially like about these bottles is that they grew with both my babies," says Nutrition Lab Director Stefani Sassos, a registered dietitian whose daughter is now 4 and son is now 17 months. "You can upgrade to a sippy spout, which helped us transition and saved me from having to spend money on new cups and bottles each time."

Sassos also said, "I breastfed both, and they had no issues with using these."

✔️ MORE INFO: Dr. Brown's bottles come in the classic long, narrow shape, shown, and also in a 5-ounce, wide-neck version, with many more variations as well. There are even Dr. Brown's Options+ glass bottles.

The vent is an extra part to clean. The set comes with a tiny bristle brush to help. The Dr. Brown's Bottle Cleaning Brush with a sponge top is a popular tool for cleaning the bottles themselves.

Approx. cost per bottle$6.33
Claimed materialBPA-free plastic, according to the brand, or glass (shown: plastic)
Number of bottle parts6
Sizes2, 4, 5, 8, and 9 oz (shown: 8 oz)
Debut of the brand's bottles1996
Classic Clear 12-Pack
$17AmazonAlso Consider
Credit: Good Housekeeping/Miguel Rivera

Pros

  • Just over a dollar a bottle
  • Twist design is easy to grip
  • Glass version also available and affordable

Cons

  • Measurement lines are hard to see

✔️ BEST FEATURE: This pack of a dozen bottles gets your cost-per-bottle down to under $2.

✔️ TESTING NOTES: While manufacturers work to innovate the baby-bottle market, these traditional, affordable bottles continue to be a favorite of both babies and parents. In this century, they've been given a "twist" design that makes them easier to grip.

"I picked these up from the supermarket in a pinch, and my son really liked them. They actually became his preferred bottle," one mom told us. The price of the plastic version is hard to beat, and even the glass version is less than $3 a bottle.

✔️ MORE INFO: It's tough to see the ounce marks on the side, since they are clear like the bottle. But with some practice and time, it seems most parents get used to expertly filling even half or three-quarters of any bottle in the dark with their eyes closed.

RELATED: Best Bottle Sterilizers

Approx. cost per bottle$1.60
Claimed materialBPA-free plastic, according to the brand, or glass (shown: plastic)
Number of bottle parts4
Sizes4 and 8 oz (shown: 8 oz)
Debut of the brand's bottles1930s
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3
Best for Breastfed Babies

Philips Avent Natural Four-Pack

Natural Four-Pack
$30AmazonAlso Consider
Credit: Good Housekeeping/Miguel Rivera

Pros

  • Responsive nipple lets a baby control the flow
  • Soft, wide tops might feel more like a breast
  • Wide-neck bottles are also easier to clean
  • Glass version also available

Cons

  • Be sure the top is fully screwed on to prevent leaks

✔️ BEST FEATURE: Nearly every bottle on the market will say it's the closest thing to breastfeeding. We give props, though, to this bottle for the controlled-pace nipple that doesn't overwhelm a nursing infant with milk but responds well to their stop-and-start sucking.

✔️ TESTING NOTES: This brand's significant innovation about 40 years ago was introducing the fat, wide shape of both the bottle and the nipple. The roundness of the nipple might feel more like a breast to babies (it's hard to say, since they can't tell us!), and as parents, we can vouch that wide bottles can be easier to clean. Now, many other companies have taken note and also sell wide-neck versions of their bottles.

The Natural bottle comes in colors, too, such as pink and green.

We also recently tested the Natural in the glass version with consumer testers. Though several noted that they're heavy, those concerned about plastic liked the glass option. "I previously used the plastic Philips Avent bottles with my now-2-year-old. After doing more research on microplastics when I was pregnant with my second, I knew I wanted to switch to the glass," one parent said. The only note: "Sometimes the top needs to be screwed on past the catching point to be fully secured."

✔️ MORE INFO: Phillips Avent sells nipples in five different flow rates so you can adjust for a faster flow as your baby grows and takes in more milk, more quickly.

Approx. cost per bottle$7.49
Claimed materialBPA-free plastic, according to the brand, or glass (shown: plastic)
Number of bottle parts4
Sizes2, 4 and 9 oz (shown: 9 oz)
Debut of the brand's bottles1984
Easy Start Anti-Colic Two-Pack
Credit: Good Housekeeping/Miguel Rivera

Pros

  • Slow-flow nipple and small size for newborns
  • Comes apart for thorough cleaning
  • Can be microwave sterilized with no extra accessories
  • Testers who breastfed said their baby liked the bottle

Cons

  • More parts than most other bottles on our list

✔️ BEST FEATURE: Mam bottles unscrew at both the bottom and top, allowing for thorough cleaning.

✔️ TESTING NOTES: These were a winner in our most recent Good Housekeeping Parenting Awards. A parent tester said, “We’ve had a difficult time convincing our baby to take a bottle, but he took to this bottle on the first try!” Another said, “My baby, who is mostly breastfed, was able to latch easily.”

Mam bottles have a unique "self-sterilization" feature. To use it, unscrew the bottle parts, add an ounce of water to the bottom piece, then load in the nipple top and the main sleeve. Finally, put the cap on top and microwave the entire assembly for three minutes.

"I’ve never seen anything like that with any other bottle," one tester noted. "It would be a great for traveling when you don’t have access to your sterilizer or to boiling water."

Our Kitchen Appliances and Innovation Lab pros don’t suggest microwave-sterilizing a Mam bottle after each use, only occasionally and as needed.

✔️ MORE INFO: This is the small size and extra slow flow nipple for newborns. They come in other colors, including blue and lavender. After a couple of months, your baby might graduate to the 9-ounce size with a nipple that has a faster flow. Mam also makes a 6-ounce glass bottle.

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Features at a Glance

Approx. cost per bottle$7.50
Claimed materialBPA-free plastic, according to the brand, or glass (shown: plastic)
Number of bottle parts6
Sizes4.5, 5, 6, 9, and 11 oz (shown: 4.5 oz)
Debut of the brand's bottles2004
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Duo Hybrid Two-Pack
Credit: Good Housekeeping/Miguel Rivera

Pros

  • Plastic exterior shields a glass interior—milk touches glass
  • Lightweight and durable
  • Good choice for daycares that don't allow solid glass

Cons

  • Premium priced

✔️ BEST FEATURE: When we gave the Chicco Duo Hybrid its most recent Parenting Award, we noted that parents who prefer using glass to feed their babies but are nervous about potential breakage should check out this invention. The inside (where milk touches) is glass, bonded to a plastic outside for durability.

✔️ TESTING NOTES: Chicco developed the glass/plastic hybrid using pharmaceutical technology, creating a permanent bond between the glass inner layer and a plastic outer layer. The invention is called "Invinci-Glass."

A recent tester said, “This bottle solves the issue of not wanting to expose your baby to extra plastic bottles but not having to deal with heavy, breakable glass bottles.” If your child's daycare won't accept glass bottles, but you're trying to avoid traditional plastics, this is a great solution. "I love everything about this bottle," another tester said.

✔️ MORE INFO: You can also get Duo bottles in pink trim, and the bottle also comes in a larger 9-ounce size.

These can be cleaned in the dishwasher top rack and can be sterilized in an electric sterilizer or by boiling them for a few minutes, but you shouldn't use a microwave sterilizer with the Duo.

Approx. cost per bottle$11
Claimed materialInvinci-Glass inside and plastic outside
Sizes5 and 9 oz (shown: 5 oz)
Debut of the brand's Duo bottles2021
Baby Bottle Two-Pack
Credit: Miguel Rivera

Pros

  • Lightweight, durable alternative to plastic or glass
  • Easy to clean and doesn't stain
  • Older babies can grip silicone themselves

Cons

  • Can be a little unsteady when placed on a flat surface

✔️ BEST FEATURE: Amid the plastic vs. glass debate, Comotomo introduced an alternative material for baby bottles: soft, squishy silicone. Silicone is lightweight, durable, and easy to clean. It also doesn't get stained with milk residue like some plastic bottles.

✔️ TESTING NOTES: "When my daughter was in one of her bottle-rebellion phases, she did still accept the Comotomo," Rothman says. That was echoed by a tester who told us, "When my daughter was refusing to suck on a bottle, I liked that I could squeeze some milk out of these right into her mouth."

✔️ MORE INFO: Silicone can be easier for independent-minded older babies to hold by themselves. However, it can be a bit unsteady when placed on a surface. Plus, it's tough to get a name sticker, like you might use for daycare, to adhere to a silicone bottle (we recommend placing one on the colored rim).

These silicone baby bottles can be hand-washed, run through the dishwasher, boiled for five minutes to sterilize, or sterilized in a steam sterilizer. However, don't put silicone in a UV sterilizer, as it speeds the material's degradation.

RELATED: Best Baby Bottle Brushes

Approx. cost per bottle$7.45
Claimed materialSilicone
Number of bottle parts4
Sizes5 and 8 oz (shown: 8 oz)
Debut of the brand's bottles2009
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Simply Natural with SafeTemp Three-Pack
Credit: Good Housekeeping/Miguel Rivera

Pros

  • Vented nipple helps curb reflux and gas
  • Designed to avoid nipple confusion
  • Blue temperature gauge turns white if milk is too hot

Cons

  • Reviews are mixed regarding durability and leaks

✔️ BEST FEATURE: Nuk's bottle has a vented nipple to reduce gas and colicky behavior. The nipple's soft texture and ergonomic design are made to accommodate the way a baby naturally holds their tongue while nursing, to reduce nipple confusion.

✔️ TESTING NOTES: Testers and a staff parent told us their baby took a liking to Nuk. Said one, "My son is exclusively drinking breastmilk and mostly directly from me, so I was pleasantly surprised to find he liked drinking expressed milk out of this bottle too."

A blue temperature indicator on the side disappears when the milk is too hot for a baby to drink, then reappears as the milk cools down and is safe for feeding. It's one of the only bottles we know of with that feature.

Senior Reviews Writer and Analyst Olivia Lipski says her husband prefers using this bottle with their baby because it doesn't leak. "It doesn't leak at all when she's eating from it. The others have small drops that escape and get on her clothes," Lipski says. However, online reviews are more mixed regarding the bottle being leakproof and durable.

✔️ MORE INFO: You can get a four-pack on Amazon. There's now a glass version of the Simply Natural bottle as well. And Nuk makes a newer bottle that is designed for newborns and infants, called Nuk Perfect Match, in a 5-ounce size. That one is also vented and includes a temperature indicator.

Image no longer available

Features at a Glance

Approx. cost per bottle$7.27
Claimed materialBPA-free plastic, according to the brand
Number of bottle parts4
Sizes5 and 9 oz (shown: 9 oz)
Debut of the brand's bottles1950s
8
Most Durable

Boon Nursh 3-Pack

On Sale
Nursh 3-Pack
Now 20% Off
Credit: Good Housekeeping/Miguel Rivera

Pros

  • Durable design of a silicone pouch inside a plastic shell
  • Silicone collapses as baby drinks, preventing excess gas
  • Easy for older babies to hold independently
  • Seven cute color sets

Cons

  • Need some care in tightening the pieces to prevent leaks

✔️ BEST FEATURE: With their silicone construction and protective plastic shell, these bottles are super durable. The silicone inner pouch collapses as your baby sucks, forcing out all the milk without letting them take in too much air. This collapsible design helps reduce gas and reflux without requiring special vents.

✔️ TESTING NOTES: Aesthetically, we appreciate the cute mushroom shape and note that they are easy for older babies to hold by themselves. "I really liked how these worked down the line with their sippy-cup lids," says Rothman.

To assemble these correctly so they don't leak, you need to take the time to line up the silicone inner pouch with the exterior plastic shell and ensure they're sealed tightly together. Then you add the nipple. If you're in a rush, it can feel like one extra step compared to a traditional bottle.

✔️ MORE INFO: Boon's bottles come in seven sophisticated color sets, including a colorblock version and, at the other extreme, a set with a white, gray, and black bottle.

To clean them, you can flip the silicone part inside-out.

Approx. cost per bottle$6.66
Claimed materialSilicone pouch and plastic sleeve
Number of bottle parts5
Sizes4 and 8 oz (shown: 4 oz)
Debut of the brand's bottles2018
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On Sale
Anti-Colic Bottles for Breastfeeding Babies Three-Pack
Now 15% Off
Credit: Miguel Rivera

Pros

  • Nipple is designed to be similar to nursing
  • Vented to cut down on gas and reflux
  • Some testers found their newborns preferred this one

Cons

  • Glass version is only in the 8-oz size

✔️ BEST FEATURE: Lansinoh is a nursing-first company; it claims that their bottle nipple is designed to complement breastfeeding and that their bottle was easily accepted by some of our testers with newborns.

✔️ TESTING NOTES: "My first child wasn't picky at all," one tester said. "But my second was super picky and we finally got her to take the Lansinoh bottles. They seem most comfortable and similar to breastfeeding for her. My only complaint is that they only make glass bottles in the 8-ounce size, so we have to wait until she's older to use glass, which we prefer."

Similar to other bottles on this list, Lansinoh bottles use a vented nipple to cut down on gas and reflux; it's also a controlled-flow nipple so that your baby can use roughly the same actions to drink from these as they use while nursing.

✔️ MORE INFO: If you're a combo mom, doing some mix of breastfeeding and bottle feeding, Lansinoh has a lot of products to support that journey, from breast pumps to nursing pads.

Approx. cost per bottle$5.65
Claimed materialBPA-free plastic, according to the brand, or glass (shown: plastic)
Number of bottle parts4
Sizes5 and 8 oz (shown: 5 oz)
Debut of the brand's bottles2013

How we chose the best baby bottles

testing a dr brown's baby bottle
Courtesy of Tester

Baby bottles are evaluated in the Good Housekeeping Institute’s Kitchen Appliances Lab and with our parenting experts in the Media & Tech Lab. Over the past decade we have reviewed more than a dozen brands. GH Institute analysts and their families have also used bottles at home to observe real-world performance. We send bottles to consumer testers for additional feedback on ease of use and baby preference.

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a staff member of the good housekeeping institute holds a baby bottle upside down to check for leaks, part of a story on the best baby bottles
Good Housekeeping/Jessica Hartshorn

When we survey testers about a baby bottles, a few of the things we ask are:

  • Whether or not the baby accepts it
  • How easy it is to clean
  • How easy it is to put the pieces together
  • How durable it seems over time
  • Whether the bottle has a tendency to leak

We also ask our consumer testers whether they plan to buy more of a brand they've tested or would recommend the brand to friends.

What to consider when shopping for the best baby bottles

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You decide which bottle to try. Your baby decides to take it—or not. These tips can help you sort through the options:

✔️ Material: Some new parents, eager to avoid plastics, initially want a glass bottle for feeding a baby breastmilk or formula. However, glass bottles are heavier, sometimes a little harder to grip, tougher for an independent-minded older baby to hold themselves, and more expensive.

For all those reasons, the top-selling bottles in the U.S. continue to be inexpensive BPA-free plastic. Several of our recommendations are sold in both plastic and glass, including our best overall and best value bottles.

Silicone is a new and popular option. It's soft, lightweight, and durable—though it is squishy. It's tough to crack, unlike plastic or glass. Two of our options are silicone baby bottles.

✔️ Size: Newborns drink less but need to be fed more frequently than 6-month-olds. It's helpful to read the AAP guidelines on how much babies eat. Many parents start their baby with a 2-, 4-, or 5-ounce bottle and then work up to 8-, 9-, 10-, or 11-ounce size as their baby grows. Every baby is different, so keeping all of your well-baby appointments will help you and your pediatrician track your baby's growth and discuss feedings.

✔️ Nipple shape: "Take a moment to actually look at your own nipple and the shape of the bottle nipple you plan to use," Sassos says. "Since every bottle and nipple design is a bit different, finding one that most closely matches your own shape can help make feeding smoother and more comfortable and familiar for your baby."

✔️ Nipple flow speed: Nipples are sold with different flow speeds, meaning milk comes out faster or slower depending on the number and size of openings. Check the packaging to see which nipple is included and consider buying a few of the brand's other nipples just in case. If your baby seems upset about the bottle, try swapping out the nipple for one with a faster or slower flow speed to see if that helps.

In general, younger babies need a slow flow so they don't get a face full of milk; older babies can handle a faster flow and might act hangry if they can't gulp as much as they want.

"If you are trying a bottle and the baby spills, coughs, or chokes, the flow may be too fast," said Beth Iovinelli, B.S.N., R.N., IBCLC, a registered nurse and certified lactation consultant who owns the Milk Street Lactation Support Center in Norwalk, Connecticut. "If the baby takes a long time to take the bottle, you may need to try a different nipple with a faster flow."

✔️ Pump compatibility: If you'll be expressing breastmilk, you can pump into storage bags or pump directly into a bottle. Most major plastic and glass bottle brands can screw right onto a traditional breast pump, though some require an adaptor.

Silicone bottles don't work with many pumps, although there are exceptions. Wearable breast pumps have their own milk-collection containers. The bottom line is: Don't stress too much about this. If your baby loves a bottle but it doesn't screw onto your pump, you'll need to do some delicate milk transfers, but it will all work out.

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What is BPA and why are we concerned about it?

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Bisphenol A (BPA) is a chemical compound still used in many clear, hard plastics to make them clear and durable, but it's been banned in baby bottles and sippy cups since 2012. The U.S. Environmental Protection Agency (EPA and other health experts explain that research shows BPA can act as an endocrine disruptor, meaning it can mimic or interfere with the body’s natural hormones. Research raised concerns that BPA could leach into food and liquids, especially when heated, and potentially negatively impact children’s growth and development.

While removing BPA has reduced some risks, it hasn’t eliminated worries about microplastics. Plastic bottles can still release microscopic particles as they degrade with use and heat sterilization. For that reason, the Cleveland Clinic advises replacing plastic bottles every three to six months. To avoid these issues altogether, experts at the Mayo Clinic recommend switching to glass bottles.

How to clean baby bottles

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There are several cleaning methods, but whichever you opt for, it's essential to follow these guidelines from the Centers for Disease Control:

  • Wash your hands before handling your baby's bottles.
  • Baby bottles must be cleaned with dish soap, not just rinsed, after every use.
  • Feeding items should be sanitized once a day if your infant is younger than 2 months, a preemie, or health-compromised. As your baby grows older, regular cleaning after each use is sufficient, with occasional sanitizing for added peace of mind.
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set of pink baby feeding accessories next to a transparent container
Good Housekeeping/Jessica Hartshorn

The easiest way to clean any baby bottle is in the top rack of the dishwasher. It helps to have a dishwasher basket to hold small parts, like bottle nipples. If you wash baby bottles on a normal, quick, or eco cycle and opt to air dry, you’ll want to occasionally sterilize in addition to using the dishwasher.

Hand-washing a baby bottle also works. The CDC suggests you put the parts in a large, clean bowl and add soap and water before scrubbing, rather than letting parts fall into the sink, in case the sink harbors germs.

Our favorite tool is a good bottle brush that gets into all the crevices, like the OXO Tot bottle brush.

Any dish soap is good, though there are some brands such as Dapple Baby Bottle Soap that specifically target fatty milk residue to remove stubborn stains.

    How to sterilize baby bottles

    double line break

    Sterilization means using high heat to eliminate bacteria, viruses, and other microorganisms. The inexpensive, old-fashioned way to sterilize baby bottles and nipples is to boil a pot of water and add the bottle parts to it for five minutes. Remove the items with clean tongs.

    However, many of us have a story of needing to tend to the baby halfway through the process, and the parts being accidentally left to melt. New parenthood is truly a fog!

    The CDC says that if you use a sanitizing cycle and a heated dry cycle on your dishwasher, you've effectively sanitized everything.

    Another method is to invest in a microwave steam sterilizer; with just a bit of water and about two minutes, you can sterilize bottles and parts quickly. Some bottle brands sell their own sterilizers, such as the Avent Microwave Steam Sterilizer.

    Finally, there are electric sterilizers that will keep your baby's accessories off your stove and out of your microwave. These plug in and heat all the parts to kill germs. Some bottle brands also sell them; the Dr. Brown's Deluxe Electric Sterilizer is one such model.

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    How long can a bottle of milk sit out?

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    At room temperature, expressed breastmilk or formula is safe for only two hours. If you come across a bottle that's been sitting out for that long or longer, you need to toss the milk or formula that's inside and clean the bottle thoroughly.

    Pairing breastfeeding with bottle feeding

    a baby drinks from a bottle so the parents can provide feedback to good housekeeping
    Chrisanne Grise Peloquin

    Some parents exclusively nurse, and others begin with formula from day one. But these days, it's common for parents to pair breastfeeding with bottle feeding—using either expressed breastmilk or formula (called combination feeding).

    If a nursing mom wants others to help with feedings, it's smart to introduce a bottle by the one-month mark. "Once your baby has the hang of nursing—usually around 2 or 3 weeks old, 4 weeks max—I recommend offering one bottle a day (whether that’s breastmilk or formula)," says Dr. Karp.

    "Most babies happily partake in both," says Caroline Long, M.D., a pediatrician at Manhattan Pediatrics. "However, occasionally there will be a finicky baby who strongly prefers one to the other. For a mom who wants to continue to nurse, I would usually suggest not giving more than one bottle a day of formula to maintain milk supply."

    One favorite tip is to have anyone but the nursing mom bottle-feed the baby, to help establish that it's the other parent, grandparent, or caregiver who delivers the bottle.

    Dr. Karp offers this: "If a nursing baby resists taking the bottle, some parents are told to wait for the baby to get 'really hungry' before trying to give the bottle. They think that, when hungry, the baby will have no choice but to take the bottle. Unfortunately, very hungry babies often have no patience to try to suck from anything other than their beloved breast. Instead, if a breastfed baby resists latching onto the bottle, try offering a bottle with some warm breast milk at the end of a baby's nursing session, when the baby is getting comfy and sleepy and is less likely to notice the difference."

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    Bottle marketing terms to know

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    If you're a first-time expectant parent, you might be swayed, confused, impressed, or overwhelmed by the claims made by baby-bottle manufacturers. Here, we've compiled attributes you're likely to have read about.

    • Anti-colic: After Dr. Brown's debuted a vented bottle, many others began to follow suit and offer anti-colic features and claims. It's not all talk: Various bottles now have vented nipples or interior vents that help keep air out of baby's tummy. Gas needs to be burped or farted out, often with crying beforehand, so keeping air out is welcome. Venting can also help prevent reflux, which is when stomach contents come back up and your baby spits up. When you see a bottle labeled "anti-colic," read further to understand how or why the maker claims it achieves this.

    Ready for the confusing part? Colic is not actually caused by gas or reflux. Parents may be quick to say a crying baby is "colicky," but as noted by the Mayo Clinic, Dr. Karp, and many other experts, colic is defined as frequent, prolonged, and intense crying for no apparent reason. So if you clear up your baby's colic by switching bottles, they probably actually had bad gas or reflux.

    • Most like mom: This is a newer claim that nearly every bottle company makes. Some bottles are literally shaped more like a breast than others, and some claim their technology closely mimics a breast in terms of flow, texture, and nipple holes. (For the record, the number of ducts varies woman to woman, but the Susan G. Komen foundation says that most women have "about 10" milk ducts.) Given that every woman's breasts are different, any claims to be "like mom" are a gamble, but our Lab experts appreciate that bottle companies are looking to the original milk-delivery system for inspiration.
    • Easy latch or "accepted" by baby: "Latch" is the term for when a breastfeeding baby successfully gets on the breast to nurse. Bottle companies also mention that babies can latch onto their bottle nipple. Acceptance means a baby takes the bottle. Trust us, it's a huge disappointment when your baby goes on a bottle strike and refuses a brand or, when things are really dire, refuses any bottle. We appreciate that studies show many babies accept a particular bottle or nipple, but ultimately, only your own baby's preference matters to you.
    • Nipple confusion: Brands sometimes claim that they can prevent nipple confusion, again by having a bottle nipple that is similar to a human one. Unfortunately, this sows seeds of worry in parents who are afraid that once their baby takes a bottle or pacifier, they will forget how to breastfeed.

    "The notion of nipple confusion does not give baby enough credit," Iovinelli says. "If breastfeeding is going well and baby is latching, most can go back and forth between bottle and breast without much issue."

    Why trust Good Housekeeping?

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    For 120 years, the experts in the Good Housekeeping Institute have helped consumers make good product choices for their homes and families. Parenting products are reviewed among several Labs. For instance, the Media and Tech Lab handles baby monitors, the Textiles Lab oversees nursing pillows, and the Nutrition Lab recommends baby formula. Baby bottles are tested in our Kitchen Appliances Lab, often as part of our annual Parenting Awards.

    This article was written by Contributing Writer Jessica Hartshorn, who nursed and pumped for bottle-feeding her two kids for two years each. She covered the baby-gear market most recently for Parents magazine and before that, for American Baby magazine.

    Many of the initial testing notes are from former Chief Technologist Rachel Rothman, a trained mechanical engineer and mom of three.

    Headshot of Jessica Hartshorn
    Jessica Hartshorn
    Contributing Writer

    Jessica (she/her) is a freelance writer with several decades of experience writing lifestyle content and evaluating home and parenting products. A mom of two teens and two cats, her previous work can be seen in American Baby and Parents.

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