Infant Feeding Labs

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Wellesley, MA
Infant Feeding Labs

Infant Feeding Labs is an independent laboratory that tests infant feeding products.

03/17/2026

On St. Patrick’s Day, people often talk about luck.

But when it comes to infant feeding, progress rarely comes from luck alone. It comes from careful assessment, clinical expertise, and families who advocate for their babies every day.

I’m grateful to support clinicians and parents working to help infants feed safely and successfully.

Wishing everyone a safe and happy St. Patrick’s Day. 🍀 **les

03/16/2026

I’ve received a lot of requests to try the Parent’s Choice bottle line, and I’m excited to share that I just finished the flow testing. The results will be available very soon!

Many parents really like this brand because it’s easy to find at Walmart and budget-friendly, making it a smart choice for families. One important thing I noticed during testing is that the product labeled “Slow Pro” didn’t quite live up to its name, as it didn’t provide a slow flow rate. This means it might not be suitable for infants who need a true slow-flow ni**le.

Getting the flow labels right is really important because the flow rate can impact feeding coordination and safety for some babies. **les

03/13/2026

Flow rate data is now available for Lil' Kooee Newborn (0+) and SS (1+) ni**les!

If bottle-feeding is part of your clinical work, you can access the data through Flow Pro, where I share objective flow information and education to support thoughtful, developmentally informed feeding decisions.

Learn more or join here: https://infantfeedinglabs.com/professionals. **les

03/11/2026

Let’s talk about Lil' Kooee, an Australian brand.

The overall size is similar to Dr. Brown’s, but the shape has a slightly more sloped feel. It’s a fairly simple design, without a lot of extra components. Assembly is straightforward and there aren’t many parts to manage.

One thing I would suggest is making sure the vent is fully open before feeding. Otherwise, it goes together easily and doesn’t feel overly complicated.

I have tested the Newborn and SS flows, and that data is now available through Flow Pro here: https://infantfeedinglabs.com/professionals. If you’ve used this brand, I’d love to hear your experience! **les

03/10/2026

Welcome, Alberta Children's Hospital, to the group Flow Pro membership!

Group memberships allow clinical teams to access measured flow rate data and education together, helping support more consistent, evidence-informed feeding decisions across units and providers. When teams are working from the same data, collaboration becomes clearer, and care becomes more aligned.

If your hospital, clinic, or department is interested in group access to Infant Feeding Labs Flow Pro, you can learn more here:
https://infantfeedinglabs.com/professionals.

03/06/2026

Flow rate information now available for the Dr. Brown's Ultra-Preemie narrow, Preemie narrow, Level T narrow, and Level 1 - 4 narrow as well as the Preemie wide-neck and Levels 1-4 wide-neck.

Data on flow rates through Level 1 are available for free through the downloadable chart on my website. All other flow rates are available through the Flow Pro membership.
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If feeding babies is part of your clinical work, join Flow Pro so you can access information to guide product selection and education to support thoughtful, developmentally-informed feeding decisions. Link in my bio! **les

03/05/2026

I’m very excited to share that flow rate information for Dr. Brown’s products is now available as a downloadable chart on the website through Level 1, with no membership required.

For Levels 2–4, measured flow rate data is available through Infant Feeding Labs Flow Pro, where I share additional flow data and education to support thoughtful, developmentally informed feeding decisions.

My goal is to make reliable flow information more accessible while continuing to provide deeper data for professionals who want to go further!

You can access the chart on the website or learn more about Flow Pro here:
https://infantfeedinglabs.com/professionals. **les

03/04/2026

One of the most important things to know about Dr. Brown’s bottles is that older versions may have the original blue venting system and collar. The newer Options+ design introduced a green vent system and collar, and with those versions, the vent can technically be removed and the bottle used without it.

There are important exceptions. The narrow neck Ultra and Ultra Preemie ni**les do not have the added V-cut in the rim and are not designed to be used without the vent system in place. Most of the other ni**les do include that V-cut feature.

That said, in my experience, even with the V-cut design, these bottles tend to vent more effectively with the internal vent system assembled. Removing it can reduce flow and may make it harder for babies to extract milk, sometimes leading to ni**le collapse or leaking.

Understanding which version you have and how the system is designed to function can make a meaningful difference during feeding! **les

03/03/2026

Another thing I have heard from parents about Dr. Brown’s bottles is a concern about the tip of the venting system being exposed to air instead of sitting in the milk. Some parents assume it works like a straw and needs to be submerged. That is not how it works.

Milk does not travel up through the vent tube. Instead, milk moves through the openings in the side of the venting system towards the ni**le. The vent system’s role is to allow air to enter the bottle and help equalize pressure. That’s why it doesn’t matter if the tip of the vent is in the air.

One thing to keep in mind is that the slits in the ni**le are quite small. With thickened feeds, milk may have more difficulty moving through those openings.

**les

03/02/2026

Let’s talk about Dr. Brown’s narrow and wide-neck bottles.

The narrow and wide versions differ at the base of the ni**le and in overall bottle shape. Both include multiple components: the ni**le, collar, and internal venting system.

Dr. Brown’s offers a wide range of flow options, including Ultra Preemie (narrow only), Preemie (available in both), Transition/Level T (currently narrow only, with wide-neck coming soon!), Levels 1–4, and a Y-cut option.

If you’ve worked with narrow vs wide neck in practice, I’d be interested in what differences you’ve noticed! **les

02/27/2026

Flow rates are now available for the Herobility Extra Small (XS) and Small (S) through Infant Feeding Labs Flow Pro Membership. If bottle ni**le flow is part of your clinical work, Flow Pro provides access to objective flow data and education to support thoughtful, developmentally informed feeding decisions.⁠
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Link in bio to learn more or sign up! **les

02/25/2026

A quick tip if you’re ordering the Herobility bottle directly from their website. It’s a Swedish-based company, and depending on where you’re ordering from, there may be additional shipping fees, currency conversion charges, or import costs.

Those extra charges aren’t always obvious at checkout, so it’s worth looking into before completing your purchase.

Just something to keep in mind if you’re exploring this brand from the US! **les

Address

One Hollis Street , Suite 215
Wellesley, MA
02482

Telephone

+16179028774

Website

https://infantfeedinglabs.com/

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