Reader support keeps this site open, opinionated, and happily independent. As an Amazon Associate, I earn from qualifying purchases.7 Best All-Natural Baby Formula | A2 Protein Eases Tiny Tummies

Choosing a formula for your baby means navigating a landscape of ingredient labels, marketing claims, and your little one’s unique digestive needs. The deepest concern for most parents isn’t just finding any formula, but finding one that uses clean, recognizable ingredients without the corn syrup, palm oil, and synthetic additives that populate many conventional options.

I’m Rikta — the co-founder and writer behind FitlyFast. I’ve spent hundreds of hours analyzing organic certifications, ingredient sourcing, and the specific protein structures like A2 beta-casein that determine how gently a formula sits in a newborn’s stomach.

This guide cuts through the noise to evaluate the best options for a best all-natural baby formula by focusing on what really matters: ingredient purity, digestibility, and third-party certifications that guarantee your baby is getting clean nutrition from the first bottle to the last.

How To Choose The Best All-Natural Baby Formula

Not every “natural” label means what you think it does. Many formulas market themselves with wholesome imagery while relying on corn syrup solids as the primary carbohydrate or using palm oil, which can interfere with calcium absorption and cause constipation. Here is what to look for when filtering for truly clean nutrition.

Ingredient Transparency: The First Ingredient Test

Always check the first two to three ingredients. Quality formulas lead with an organic milk base (lactose) rather than corn syrup, maltodextrin, or sugar. Avoid formulas that list palm oil as a fat source — it reduces calcium absorption and can harden stools. The best all-natural baby formula will have a short ingredient list, free of artificial growth hormones, and will be non-GMO verified or USDA Organic certified.

Protein Structure: A2 vs. A1 Beta-Casein

Standard cow’s milk contains A1 beta-casein protein, which can be harder for some infants to break down, leading to gas, fussiness, and inflammation. A2 beta-casein is structurally closer to the protein found in human breast milk, making it significantly gentler on tiny digestive systems. If your baby struggles with standard cow’s milk formulas, an A2 option is often the first switch to try before moving to hydrolyzed or hypoallergenic formulas.

Quick Comparison

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Model Category Best For Key Spec Amazon
Bobbie Combo Feeding Kit Organic Premium Combo feeding, EU-style ingredients 100% lactose, hexane-free DHA $39.99Amazon
Earth’s Best Organic Organic Mainstay Daily feeding, balanced nutrition 32 oz container, no corn syrup $42.99Amazon
Happy Baby Organic A2 A2 Protein Gentle digestion, EU-made Probiotics + prebiotics blend $35.99Amazon
Baby’s Only A2 Organic A2 Value Organic A2 on a budget No corn syrup or palm oil $30.98Amazon
Similac Advance Lamehadrin Kosher Certified Badatz Cholov Yisroel families DHA, ARA, no palm olein oil $36.99Amazon
Mama Bear Gentle Premium Gentle Blend Fussy/gassy babies, value Partially hydrolyzed proteins $32.23Amazon
Similac Organic RTF 6-Pack Ready-to-Feed Travel, late-night feeds No mixing, no corn syrup $70.14Amazon
↻ Live Amazon prices — as of Jul 3, 2026 5:42 PM. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product. As an Amazon Associate I earn from qualifying purchases. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED "AS IS" AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME. Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.

In‑Depth Reviews

Best Overall

1. Bobbie Organic Combo Feeding Kit

100% LactoseHexane-Free DHA
Bobbie Organic Combo Feeding Kit$39.99as of Jul 3, 5:42 PM

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Bobbie’s formula is built on European-style standards: 100% lactose as the sole carbohydrate, hexane-free DHA sourced from algae rather than fish oil, and no corn syrup, maltodextrin, or soy lecithin. The kit pairs a 14.1-ounce can of their Original formula with organic Vitamin D drops, making it a natural starting point for parents combo feeding with breast milk.

Parents report notably less gas, constipation, and reflux compared to standard US formulas. The protein ratio (60:40 whey-to-casein) mimics breast milk closely, which helps with smooth transitions. The can is smaller than most competitors, but the ingredient transparency and third-party certifications (USDA Organic, Clean Label Project) justify the premium tier.

The Vitamin D drops are ethylenediamine-free and deliver 400 IU per 3-drop serving, matching AAP recommendations. This is a purpose-built kit for the parent who wants complete nutritional control without synthetic additives.

Why it’s great

  • No corn syrup, maltodextrin, or palm oil — truly clean ingredients
  • Hexane-free, algae-sourced DHA for brain development
  • Includes certified organic Vitamin D drops for supplementation

Good to know

  • 14.1 oz can is smaller than standard 21-32 oz containers
  • Initial metallic scent from iron content noted by some parents
Mainstay Pick

2. Earth’s Best Organic Dairy Infant Formula

No Corn SyrupPrebiotics
Earth's Best Organic Dairy Infant Formula$42.99as of Jul 3, 5:42 PM

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This 32-ounce container offers a high value for an organic formula, and recent formulation improvements removed added corn syrup entirely. It includes DHA, ARA, lutein, and prebiotics designed to bring the nutrient profile closer to breast milk while supporting immune and eye development.

Parents report that babies who struggled with Similac or Enfamil — particularly with vomiting and constipation — transitioned without issues. The formula dissolves less smoothly than some competitors; a slight fishy odor from the DHA is occasionally mentioned, but babies generally accept it well. It is widely available in stores and on Amazon, reducing the stress of supply shortages.

Earth’s Best holds the Clean Label Project Purity Award and has been recognized by What to Expect and BabyCenter as a top organic formula. For parents who want a mid-range organic option without corn syrup that their baby will actually drink, this is the volume-to-value winner.

Why it’s great

  • Large 32 oz container with no corn syrup
  • Clean Label Project Purity Award certified
  • Widely available — reduces shortage anxiety

Good to know

  • Does not always dissolve completely without clumps
  • Some parents note a mild fishy smell from DHA
A2 Premium

3. Happy Baby Organic A2 Stage 1 Formula

A2 ProteinEU-Made
Happy Baby Organic A2 Stage 1 Formula$35.99as of Jul 3, 5:42 PM

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Happy Baby is the only USDA Organic formula that is also EU Organic certified and manufactured in Europe, where dairy regulations are stricter. It uses A2 beta-casein protein from pasture-raised cows, combined with a patented probiotic (B. lactis) and prebiotic (GOS) blend clinically shown to produce softer, more regular stools — a key advantage over standard organic formulas that lack live cultures.

Parents with reflux-prone babies report significant decreases in spit-up within days, and several noted that eczema symptoms cleared after switching. The DHA levels match the range found in breast milk (expert-recommended levels), supporting brain and eye development. The only consistent downside is availability — it can disappear from Amazon, requiring sourcing from Kroger or Target with shipping delays.

For parents prioritizing a probiotic-rich, A2-based formula made under stricter European standards, Happy Baby delivers digestion-specific benefits that many standard formulas cannot match.

Why it’s great

  • Only USDA + EU Organic certified formula available
  • Clinically studied probiotic and prebiotic blend
  • A2 protein reduces gas and fussiness significantly

Good to know

  • Stock is inconsistent on Amazon — plan ahead
  • More expensive per ounce than standard organic options
A2 Value

4. Baby’s Only A2 Organic Milk Infant Formula

No Palm OilSmall Batch
Baby's Only A2 Organic Milk Infant Formula$30.98as of Jul 3, 5:42 PM

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Baby’s Only offers A2 organic milk formula at a price point that undercuts most A2 competitors. It explicitly excludes corn syrup, palm oil, GMOs, and artificial growth hormones, using a proprietary organic fat blend designed for easy digestion. The formula is made in small batches at an Ohio facility, giving it a domestic manufacturing advantage for parents concerned about supply chain integrity.

Babies transitioning from breast milk or standard formula tolerate it well, with normal bowel movements and no visible gas or skin reactions. Some parents noted that it lacks added probiotics — a consideration for cesarean-born infants, who may benefit from external gut flora support. The company recommends adding probiotics separately if needed.

This is the entry-level premium option for parents who want the digestive advantages of A2 protein without paying the highest tier price. For families who prioritize “no palm oil” and small-batch US manufacturing, this hits a clean balance.

Why it’s great

  • A2 organic protein without corn syrup or palm oil
  • Small-batch production in Ohio for quality control
  • Most affordable A2 organic formula on the market

Good to know

  • No probiotics included — separate supplement may be needed
  • Occasional stock shortages reported by parents
Kosher Certified

5. Similac Advance Lamehadrin Infant Formula

Cholov YisroelBadatz
Similac Advance Lamehadrin Infant Formula$36.99as of Jul 3, 5:42 PM

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Similac Advance Lamehadrin holds exclusive Badatz certification in the US, making it the only formula available with Cholov Yisroel supervision, and it is kosher for Passover. This is not an organic formula, but it excludes palm olein oil to support excellent calcium absorption — a specific engineering choice that reduces a common constipation trigger. The DHA, ARA, and vitamin E blend supports brain and eye development.

Parents of newborns who need strict kosher certification report that this formula causes no stomach cramps or vomiting, with babies accepting it readily. The price on Amazon is often lower than local grocery stores, which adds practical value for families who buy in multi-can bulk. It is the #1 hospital-fed brand, giving it a trust advantage for parents already familiar with Similac’s hospital supply.

For families requiring Badatz certification, this is the easiest and most reliable option, combining mainstream pediatric trust with kosher-specific production oversight.

Why it’s great

  • Only Badatz-certified infant formula in the United States
  • No palm olein oil for better calcium absorption
  • Kosher for Passover — reliable year-round availability

Good to know

  • Not organic — contains corn syrup as primary carbohydrate
  • Premium pricing compared to standard Similac
Gentle Blend

6. Mama Bear Gentle Premium Baby Formula

Hydrolyzed ProteinNon-GMO
Mama Bear Gentle Premium Baby Formula$32.23as of Jul 3, 5:42 PM

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Mama Bear Gentle is the generic equivalent of Enfamil Neuropro Gentlease, made by Perrigo, which also produces most US store-brand formulas. It uses partially hydrolyzed proteins designed for babies prone to gas, crying, and fussiness. It contains DHA, choline, and a 2’FL HMO (human milk oligosaccharide) for immune support, at a price that is considerably lower than the name-brand equivalent.

Parents report smooth transitions from Enfamil with no digestive trouble, and the larger can (21.5 oz) provides good value over time. The formula includes corn syrup solids (common in comfort formulas) and palm oil, so it is not an “all-natural” ingredient leader, but the gentle protein breakdown makes it an effective option for colicky babies who need relief from standard formula.

For parents on a budget whose baby needs a gentler formula, this is the safest switch from name-brand sensitive lines. It is non-GMO, gluten-free, and free of artificial growth hormones — meeting middle-ground expectations for ingredient consciousness.

Why it’s great

  • Hydrolyzed proteins reduce gas and crying effectively
  • 2’FL HMO supports immune system development
  • Budget-friendly alternative to Enfamil Gentlease

Good to know

  • Contains corn syrup solids and palm oil
  • Not organic — conventional ingredient base
On-the-Go

7. Similac Organic Ready-to-Feed 6-Pack

RTF LiquidNo Mixing
Similac Organic Ready to Feed 6-Pack$70.14as of Jul 3, 5:42 PM

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Similac Organic Ready-to-Feed eliminates the need for mixing, measuring, or water — just open and pour. It is the only organic RTF option available in the US, USDA-certified organic, and free of corn syrup, palm olein oil, and growth hormones. Each 32-ounce bottle feeds multiple sessions, and the 6-pack provides substantial volume for travel or overnight feeds.

Parents report that babies who previously gagged or made faces at powder versions drink this easily. The liquid formulation dissolves completely — no clumps, no waiting for powder to settle. The convenience is the primary value; each bottle is heavier and generates more waste than powder, but when you need fast, mess-free feeding (hotels, airplanes, 3 AM wakings), RTF is unmatched.

Similac’s organic RTF uses a DHA, lutein, and vitamin E blend modeled after breast milk. This is a premium convenience product — not the most economical per ounce, but the right choice for families who prioritize ease and organic enforcement over cost.

Why it’s great

  • Only USDA organic RTF formula — ready to pour
  • No corn syrup, palm olein, or artificial growth hormones
  • Babies who reject powder formulas often accept this

Good to know

  • Significantly more expensive per ounce than powder
  • Heavy bottles — not ideal for diaper bag bulk

FAQ

What does A2 organic formula mean for my baby’s digestion?
A2 organic formula comes from cows that produce only A2 beta-casein protein rather than the more common A1 protein found in standard milk. Babies digest A2 protein more easily because it does not produce the BCM-7 opioid peptide that can cause inflammation, gas, and constipation. If your baby struggles with standard organic formula, switching to an A2 organic option often resolves these issues without needing a hypoallergenic formula.
Can I avoid corn syrup in baby formula completely?
Yes. Many premium and organic brands formulate with 100% lactose, the carbohydrate naturally found in breast milk. Bobbie, Earth’s Best (newer formulation), Happy Baby, and Baby’s Only all use lactose as the primary carbohydrate and explicitly avoid corn syrup solids and maltodextrin. Always check the ingredient list — if the first or second ingredient is “corn syrup solids” or “maltodextrin,” it is not a truly all-natural formula.

Final Thoughts: The Verdict

For most users, the best all-natural baby formula winner is the Bobbie Organic Combo Feeding Kit because it combines 100% lactose, hexane-free DHA, and a complete vitamin D supplementation kit in a single transparent package. If you want the proven digestive benefits of A2 protein with probiotics, grab the Happy Baby Organic A2 Stage 1 Formula. And for parents needing kosher Cholov Yisroel supervision, nothing beats the Similac Advance Lamehadrin.

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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product. As an Amazon Associate I earn from qualifying purchases.

CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED "AS IS" AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.