Our readers keep the lights on and my morning glass full of iced black tea. As an Amazon Associate, I earn from qualifying purchases.7 Best Infant Formula For Gas | Stop the Tummy Drama

That frantic 2 a.m. search for a formula that doesn’t cause back-arching, leg-pulling, and relentless crying is a special kind of parenting hell. Gas in infants often stems from the casein protein structure in standard formulas, the presence of intact lactose for sensitive systems, or an imbalance of gut bacteria. This guide cuts through the marketing noise to examine the specific protein profiles, prebiotic strains, and hydrolysation levels that actually determine whether a formula settles or fights back.

I’m Mohammad — the founder and writer behind ProteinJug. I’ve spent years digging into infant nutrition science, comparing hydrolyzed protein chains, A2 beta-casein markers, and DHA levels across hundreds of formula labels to separate genuine digestive relief from expensive placebos.

Every can listed here was selected for its specific anti-gas mechanism, and this buying guide ranks the best infant formula for gas on the market right now, from gentle A2 blends to extensively hydrolyzed hypoallergenic options.

How To Choose The Best Infant Formula For Gas

Not all “gentle” formulas work the same way. Some reduce gas by switching the protein source (A2 milk), others break the protein into tiny pieces (hydrolyzed), and some add specific prebiotics to balance gut flora. The wrong choice can worsen symptoms, so here are the specific specs that matter.

Protein Source: A2 vs. A1 Beta-Casein

Standard cow’s milk contains a mix of A1 and A2 beta-casein proteins. The A1 variant breaks down into a peptide called BCM-7, which can trigger inflammation, gas, and bloating in sensitive infants. A2-only formulas source milk from cows that produce only the A2 protein, eliminating this trigger. This is often the first-line switch for gas without a diagnosed allergy.

Hydrolysation Level: Partial vs. Extensive

Partially hydrolyzed formulas (marked “gentle”) have proteins partially broken down for easier digestion. Extensively hydrolyzed formulas (eHF) break proteins into tiny fragments for babies with cow’s milk protein allergy (CMPA). For severe gas accompanied by eczema, bloody stool, or failure to thrive, an eHF formula is the standard of care. For simple gas without allergic symptoms, partial hydrolysation or A2 is usually sufficient.

Prebiotic & Probiotic Blend

Formulas containing prebiotics (GOS/FOS) feed beneficial gut bacteria, while probiotics like Bifidobacterium lactis add live bacteria to help crowd out gas-producing pathogens. The specific strain matters — B. lactis has clinical data supporting reduced fussiness and softer stools. Avoid formulas that rely solely on prebiotics without a probiotic if your baby has taken antibiotics or was delivered via C-section, as gut flora diversity is lower.

Lactose Content

A common myth is that all gas is caused by lactose. In reality, primary lactose intolerance is rare in infants. However, secondary lactase deficiency can occur after a gut infection. Most gas-friendly formulas are lactose-based (lactose is the primary carbohydrate in breast milk), but a few sensitive options use corn syrup solids. Always try a lactose-containing gentle formula first unless there is clear evidence of lactose malabsorption.

Quick Comparison

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Model Category Best For Key Spec Amazon
Happy Baby Stage 1 A2 Premium A2 Organic Breastfeeding transition, gas reduction A2 beta-casein + GOS/FOS prebiotics Amazon
Baby’s Only A2 Organic Mid-Range A2 Organic Budget-friendly A2, USA-made A2 beta-casein, no palm oil Amazon
Happy Baby Stage 2 Organic Mid-Range Organic 6+ months, softer stools GOS/FOS prebiotics + probiotics Amazon
Bubs Essential Infant Budget-Friendly A2-ish Clean-label, prebiotics & probiotics Pre + probiotics, whole milk Amazon
Pepticate Hypoallergenic Premium eHF CMPA, severe reflux & gas Extensively hydrolyzed, GOS/FOS prebiotics Amazon
Extensive HA Hypoallergenic Premium eHF Milk allergy, lactose-free 100% whey, B. lactis probiotic Amazon
Mama Bear Premium Budget-Friendly Premium Daily value, 2’FL HMO 2’FL HMO, DHA, non-GMO Amazon

In‑Depth Reviews

Best Overall

1. Happy Baby Organics Stage 1 A2 Infant Formula

A2 ProteinGOS/FOS Prebiotics

This is the only USDA organic formula on the market that combines A2 beta-casein milk with its patented prebiotic blend. The 100% whey-to-casein ratio (60/40) mirrors breast milk, which helps avoid the tough, gas-inducing curds formed by standard A1 casein. Real-world reviews consistently mention a reduction in reflux and spit-up within days, even after other “sensitive” formulas failed. The A2 protein eliminates the BCM-7 peptide entirely, making this the most technically complete gas-reducing option available.

The formula is USDA and EU certified organic, made in Europe, and Clean Label Project certified for purity. It also contains DHA at levels recommended by experts for brain development, matching the breast milk benchmark. The 22.9-ounce can is a solid size, and the powder mixes without clumping. It is designed for ages 0-12 months, so no need to switch at 6 months unless you prefer the Stage 2 variant.

The only drawback is supply-chain inconsistency — some buyers report occasional shipping issues and difficulty finding it in stock at all times. An open can should be used within 4 weeks. The scoop is also slightly smaller than competitors, requiring 32 scoops to make a 32-ounce pitcher, which some parents find tedious. Despite these concerns, the A2 plus prebiotic combination makes this the most effective and cleanest starting point for gassy babies without a known allergy.

Why it’s great

  • Only USDA organic A2 formula with prebiotics
  • Clinically shown to support softer regular poops
  • 60/40 whey-to-casein matches breast milk
  • European-made, Clean Label Project certified

Good to know

  • Smaller scoop takes more scoops per pitcher
  • Inconsistent stock availability on Amazon
  • Not lactose-free (contains organic lactose)
Best Value A2

2. Baby’s Only A2 Organic Milk Infant Formula

A2 OrganicNo Palm Oil

Baby’s Only A2 Organic offers a proprietary fat blend that replaces palm oil with organic oils like coconut, sunflower, and canola. Palm oil is known to reduce calcium absorption and cause harder stools, which compounds gas issues. By eliminating palm oil and using A2 beta-casein, this formula addresses two major digestive pain points simultaneously. It is made in small batches in Ohio, giving an edge in quality control and traceability.

The formula contains iron, vitamin D, and vitamin E but does not include added prebiotics or probiotics. For many gassy babies, the switch from standard A1 protein to A2 milk alone is enough to resolve symptoms. The average 5-star reviews report “no gas or gut issues” and “normal bowel movements” even in low-birth-weight babies. It is also gluten-free and free from corn syrup, artificial colors, and growth hormones.

Some parents note that the can does not have a foil seal under the plastic lid, which is a minor design issue for freshness. The powder is also slightly thicker than some competitors, requiring a solid shake. Because it lacks prebiotics, babies with a history of constipation may still need a separate probiotic supplement. Overall, it is the most affordable A2 organic formula available, making it a strong entry-level choice for gas relief.

Why it’s great

  • Palm oil-free fat blend improves calcium absorption
  • Made in the USA in small batches
  • Affordable A2 organic option
  • No corn syrup, GMOs, or growth hormones

Good to know

  • No added prebiotics or probiotics
  • No foil seal under plastic lid
  • Powder can be slightly thicker to mix
Probiotic-Packed

3. Happy Baby Organics Stage 2 Infant Formula

ProbioticsUSDA Organic

This Stage 2 formula is tailored for babies 6-12 months and features the same patented prebiotic/probiotic blend as the A2 version, but with standard A1/A2 milk. The prebiotic galacto-oligosaccharides (GOS) are present at levels closest to breast milk among all organic brands, according to the manufacturer. The added probiotic Bifidobacterium lactis has clinical data supporting softer, more regular stools and reduced gassiness. Many parents report a dramatic cessation of spit-up when switching from Similac Sensitive.

It is USDA and EU certified organic, made in Europe, and contains DHA at levels meeting European standards. The formula has higher levels of calcium, iron, and iodine for the 6+ month developmental stage. Reviewers consistently mention the mild taste and less offensive smell compared to standard formulas. The powder mixes smoothly without clumps, which reduces bottle-prep frustration during night feeds.

The biggest complaint is the smaller scoop requiring 32 scoops to fill a 32-ounce pitcher, similar to the A2 variant. Some parents also note that the outer seal on the can occasionally breaks during shipping, causing powder leakage. The formula is not suitable for babies under 6 months due to the adjusted nutrient levels. If your baby is under 6 months, opt for the Stage 1 A2 version instead.

Why it’s great

  • Patented prebiotic blend closest to breast milk levels
  • Probiotic B. lactis for regular soft stools
  • European-made, USDA & EU organic certified
  • Mixes without clumps, mild taste

Good to know

  • Only for babies 6-12 months
  • Small scoop requires many scoops per pitcher
  • Outer seal can break during shipping
Clean Label

4. Bubs Essential Infant Formula

Pre+ProbioticsNon-GMO

Bubs Essential is an Australian-made formula that packs both prebiotics and probiotics into a whole cow’s milk base. It has won the Clean Label Project Award and the First 1,000 Day Promise standard certification, meaning it is rigorously tested for heavy metals and contaminants. The formula contains plant-based DHA and ARA from algae and fungi, not fish oil, making it suitable for families avoiding fish allergens. The whole milk base provides a creamier taste that many babies accept easily.

Users report that Bubs significantly reduces gas and colic-like symptoms, even in babies with food allergies. The prebiotic/probiotic combination supports regular bowel movements without constipation or diarrhea, which is critical for minimizing intestinal gas production. The formula is priced competitively for a clean-label product, and the 20-ounce can is a good starter size for families unsure if their baby will tolerate it.

Some parents note that the can is smaller than standard US brands, so it runs out faster. The formula also has a slightly different mixing ratio (1 scoop per 2 oz), but the scoop is consistent. There are occasional reports of the powder clumping if not shaken vigorously. While not a pure A2 milk formula, the whole milk base and dual prebiotic/probiotic support make it a strong mid-range choice for gas relief without breaking the bank.

Why it’s great

  • Clean Label Project & First 1,000 Day certified
  • Plant-based DHA/ARA (no fish allergens)
  • Prebiotics + probiotics for gut health
  • Australian-made, non-GMO

Good to know

  • Smaller can size may run out faster
  • Powder can clump if not shaken vigorously
  • Not a pure A2 milk formula
Best Hydrolyzed

5. Pepticate Hypoallergenic Infant Formula

Extensively HydrolyzedGOS/FOS Prebiotics

Pepticate is an extensively hydrolyzed formula (eHF) with 30+ years of use in Europe and is the only eHF manufactured by Nutricia (Danone) that includes a prebiotic fiber blend (GOS/FOS) designed to mimic breast-milk oligosaccharides. The proteins are broken down into tiny fragments to prevent an immune reaction in babies with cow’s milk protein allergy (CMPA). This is a medical-grade formula for severe cases where gas is accompanied by reflux, vomiting, eczema, or blood in the stool.

Parents consistently rate it as the best-tasting eHF, with a less bitter profile than competitors like Nutramigen or Alimentum. The 1:1 mixing ratio (1 scoop per 1 oz of water) is simpler than some other hydrolysates. Real-world reports show resolution of projectile vomiting, excessive spit-up, and diarrhea within days in babies who failed 9+ other formulas. It contains DHA, ARA, and nucleotides for complete nutrition up to 12 months.

The cost per ounce is high, placing this firmly in the premium tier. Some parents find it difficult to locate in stores, relying on Amazon with occasional subscription errors. It is also not suitable for babies without a diagnosed milk allergy, as the hydrolyzed protein is unnecessary and more expensive for simple gas.

Why it’s great

  • Best-tasting eHF according to parent ratings
  • GOS/FOS prebiotic blend mimics breast milk
  • Clinically effective for CMPA within days
  • Nutricia brand with 30+ years of European expertise

Good to know

  • Small can lasts under a week
  • High cost per ounce
  • Only needed for diagnosed CMPA
Lactose-Free Hype

6. Extensive HA Hypoallergenic Infant Formula

100% Whey eHFB. Lactis Probiotic

This Gerber Extensive HA formula uses 100% whey protein that has been extensively hydrolyzed and ultra-filtered to remove residual allergens. It is the only hypoallergenic formula on the market that includes the probiotic Bifidobacterium lactis, which supports digestive health and helps reduce gas from a gut microbiota perspective. The formula is also lactose-free, making it a targeted choice for babies with both CMPA and suspected lactose intolerance.

Users switching from Nutramigen report immediate reductions in stomach gurgling, wet burps, and crying during feeds. The formula smells less offensive than other hydrolysates, and it mixes with less foaming. The probiotic content helps soften stools, which is a common issue with standard eHF formulas. Many parents note that their babies sleep better and show less general fussiness after the switch.

The bitter taste, characteristic of all extensively hydrolyzed formulas, remains an issue — some babies refuse it initially, requiring a gradual transition over several days. The can size is very small (14.1 oz), making it one of the fastest-to-empty options on this list. One batch complaint of extreme bitterness suggests occasional quality inconsistency. As with Pepticate, this formula is overkill for simple gas without CMPA symptoms.

Why it’s great

  • Only eHF with B. lactis probiotic
  • Lactose-free for combined intolerance
  • Reduces gurgling and wet burps quickly
  • Less foamy and less smelly than Nutramigen

Good to know

  • Bitter taste may require gradual transition
  • Small 14.1 oz can runs out fast
  • Not suitable for simple gas without allergy
Budget Premium

7. Mama Bear Premium Infant Formula

2’FL HMONon-GMO

Amazon’s Mama Bear Premium formula aims to match the nutritional profile of Enfamil NeuroPro at a significantly lower price point. It includes 2’FL HMO (human milk oligosaccharide), which is the most abundant prebiotic in breast milk and supports gut immunity and bacterial balance. Combined with expert-recommended DHA for brain development and choline, it is a well-rounded formula for general use.

The non-GMO certification and 33.92-ounce can provide excellent value per ounce. The 2’FL HMO content is a genuine differentiator at this price tier, as most affordable formulas skip HMOs entirely. For babies whose gas is mild and not linked to a specific protein intolerance, the HMO can help cultivate a healthy gut environment that reduces gas production over time.

Several reviews note that babies transitioning from Enfamil did not tolerate it well, with reports of increased spit-up. This suggests the protein structure or fat blend differs enough to cause reactions in sensitive stomachs. The formula also lacks probiotics, relying solely on the prebiotic HMO. Use it only for babies who have no history of formula sensitivity and whose gas is mild and intermittent. It is not a dedicated gas-relief formula, but a strong value pick for the HMO benefit.

Why it’s great

  • Contains 2’FL HMO at a budget price
  • Large 33.92 oz can delivers great value
  • Non-GMO with expert-recommended DHA

Good to know

  • Some babies transition poorly from Enfamil
  • Lacks probiotics for gut diversity
  • Not designed specifically for gas relief

FAQ

What is the difference between A2 formula and standard formula for gas?
Standard formula contains A1 beta-casein, which releases BCM-7 during digestion — a peptide linked to inflammation and gas. A2 formula uses milk from cows that produce only the A2 protein, eliminating BCM-7. Many gassy babies improve within days of switching to A2, even without moving to a hydrolyzed formula.
Should I choose a lactose-free formula if my baby is gassy?
Primary lactose intolerance is extremely rare in infants. Most gassiness comes from protein sensitivity, not lactose malabsorption. Lactose is the primary carbohydrate in breast milk and supports healthy gut flora. Only switch to a lactose-free formula if there is clear evidence of lactose malabsorption, such as watery diarrhea with a pH below 5.5.
How quickly should I see results after switching formulas for gas?
For protein-related gas (A1 to A2), improvement often occurs within 24-48 hours as the BCM-7 peptide clears from the system. For allergy-based symptoms requiring eHF, it may take 3-7 days for gut inflammation to subside fully. Some babies need a gradual transition over 4-7 days to accept the taste and texture of a new formula.
Can probiotics in formula really help with gas?
Yes, specifically Bifidobacterium lactis has clinical data showing reduced crying time and improved stool consistency in gassy infants. Prebiotics (GOS/FOS) feed existing gut bacteria, while probiotics add live bacteria. For C-section babies, probiotics are even more important since they miss the vaginal microbiome transfer that builds early gut diversity.

Final Thoughts: The Verdict

For most users, the best infant formula for gas winner is the Happy Baby Organics Stage 1 A2 because it combines the A2 protein fix with a clinically studied prebiotic blend and strict organic certification all in one clean package. If you want a budget-friendly A2 option, grab the Baby’s Only A2 Organic. And for severe gas caused by cow’s milk protein allergy, nothing beats the medical-grade relief of the Pepticate Hypoallergenic formula.