The Best Baby Formula for Health-Conscious Parents

Brought to you in collaboration with ByHeart. We only partner with brands that reflect our values and standards, ensuring content that benefits you.

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If you’re a breastfeeding mom considering formula (or whether to combo-feed, supplement, or fully transition), you’ve probably found the infant formula aisle to be overwhelming. With so many brands claiming to be “gentle,” “organic,” or “closest to breast milk,” how do you know which one actually delivers?

In this comparison, we’ve looked at five popular formulas:

Here’s how they stack up on what truly matters: ingredient quality and clinical proof. Here’s what health-conscious parents need to know.

Quick Verdict

ByHeart is our top choice for its clinically backed formula and whole milk base.

	ByHeart	Bobbie	Enfamil	Similac	HappyBABY
Ingredient Cleanliness	Clean label; no palm oil, soy, or corn syrup	Organic; no palm oil, soy, or corn syrup	Palm oil	Soy oil	Soy oil; skim milk
Milk Base	Organic whole milk	Organic whole + skim milk blend	Skim	Skim	Skim
Breast Milk Science	Patented protein blend; clinically proven*	Breast milk–like; no trial yet	Standard proteins	Standard proteins	A2 proteins in some formulations
Our Rating	★★★★★	★★★★☆	★★★☆☆	★★½	★★★☆☆

*vs a leading infant formula

1. Ingredient Transparency

Today’s parents want fewer additives, and ingredients they recognize. Yet most formulas contain processed oils, synthetic nutrients, or sweeteners like corn syrup.

ByHeart is made with organic grass-fed whole milk, and no palm oil, soy, or corn syrup.
Bobbie Whole Milk uses organic whole milk fat and excludes palm oil, soy oil, and corn syrup.
HappyBABY A2 is organic but relies on skim milk and soy oil.
Similac 360 avoids palm oil, but includes soy.
Enfamil Enspire adds synthetic milk fat globule membrane (MFGM) but contains palm oil.

With a shorter ingredient list and whole milk as the base, ByHeart is a clear choice for parents avoiding certain ingredients. It’s also blended in small batches to preserve the ingredient integrity, including broken down proteins for gentle digestion, eliminating the need for a separate ‘gentle’ formula.

*According to Clean Label Project, Purity Award

2. Whole Milk vs. Skim

Breast milk is rich in full fats that support brain development and metabolism. Many formulas strip these out by using skim milk and replacing the fat with processed oils.

ByHeart and Bobbie Whole Milk formulas avoid palm oil and are made with organic whole milk, supporting better nutrient absorption.
HappyBABY, Similac, and Enfamil still rely on skim milk blended with vegetable oils.

Both ByHeart and Bobbie Whole Milk formulas use organic whole milk, which more closely aligns with breast milk’s fats.

3. Closeness to Breast Milk

Not all proteins are created equal. Breastmilk’s unique protein blend—whey and casein in specific ratios—makes it easy to digest and helps optimize nutrient absorption.

ByHeart features a patented protein blend that includes alpha-lac and lactoferrin, the two most abundant proteins in breast milk.
Bobbie has a 60:40 whey-to-casein ratio.
HappyBABY has one of their formulas made with A2 protein.
Similac and Enfamil use standard proteins.

ByHeart’s clinically backed formula leads in similarity to breast milk, while Bobbie shows promise without yet having clinical proof.

4. Clinically Proven Benefits

Many baby formulas claim to reduce spit-up or support easy digestion, but what’s the proof?

ByHeart is backed by a published clinical trial supporting:
- Less spit-up
- Softer stools
- Enhanced nutrient absorption*
- Immune and brain health support
Bobbie has ongoing clinical trials, but no published results yet.
HappyBABY relies on parent testimonials.

For data-driven parents, ByHeart stands out as the only formula with rigorous clinical evidence, earning 2024’s ‘Best Formula for Breastfed Babies’ by Babylist.

*vs a leading infant formula

The Verdict: Which Formula Should You Choose?

For health-conscious parents, ByHeart stands out as the overall winner, merging breast milk science and whole-food ingredients into one clinically backed formula, while Bobbie remains a strong, EU-style contender.

Still unsure? ByHeart provides a risk-free promise: if your baby doesn’t love ByHeart, your first order is free. Get ByHeart Now, because every baby deserves the best, and every parent deserves peace of mind.