When choosing formula for preterm babies, look for formulas designed for premature post-discharge needs or brain and growth support. This guide highlights five options suited for different situations, from ready-to-feed convenience to powder formulas with strong catch-up growth. Best for families seeking established post-discharge formulas and ready-to-use options, these choices emphasize growth, immune support, and digestibility for premature infants.
Summary table of selected products
| Product | Why it’s a fit | |
|---|---|---|
| Similac NeoSure Premature Post-Discharge Infant Formula, 22.8-oz (Pack of 4) | Powder | Top post-discharge option from a NICU-fed brand; strong catch-up growth. |
| Similac NeoSure Premature Post-Discharge Infant Formula, 13.1-oz (Pack of 6) | Powder | Compact can size for caregivers who want more frequent refills; reliable preemie support. |
| Enfamil NeuroPro EnfaCare High Calorie Premature Formula, 13.6 Oz | Powder | Milk-based with DHA and immune support, designed for premature needs. |
| Similac 360 Total Care Infant Formula, 36-oz (Pack of 3) | Powder | 5 HMOs prebiotics blend, closest prebiotic profile to breast milk for broad support. |
| Enfamil NeuroPro Gentlease Ready-to-Feed, 2 Fl Oz (4 Pack) | Ready-to-Feed | Convenient, gentle option with DHA and HuMO6 blend, helpful for on-the-go feeding. |
Similac NeoSure Premature Post-Discharge Powder 22.8 oz (Pack of 4)

Product overview: NeoSure is positioned as the leading preterm post-discharge formula from the NICU’s top brand. It emphasizes excellent catch-up growth with visible gains in weight, length, and head circumference compared to term infant formula.
Best for: newborns recently discharged from NICU care who need consistent catch-up growth, especially families already familiar with Similac NeoSure formulations.
Why selected: This option aligns with preemie-specific growth goals and is widely used in clinical settings for post-discharge nutrition continuity.
Caution: As a powder, accuracy in preparation is essential to ensure correct nutrient delivery; follow mixing instructions carefully to avoid under- or over-dilution.
Similac NeoSure Premature Post-Discharge Powder 13.1 oz (Pack of 6)

Product overview: This smaller can size offers a convenient option for caregivers needing more frequent small portions while supporting post-discharge catch-up growth.
Best for: families who prefer a smaller can for precise feeding schedules or who travel frequently with preemie nutrition needs.
Why selected: Consistent with NeoSure’s post-discharge goals and backed by the same brand credibility as larger cans.
Caution: Some caregivers may find frequent can openings necessary; ensure proper storage to maintain formula freshness.
Enfamil NeuroPro EnfaCare High Calorie Premature Formula 13.6 Oz

Product overview: A milk-based option with DHA and immune-supporting nutrients. Marketed for catch-up growth and immune support in premature infants, available in powder form for plan-ahead feeding.
Best for: families seeking a high-calorie premature option with brain-building nutrients and a focus on immune health.
Why selected: Enfamil’s formulation targets immune and growth development, pairing well with a premature infant’s needs after NICU discharge.
Caution: Read preparation directions carefully to ensure the intended nutrition densities are met for your baby’s age and weight category.
Similac 360 Total Care Infant Formula with 5 HMOs, 36-oz Powder (Pack of 3)

Product overview: This formula features a blend of five HMOs intended to mimic the prebiotic profile of breast milk. It emphasizes immune support, brain development, and digestive health for overall “360 whole-baby” support.
Best for: parents seeking a comprehensive prebiotic blend to support gut health and immune function alongside growth goals.
Why selected: The 360 Total Care line represents a broad, growth-forward option with a focus on prebiotic diversity similar to breast milk.
Caution: While beneficial, HMOs are one component of overall nutrition; ensure the formula aligns with your baby’s neonate requirements and pediatric guidance.
Enfamil NeuroPro Gentlease Ready-to-Feed 2 Fl Oz (4 Pack)

Product overview: Ready-to-Feed format designed for easy travel or nighttime feeding. Gentlease focuses on gentle digestion with DHA for brain development support.
Best for: families needing a portable, mess-free option during daytime trips, daycare, or during night care when quick preparation is preferred.
Why selected: Gentlease is a trusted choice for fussiness and digestion concerns, offering predictable preparation without mixing steps.
Caution: Ready-to-feed kits require careful storage after opening and should be consumed within recommended timeframes to maintain quality.
Buying Guide: Key Considerations For Premature Infant Formula
Premature infant nutrition requires careful selection to support growth, digestion, and development. Consider these factors when choosing a formula:
- Discharge status: Post-discharge formulas (like NeoSure) are formulated for infants leaving the NICU and often focus on catch-up growth.
- Calorie density: Some high-calorie options support more rapid growth for smaller premies; ensure calorie levels align with your pediatrician’s guidance.
- Protein and fat composition: Proteins and fats should be balanced for easy digestion and growth; some formulas emphasize easy-to-digest proteins.
- Immune and prebiotic support: HMOs and DHA can support immune function and brain development; assess if a formula includes these benefits.
- Format and convenience: Powder, ready-to-feed, and travel-friendly options suit different caregiving routines and settings.
- Allergen considerations: Most formulas are dairy-based; check for potential allergies or sensitivities and consult a clinician for alternatives.
- Storage and shelf life: Proper storage preserves nutrients; consider caregiver schedules and access to refrigeration.
Frequently Asked Questions
- What is a post-discharge formula for preemies? A post-discharge formula is designed for premature infants transitioning from NICU care to home feeding, supporting catch-up growth and development.
- Are ready-to-feed formulas better for preemies? Ready-to-feed formulas offer convenience and consistent preparation, which can be beneficial for caregivers managing nighttime and travel needs.
- What nutrients are most important for preterm babies? Key nutrients include calories, protein for growth, DHA for brain development, vitamins and minerals for immune support, and prebiotics for gut health.
- How should I choose between NeoSure and Enfamil EnfaCare? NeoSure is a premier post-discharge option from a NICU-based brand, while EnfaCare emphasizes immune support and high-calorie needs. The choice depends on your baby’s growth trajectory and pediatric guidance.
- Can I switch formulas if my baby seems fussy? Formula changes should be guided by a pediatrician. If fussiness or digestion issues arise, consult a clinician before switching.
- Is it okay to mix different formulas? Mixing different formulas is generally discouraged unless advised by a healthcare professional, as it can affect nutrient balance and digestion.