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What formula is best for my baby with reflux?

There is no single 'best' formula for reflux. For most healthy babies, no formula change is needed; if one is tried, it's usually a thickened/anti-regurgitation formula or, if a milk allergy is suspected, a hydrolyzed formula, always guided by your doctor.

Canadian guidance stresses reassurance first, since most infant reflux is normal and resolves on its own by the time babies eat solids.

Strength of evidence

Good

Based on Canadian and US pediatric society guidance plus supporting systematic reviews; direct head-to-head RCTs comparing specific commercial formulas are limited.

What the evidence says

Most spit-up in babies is normal reflux (GER), not a disease, and it usually gets better on its own by the time your baby starts solids. Canadian guidance says only a doctor can tell if it's actually GERD, and reassurance is often all that's needed.

If your baby's doctor thinks a formula change could help, there are two main options. One is a thickened or 'anti-regurgitation' (AR) formula, which can reduce visible spit-up, usually tried for 2 to 4 weeks. The other is a hydrolyzed (broken-down protein) formula, tried for 2 to 4 weeks if a cow's milk protein allergy is suspected as a cause of symptoms.

Importantly, thickened formula reduces how much comes back up but doesn't necessarily reduce fussiness or discomfort, so it's not a guaranteed fix for a cranky baby. Soy formula is not recommended for reflux in Canada.

The safest approach is to talk with your baby's doctor before switching formulas, since they can check for other causes and recommend a formula and thickening method that's nutritionally appropriate and safe for your baby.

Sources

✓Reviewed by CH, MD, FRCPC

Reviewed by a specialist physician certified by the Royal College of Physicians and Surgeons of Canada, who has read this answer against the sources listed above and confirmed it reflects them. That is not medical advice about your child. How we review

Answer checked July 29, 2026

Educational information only. Not medical advice, not a diagnosis, and no doctor-patient relationship is created by using this. Founded Parent has not examined your child and does not know their history, so this may not apply to you. In an emergency, call your local emergency number. What Founded Parent cannot do

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