Hard Stools
How can I tell if my baby has hard stools?If your baby has hard stools, ask your baby’s doctor about switching to a formula such as Similac Advance, which does not contain palm olein oil, an ingredient that can harden stools in some babies.
Our unique palm olein oil-free fat blend
A key to stool consistency and frequency similar to breastfed infants.
Compared to infants fed a formula containing palm olein oil as the predominant fat source, Similac Advance:
- Helps provide a smooth transition from breast milk to formula feeding

Similac Advance Step 1 with Omega-3 and Omega-6
Similac Advance enriched with Omega-3 (DHA) and Omega-6 (ARA), the first and only formula with IMMUNOTIDE blend, is designed to support the normal development of your baby’s brain, eyes and immune system.
Learn more about Similac Advance Step 1 with Omega-3 and Omega-6
Get your free sample today by joining the Similac Welcome Addition Club
Similac has developed an innovation called IMMUNOTIDE blend. Exclusive to Similac, IMMUNOTIDE blend is a unique combination with levels of nucleotides similar to those found in breast milk.
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Similac with DigestEase formula is scientifically formulated to be easily digested by your baby, making feeding time comfortable—and comforting.
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We've added long-chain Omega-3 and Omega-6 fatty acids to provide your baby with a formula closer than ever to breast milk.
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