If you’ve ever stood in the vitamin aisle wondering whether your little one needs a daily gummy or drop, you’re not alone. It’s one of the questions we hear most from Katy families — and the honest answer is: it depends on your child. Here’s what we want every parent to know.
Right After Birth: Vitamin K
Every newborn is naturally low in Vitamin K, which helps blood clot properly. Without it, babies face a much higher risk of dangerous bleeding, including in the brain. That’s why we give a one-time Vitamin K shot at birth — it isn’t absorbed well when taken orally, and this single injection essentially eliminates that risk.
The First Year: Vitamin D and Iron
A few nutrients deserve extra attention during infancy:
- Babies who are breastfed, on expressed breastmilk, combo-feeding, or drinking less than about 30 oz of formula a day need 400 IU of Vitamin D daily until their first birthday.
- Breastfed babies typically need an iron-containing multivitamin starting around 4–6 months, when their birth iron stores begin to run low — continuing until they’re eating enough iron-rich solids.
- If mom follows a vegan or vegetarian diet while breastfeeding — or if your child does once eating solids — a daily multivitamin with B12 and iron is important, since these come mainly from animal products.
We Check In, Too
We screen every child for anemia at their 1- and 2-year visits, so we can catch and treat any deficiency early — and talk through next steps together if supplementation is needed.
The Bottom Line
For most healthy kids eating a varied diet, daily vitamins aren’t necessary — and we’d always rather target a specific nutrient your child actually needs than reach for a blanket multivitamin. Every child is different, and some conditions call for tailored supplementation, so this is always a conversation worth having at your next well visit.
Written by Dr. El-Loubani