04/25/2026
Did you know your baby's stomach is incredibly small in the first days of life? This is why they feed so often and why those tiny drops of colostrum are exactly what they need
β Day 1: Stomach is size of a marble (5ml)
β Day 3: About the size of a shooter marble (25ml per feed)
β Day 10: About a golf ball (45-60ml per feed)
This growth explains why babies start taking more at feeds, and why cluster feeding in the early days is so normal. Their tummies are growing, and your milk supply is adapting right alongside.
You're doing an amazing job nourishing your little one. Even the smallest amounts are powerful and perfectly designed for your baby πΏ
Did this surprise you? Which one shocked you the most - marble, shooter marble or golf ball? Share below, I'd love to hear!
Katelyn Peers is a Registered Nurse based in Langdon, Alberta, supporting families through newborn feeding with clear, evidence-based guidance that helps make sense of those early days.
From cluster feeding to milk supply and intake, she helps you understand whatβs normal, what to watch for, and how to move forward with confidence.
Book a session π https://katelyn-peers.themamacoach.com/booknow/
If you need support from anywhere else in the world, we can connect you with a nurse in your community π https://themamacoach.com/find-a-mama-coach/