Milk Supply Drops at 9–12 Months: What’s Normal and What’s Not
Have you noticed your milk supply dipping now that your baby is 9–12 months old? You might have seen other parents mention it online, or maybe you’ve noticed your baby nursing less as they explore new foods. While some change is normal as solids are introduced, a big drop in milk supply at this stage isn’t ideal. Here’s why.
Why does this happen?
Around 9–12 months, babies start eating more solids and often get so excited about food that they take less breast milk. On top of that, they’re becoming increasingly curious and easily distracted during feedings. They might pop off to watch the dog walk by, pull at your necklace, or crawl off mid-feed.
The problem is, breast milk (or formula) is still their primary source of nutrition for the entire first year because solids at this age are meant to complement milk, not replace it. Breast milk provides the majority of their calories, protein, healthy fats, and essential nutrients like iron and vitamin D that are critical for growth and brain development.
Why it matters
If your baby is filling up on solids or cutting feedings short because of distractibility, your supply can take a hit. Breastfeeding works on supply and demand: if milk isn’t being removed often enough, your body will make less. Over time, this can lead to a lower supply than your baby actually needs.
What to do
Prioritize breast milk first. Offer the breast or a bottle of pumped milk before solids so your baby fills up on milk first.
Limit distractions. Nurse in a quiet, dark space to help your baby focus.
Watch the ounces if bottle feeding.
Maintain frequent milk removal. If your baby is nursing less, consider adding a pumping session to keep supply steady as needed.
Stay consistent. Even as solids increase, keep breast milk as the foundation of their diet until they turn one.
When to get help
If you’re worried about your supply or your baby’s intake, reach out to an IBCLC. A lactation consultant can help you troubleshoot supply issues, make sure your baby is transferring milk well, and come up with a plan that fits your family’s needs.
Takeaways:
Slight drop in nursing is normal as solids increase, but breast milk should still be your baby’s main source of nutrition through 12 months.
Babies still need ideally 24–28 ounces of breast milk a day in the first year because it provides the calories and nutrients solids alone can’t.
Distractibility at this age is real and can impact feeding sessions, so try to minimize distractions to help them stay engaged as much as you can.
Supply and demand still applies: the more you remove milk, the more you’ll make.
Your milk is still incredibly important for your baby’s growth and development in this stage. Keeping supply steady now sets your baby up for a strong, healthy transition to toddlerhood.
