By Jeannie Noble, Registered Dietitian and founder of Baby Babble Granola
Search "how to increase milk supply" and you'll find no shortage of teas, snacks, and supplements — but it's easy to lose sight of what's actually driving supply underneath all the product options. Milk production comes down to physiology first, and the research-backed factors that move the needle are often more foundational than any single product alone.
I'm Jeannie, a Registered Dietitian and a mom myself. Here are 5 ways to support your milk supply that are grounded in how lactation actually works — and where nutrition fits into that picture.
1. Eating Enough Calories
Milk production takes real energy — research generally estimates breastfeeding requires several hundred additional calories per day, on top of your baseline needs. Chronic under-eating (common in the postpartum haze of not having time to sit down and eat) can suppress supply over time. This doesn't mean tracking or restricting — it means making sure you're actually getting enough food in, even when the day feels like it's working against you.
Practical tip: Keep grab-and-go, calorie-dense snacks within reach wherever you nurse or pump most — a nightstand, the couch, your pump bag. This is exactly why I formulated Baby Babble Granola the way I did — it's nutrient-dense by design, so a single handful is doing real nutritional work, not just filling time between feeds.
2. Balancing Your Macronutrients
Calories matter, but so does what they're made of. Adequate protein supports milk synthesis, healthy fats support both your energy and the fat content of your milk, and complex carbohydrates help keep your energy steady rather than crashing between feeds. A snack or meal with a mix of all three tends to hold you over better than one built around a single macronutrient.
Practical tip: Pair something with protein and fat (nuts, yogurt, eggs) with a carbohydrate source (oats, fruit, whole grain toast) rather than reaching for carbs alone. I built Baby Babble Granola around this exact balance — protein and healthy fats from nuts and seeds, complex carbs from oats — so you're getting all three macronutrients in one bite instead of having to assemble it yourself on three hours of sleep. One serving has as much protein as an egg, without needing to crack, cook, or clean up anything.
3. Staying Hydrated
Breast milk is roughly 87% water, and dehydration can affect how you feel. Many moms notice they're much thirstier than usual while breastfeeding — that's your body's way of signaling increased fluid needs. The challenge is usually less about noticing the thirst and more about actually stopping to drink when you're in the middle of a feed or juggling everything else going on.
Practical tip: Keep a water bottle wherever you feed or pump, so drinking becomes tied to a habit you're already doing multiple times a day.
4. Supply and Demand
Milk production works largely on a supply-and-demand basis — more frequent and effective removal of milk (through nursing or pumping) signals your body to produce more. This is one of the most well-established mechanisms in lactation physiology.
That said, this looks different for every mom and baby. Age, feeding patterns, medical history, and individual physiology all factor in, and what's "frequent enough" varies a lot. If you're concerned about supply, a lactation consultant (IBCLC) can give you personalized guidance based on your specific situation (check with your insurance, as they often cover this!).
5. Supporting Your Let-Down (Skin-to-Skin & Oxytocin)
Milk release relies on the let-down reflex, which is triggered by oxytocin — a hormone that responds strongly to closeness, touch, and even sight or sound of your baby. Skin-to-skin contact before or during feeding can help. If you're exclusively pumping or away from your baby, looking at photos or videos of your baby while pumping can trigger a similar response for some moms.
Practical tip: Keep a favorite photo or short video of your baby pulled up on your phone for pumping sessions when they're not with you.
A Note on Sleep and Stress
Sleep and stress do play a role in milk supply — but if you're a new mom, "just get more sleep and relax" probably sounds out-of-touch. That advice is true and also often not realistic, so take it as permission to protect what rest you can get rather than another thing to feel behind on.
The Takeaway
Milk supply is influenced by a combination of factors — calories, macronutrient balance, hydration, feeding frequency, and hormonal response — working together rather than any single food or supplement. If you're consistently concerned about your supply, an IBCLC can offer guidance tailored to you specifically.
Nutrition is the foundation you have the most control over day to day, which is exactly why I formulated Baby Babble Granola — nutrient-dense, balanced across all three macronutrients (protein, healthy fats, and complex carbs), and built to make getting adequate nutrition in easy on the days you barely have a free hand, let alone time to cook. Shop Baby Babble Granola
Jeannie Noble is a Registered Dietitian and the founder of Baby Babble Granola, a fenugreek-free lactation granola developed for breastfeeding and postpartum moms. Baby Babble Granola is available at babybabblegranola.com.