Low Milk Supply: Myths, Facts, And Evidence-Based Solutions

If you're worried your baby isn't getting enough milk, you're not alone. Low milk supply is one of the most common concerns I hear from new mums — and one of the most misunderstood.

The truth is, true low supply is less common than you might think. But the worry? That's very real. And when you're exhausted, your nipples are sore, and everyone around you has a different opinion about what you should do, it's hard to know what's actually happening.

Let's cut through the confusion together. I'll walk you through what low supply really looks like, what doesn't actually mean you have low supply, and what you can do if your supply genuinely needs support.

The Myths That Make You Worry (When You Don't Need To)

There's so much misinformation floating around about milk supply. Here are some of the most common myths I hear — and why they're not reliable indicators of how much milk you're making.

Myth 1: "My breasts feel soft, so I must not have enough milk."

The reality: After the first few weeks, it's completely normal for your breasts to feel softer. That doesn't mean you've lost your supply — it means your body has adjusted to your baby's needs and isn't making excess milk anymore. This is actually a good sign that your supply is regulating.

Myth 2: "My baby feeds all the time, so I must not have enough milk."

The reality: Frequent feeding is normal, especially in the early weeks. Babies don't just feed for hunger. They feed for comfort, connection, and regulation too. Cluster feeding in the evenings is also completely typical and doesn't mean your supply is low.

Myth 3: "I can't pump much milk, so my supply must be low."

The reality: Pumping output is not a reliable measure of your milk supply. Your baby is far more efficient at removing milk than any pump. Some mums can barely pump an ounce but are exclusively breastfeeding without any issues.

Myth 4: "My baby is fussy at the breast, so there must not be enough milk."

The reality: Fussiness at the breast usually has nothing to do with your supply. Here are the two most common reasons:

Reason #1: Your baby doesn't have a stable position

When your baby doesn't fit into your body in a way that's comfortable and effective, they can't deeply relax while feeding. If the breast is blocking their nostrils, they may feed well when alert — but as they relax and their neck muscles soften, airflow stops, and they'll pull back suddenly to breathe.

Reason #2: Your baby doesn't want more milk right now

Sometimes your baby is fussing because they want a change of sensory experience — not more milk. In the early months, their brain is developing rapidly in response to what they see, feel, and experience. Sometimes they're simply asking for variety: a different position, a new view, or movement that helps them feel regulated.

Myth 5: "I need to supplement with formula because my baby lost weight after delivery."

The reality: It's normal for babies to lose up to 7–10% of their body weight in the first few days. What matters is that they regain their weight by around two weeks. If weight loss is within normal range and your baby is feeding well, supplementation may not be necessary.

What Actually Indicates Low Milk Supply

So how do you know if you genuinely have low supply? Here are the evidence-based signs to look for:

1. Insufficient wet and dirty nappies

After the first week, your baby should have:

• At least 6–8 wet nappies in 24 hours (heavy enough that you can feel the weight)

• At least 3–4 dirty nappies per day in the first few weeks (though this can decrease after 6 weeks)

If your baby consistently has fewer nappies than this, it's worth getting support.

2. Poor weight gain

If your baby isn't gaining weight appropriately after the first two weeks, or continues losing weight beyond the expected initial drop, this is a red flag that needs attention.

Your baby should regain their weight by around two weeks and then gain approximately 155g to 250g per week in the first few months.

3. Baby seems lethargic or weak

A well-fed baby should be alert during awake periods and have good muscle tone. If your baby seems unusually sleepy, floppy, or difficult to rouse for feeds, this could indicate they're not getting enough milk.

4. Persistent hunger cues even after feeding

If your baby is constantly rooting, sucking on their hands, and showing hunger cues immediately after a full feed — and this pattern continues consistently — it may be worth investigating further.

What Can Cause Low Milk Supply?

If you do have low supply, it's helpful to understand why. Here are some of the most common causes:

Infrequent or ineffective milk removal

Your body makes milk based on demand. If your baby isn't feeding frequently enough, or if they're not latching deeply enough to remove milk effectively, your supply will respond by decreasing.

This can happen if:

• Baby has positional instability at the breast, which means not enough milk is being removed

• You're using a feeding schedule rather than feeding responsively

• Your baby is very sleepy and not waking for feeds

Hormonal or medical factors

Certain conditions can affect milk production, including:

• Polycystic ovary syndrome (PCOS)

• Thyroid disorders

• Previous breast surgery or trauma

• Retained placenta

• Postpartum haemorrhage

If you suspect a medical cause, it's important to speak with your doctor or an IBCLC.

Incorrect flange size or pumping technique

If you're relying on pumping and your flange doesn't fit properly, or your pump settings aren't right for you, you may not be removing milk effectively — which can signal your body to make less.

Evidence-Based Solutions to Support Your Milk Supply

If you've identified that your supply genuinely needs support, here's what actually works:

1. Increase milk removal

The most effective way to build supply is to remove milk more frequently and effectively. This can mean:

• Feeding your baby more often (aim for around 12 times each breast in 24 hours)

• Offering both breasts at each feed

• Adding in short pumping sessions after feeds if needed

2. Improve latch and positioning

A shallow latch means your baby isn't removing milk efficiently, which affects your supply. Working on positioning adjustments — even small micromovements — can make a big difference.

During a consultation, I observe the feed and guide you through adjustments so you can replicate them on your own. I also take reference photos from different angles so you have a visual guide to refer back to.

3. Support your own wellbeing

Your body needs fuel to make milk. Make sure you're:

• Eating enough (breastfeeding burns around 500 extra calories per day)

• Staying hydrated

• Resting when you can

• Asking for help so you're not running on empty

4. Consider galactagogues (with caution)

Galactagogues are substances that may help increase milk supply, such as fenugreek, blessed thistle, or prescription medication like domperidone.

However: these should only be used after you've addressed milk removal and latch issues, and ideally under the guidance of an IBCLC or doctor. They're not a magic bullet, and they won't work if the root cause isn't addressed.

When to Get Help

You don't have to figure this out alone. If you're concerned about your milk supply, getting personalised support can help you understand what's actually happening — and what to do about it.

Reach out if:

• Your baby isn't gaining weight appropriately

• You're seeing fewer wet and dirty nappies than expected

• Feeding feels painful or your baby seems frustrated at the breast

• You've tried increasing feeds but still feel worried

• You're feeling overwhelmed and need reassurance from someone who gets it

During a postnatal breastfeeding consultation, I'll assess the full picture — your baby's latch, your milk removal, your baby's sensory needs, and your own wellbeing — so we can find a solution that works for your unique situation.

You'll also have me in your corner for a full week afterward via WhatsApp for follow-up support, clarification, and reassurance.

You're Not Failing

If you're worried about your supply, please hear this: you're not failing. You're paying attention, you're trying to do what's best for your baby, and you're looking for real answers.

That matters. And it's exactly why I'm here.

Whether your supply is genuinely low or you just need reassurance that everything is okay, I'm here to help you make sense of it all — without judgement, without pressure, and with practical steps that actually fit your life.

Get in touch via WhatsApp and let's work through this together.