Guides › Low supply

When your own supply isn't enough

You are probably reading this at an unsociable hour with a baby on you, so the useful part goes first: before you buy anything from anyone, including us, there is a free phone number that might change the whole picture.

Who to call, and why we are telling you to call them

Let us be straight about our position. We are a marketplace for buying human milk. If you decide your supply cannot be improved, we stand to benefit. That is exactly why this section comes first and why it points at people with no such interest.

An IBCLC or a breastfeeding helpline volunteer will ask about things a website cannot see: how the baby is attaching, how often and how long they feed, weight and nappies, what your birth was like, what medication you are on. Very often something in that list is adjustable. The numbers are free, they are staffed by people who have heard your exact worry hundreds of times, and none of them are selling anything – they are all on our help page, with the UK and US lines separated out.

If you have already done this, and the answer came back settled, skip on. Nobody needs to be sent round that loop twice.

Not Enough Milk Global Health Media Project · the difference between a baby who is not getting enough and a supply that has genuinely failed, and what gets tried first. Filmed for low-resource settings, so the room is not yours – the assessment is the one a consultant will do. Tap to play – nothing loads from YouTube until you do

When it genuinely can't be fixed

Sometimes supply cannot meet a baby's need, and pretending otherwise is its own cruelty. The reasons a lactation consultant or doctor will explore include breast surgery and mastectomy, insufficient glandular tissue, some hormonal and thyroid conditions, retained placenta, certain medications, and a premature or difficult start that never quite recovered.

We list those so you know what the conversation will cover, not so you can decide which one is yours. Working that out is genuinely clinical, several of them look alike from the outside, and getting it wrong in either direction costs you. That is the one thing on this site we will not help you do.

What we can say is that a settled answer is information rather than a verdict on you, and it opens a different set of questions, which is the rest of this page.

The four options, plainly

• Formula, in whatever proportion suits you. Safe, regulated, and the route most families take. If it is doing the job, it is doing the job. What it can and cannot match is written up here, including the parts that do not flatter us.
• A milk bank, if your baby is premature or medically fragile. Screened and pasteurised, and the right answer when it is available. For a healthy full-term baby it usually will not be, but asking costs a phone call.
• Informal sharing. Donation networks match spare milk to families for nothing. It is a gift culture, so money is never mentioned, and everything rests on honesty between two people. The three routes compared are here.
• Buying. Another mother's surplus, at a price. Legal in the UK and US, and the option we are obviously invested in, so weigh what we say accordingly.

These mix. Almost nobody uses one exclusively, and the ratio changes month by month as a baby grows and a supply shifts. The mixture is a genuinely strong arrangement in its own right – the case for breast and bottle together is written up on the comparison page.

What topping up actually costs

This is where being honest is more useful than being encouraging. Bought milk runs $1.50–$4.50 an ounce (£1.20–£3.50 per fl oz). A baby taking 25–30 oz a day, 750–900 ml, fed entirely on bought milk, is several hundred pounds or dollars a week – which is why almost nobody does that.

Topping up is a different proposition. If your own supply covers most feeds and you are buying to close a gap of a few ounces a day, 100 ml or so, the arithmetic is ordinary rather than alarming, and it stays that way for months. Buy in larger, less frequent orders so the cost of frozen postage spreads, and buy locally where you can, which removes shipping altogether. The four routes and their real costs are here.

And plan for more than one seller. A surplus is the by-product of another family's life, and it ends when she weans – so find your second seller before you need her.

Where we stop

We write about mechanics, logistics, money and law. We do not diagnose low supply, we do not advise on medication or galactagogues, and we do not tell you how to feed your baby. Weight, jaundice, latch, medication and supply itself all belong with your midwife, health visitor, paediatrician or an IBCLC.

One more thing, briefly, because it matters more than the logistics. Grief about supply is real and it is not silly, and it hits people who are doing everything right. It also has almost nothing to do with whether your baby is fine. If it is sitting heavily on you, the same helplines will talk about that too, and they will not think you are wasting their time.

Common questions