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Low Milk Supply: How to Tell If It's Real and Boost It

Medically Reviewed by Michelle Roth, BA, IBCLC
Updated
Barely filling the bottle? Most 'low supply' isn't, and real dips are fixable.

Do you worry your baby isn’t getting enough to eat? You aren’t alone. Worry over milk supply is one of the top reasons moms stop breastfeeding, and most of the time the milk is actually there.

I remember the panic of pumping and seeing barely an ounce, sure my body was failing my baby. But low supply is far more often a misread of how breastfeeding works than a real shortage. And when supply truly is low, it can almost always be built back up.

I found ways to boost my output without losing my mind. Here is how you can too.


Is Your Milk Supply Really Low?

Before you panic-buy lactation cookies or pump until you are sore, you need to determine if your supply is actually low. It is common to confuse normal breastfeeding behavior with a lack of milk.

However, true low supply does exist. It can stem from management issues or underlying medical conditions. If you suspect a medical issue, consult a lactation professional immediately.

Some perspective helps here. A 2022 systematic review found that 10 to 25 percent of mothers feel they are not making enough milk, yet true, physical low supply affects only about 10 to 15 percent (1). The worry is far more common than the actual shortage.

Here is how to tell the difference between a dip in supply and false alarms.

How Much Milk Should You Be Producing?

 

If your milk ducts are playing hooky, your baby will show specific signs. Forget the pump output for a second; look at the baby.

Watch Your Baby’s Weight Gain

Weight gain is the most reliable indicator of milk transfer. If your baby isn’t gaining weight or drops percentiles rapidly, you may have a supply issue. Note that it is normal for newborns to lose weight in the first few days, provided they gain it back within two weeks.

Generally, your baby should gain about an ounce a day in the first month. After that, expect about one to two pounds per month until the six-month mark. Your pediatrician will track this closely at check-ups.

Watch for Indications in Their Poop

It sounds gross, but diaper contents tell the truth. Your breastfed baby should have at least 3 bowel movements per day the size of a US quarter or larger during the first month.

After four to six weeks, frequency often drops. You may see fewer dirty diapers, sometimes only one a week. This is normal for older breastfed babies.

The color should be mustard yellow, often seedy and loose. If you see dark, scanty stools after the first week, consult your doctor.

Make Sure Your Baby is Having Enough Wet Diapers

What goes in must come out. Your baby should have 6 to 9 wet diapers every 24 hours. If diapers are dry or the urine is dark and concentrated (like apple juice), your baby needs more milk immediately.

Monitor Their Mood and Appearance

Trust your gut. Does your baby look healthy? Is their skin hydrated? Are they alert when awake?

If your baby is lethargic, overly fussy at the breast, or never seems satisfied, it could signal low supply (2). However, fussiness alone is not a diagnosis; look for it alongside weight and diaper issues.

Do You Really Have a Low Supply or Do You Have False Expectations?

Many women believe they have low supply because they don’t feel “full” or their baby acts hungry. Often, these are normal developmental stages.

It is frustrating to pump for 20 minutes and get less than 2 ounces, but that can be a normal amount depending on your baby’s age and nursing habits.

Here are common “false alarms” that trick moms into worrying.

Your Baby Seems Hungrier Than Usual

If your baby suddenly wants to eat every hour, it doesn’t mean you ran out of milk. It likely means they are having a growth spurt (3).

Babies cluster feed (eat frequently) to signal your body to increase production for their growing needs. If they are sleeping more than usual between these marathons, it is almost certainly a growth spurt.

Your Baby is Nursing Faster

Newborns take forever to eat. As they get older, they become experts. A three-month-old can drain a breast in 5 minutes, whereas it took them 40 minutes as a newborn.

This speed is a sign of efficiency, not low supply.

Your Baby is Fussier Than You Think She Should Be

Babies cry. Sometimes they are tired, overstimulated, or gassy. Fussiness is not a reliable gauge of milk volume. Always check diaper output first.

Your Breasts Don’t Feel Engorged Anymore

In the early days, your breasts feel like rock-hard melons. Around 6 to 12 weeks, your supply regulates. Your breasts will feel softer and you won’t leak as much.

This is good news! It means your body has figured out exactly how much milk your baby needs. You are no longer overproducing; you are making just enough.

Your Baby Will Drink a Bottle of Formula Even After Breastfeeding

Babies have a strong sucking reflex. If you offer a bottle after nursing, they will often drink it simply because the nipple triggers that reflex, not because they are starving.

If you suspect they just want to suck for comfort, offer a pacifier instead.

Your Breasts Aren’t Leaking Anymore

Dry bra pads do not equal dry breasts. Once your supply regulates, the leaking often stops. Enjoy the fact that you no longer spray milk every time you hear a baby cry at the grocery store.

Feels Like You’re Pumping a Dry Well

Pumping output is not an accurate measure of total milk supply. A baby is far more efficient at removing milk than a machine.

You might be pumping too soon after a feed, or your pump parts (like the valves) might need replacing. Some women simply do not respond well to pumps despite having plenty of milk for the baby (4).

Is A Medical Condition Affecting Supply?

If the signs point to true low supply, check your medical history. Certain conditions can inhibit production.

Do You Have Enough Glandular Tissue?

Insufficient Glandular Tissue (IGT) is a condition where breasts don’t develop enough milk-making tissue during puberty. Signs include widely spaced (tubular) breasts, significant asymmetry, or a lack of breast changes during pregnancy.

If your breasts never felt tender or fuller while pregnant, mention this to a lactation consultant.

Have You Had Breast Surgery?

You can often breastfeed after surgery, but it depends on the procedure. Breast reductions are more risky than augmentations, especially if milk ducts or nerves were severed. This can physically limit the amount of milk you can deliver (5).

Does Your Thyroid Function Normally?

Undiagnosed hypothyroidism is a common milk-killer. A simple blood test can check your levels. Once treated with medication, many moms see an immediate boost in supply (6).

Do You Struggle with Hormonal Imbalances?

Conditions like Polycystic Ovary Syndrome (PCOS) can cause insulin resistance and high androgen levels, which may interfere with milk synthesis (7).

Are You Taking Birth Control Pills?

Estrogen is the enemy of lactation. If you started the pill shortly after birth, check the ingredients. Estrogen-containing contraceptives can dry up milk.

Opt for progestin-only options (the “mini-pill”) or non-hormonal methods like IUDs if you are breastfeeding (8).

Did You Suffer Too Much Blood Loss at Delivery?

A traumatic birth involving hemorrhage (Sheehan’s Syndrome) can damage the pituitary gland, which controls lactation hormones.

Also, if your milk is delayed, it could be due to retained placenta. If a piece of the placenta stays in the uterus, your body thinks it is still pregnant and won’t trigger milk production.

When to Blame It on the Baby?

Sometimes the factory is fine, but the customer is having trouble picking up the order.

Latching Problems

A shallow latch is painful and ineffective. If your nipples look like a tube of lipstick after a feed, or if nursing hurts, your baby isn’t draining the breast properly. Milk left in the breast signals your body to slow down production.

Tongue-Tie

A tongue-tie restricts the baby’s tongue movement. Since effective nursing requires a wave-like motion of the tongue, a tie makes it physically difficult for the baby to extract milk.

Breastfeeding Jaundice

Jaundice can make babies incredibly sleepy. A sleepy baby doesn’t nurse vigorously, which means they get less milk, which worsens the jaundice. You may need to wake your baby to feed every two hours until the jaundice clears (9).

Tips for Increasing Milk Supply

Full bottles of expressed breast milk

1. Take it Easy Momma

Stress is a supply killer because it inhibits oxytocin, the hormone responsible for “let-down.” You can’t make milk flow if you are tense.

Ask your partner or family to handle diapers and laundry while you focus solely on feeding and resting.

  • Practice deep breathing or visualization before nursing.
  • Get fresh air; a 10-minute walk can reset your mood.
  • Sleep when you can. I know, “sleep when the baby sleeps” is annoying advice, but rest is key to recovery and production.

I struggled to ask for help with my firstborn. Once I finally let my husband take the night shift for soothing (bringing the baby to me only to feed), my sleep improved, and so did my supply.

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2. Take In Plenty of Fluids

You can’t pour from an empty cup. Breast milk is mostly water, so stay hydrated. You don’t need to drown yourself, but aim to drink to thirst and then a little more (10).

Keep a water bottle at your nursing station. If your urine is dark yellow, drink more. Electrolyte drinks are helpful but watch the sugar content.

Watch Out For

Avoid excessive caffeine. While a cup or two is fine, too much can dehydrate you and make your baby jittery (read more on caffeine limits).

3. Watch Your Food Selections Carefully

Foods That Increase Milk Supply

You need fuel to make milk. Focus on galactagogues, which are foods believed to support lactation: (11)

  • Fruits and vegetables: Carrots, leafy greens, and garlic.
  • Healthy Fats: Avocados, nuts, and flaxseed.
  • Whole Grains: Oats and barley are famous for boosting supply.
  • Protein: Eggs, lean meats, and legumes.

While you should eat well, don’t stress about a perfect diet. You can make milk on a diet of toast and tea, but you will feel better if you eat nutrient-dense foods.

4. Be Careful When Messing with Your Hormones

Hormones run the show. If your period returns, you might see a temporary dip in supply during ovulation or menstruation. Calcium and magnesium supplements can help mitigate this drop.

Be wary of birth control. If you must use hormonal contraception, insist on progestin-only options (mini-pill or IUDs) to protect your supply.

5. Only Take Medications If They’re Necessary

Certain cold and allergy meds, specifically pseudoephedrine (Sudafed), dry up secretions, including breast milk. Antihistamines can have a similar effect.

Take Note

Always consult LactMed or your pharmacist before taking new medication. Doctors aren’t always up to date on lactation pharmacology (12).

6. Make Sure You’re Getting Enough to Eat

Now is not the time for a crash diet. Breastfeeding burns about 500 calories a day. To keep the factory running, you need to eat at least 2,000 to 2,500 calories daily (13).

If you are hungry, eat. Your body is doing hard work. Keep easy snacks like trail mix, yogurt, or bananas handy for one-handed eating while nursing.

7. Don’t Rely on Supplements Alone

Fenugreek, Blessed Thistle, and lactation cookies can help, but they are not magic bullets. The evidence on fenugreek is modest and short-lived. One trial saw about an 11 percent bump in the first few days, but by days 8 to 15 the fenugreek and non-fenugreek groups were making the same amount (14). Treat supplements as a small nudge that only works alongside frequent milk removal.

Note that some herbs can decrease supply. Avoid large amounts of peppermint, sage, parsley, and oregano (15). Culinary amounts in food are fine, but avoid concentrated oils or teas of these herbs.

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Nursing Tips To Produce More Milk

Mother breastfeeding her baby on the sofa

Breast milk production is a supply and demand system. The more milk you remove, the more your body makes. Here is how to maximize that signal.

8. Avoid Formula Supplementation or Bottles

Every bottle of formula your baby drinks is a missed signal to your body to produce that milk. If possible, avoid supplementing unless medically necessary.

Remember

Bottles flow faster than the breast. If a baby gets used to the instant gratification of a bottle, they may get lazy at the breast.

If you must supplement, use a slow-flow nipple and “paced feeding” techniques to mimic the effort of breastfeeding. Mimijumi bottles are often recommended for breastfed babies.

9. Tinker With Your Baby’s Latch

A good latch is critical. Your baby needs to take a large mouthful of breast tissue, not just the nipple.

How to get baby to latch onto the breast
Steps for achieving a good latch

Look for “fish lips” (flanged outward). If nursing hurts, break the suction gently with your finger and try again. Pain is a sign something is wrong.

10. Get Comfy

If you are hunched over and tense, milk flow suffers. Use a nursing pillow to bring the baby up to breast height so you aren’t leaning forward.

Experiment with positions like the Football Hold (great for C-sections or large breasts) or the Cross-Cradle hold for better control.

11. Don’t Be Afraid to Have a Hands-On Experience

Hands-on pumping or nursing involves massaging and compressing your breast while the baby feeds or the pump runs. This helps empty the breast more thoroughly, which increases the fat content of the milk and signals your body to make more. In one study of mothers of preterm babies, adding hand massage and compression to electric pumping raised their average daily milk volume by about 48 percent (16).

12. Give Switch Nursing and Double Nursing a Whirl

Switch nursing: If your baby gets sleepy or flow slows down, switch them to the other breast. Keep switching back and forth (ping-ponging) during one feed to keep them active.

Double nursing: Nurse the baby, take a 10-15 minute break to burp or change a diaper, and then put them back on the breast. This mimics cluster feeding.

13. Nurse More Frequently

Forget the clock. Nurse on demand. If you are trying to boost supply, aim for a minimum of 8-12 feedings every 24 hours.

Top Tip

An empty breast makes milk faster than a full one. Keeping your breasts drained is the fastest way to speed up production.

14. Keep Your Eyes on Your Baby

Sensory input matters. Smelling your baby’s head and looking at them releases oxytocin. If you are pumping at work, look at videos or photos of your baby to help trigger a let-down.

15. Keep Nursing at Night

Prolactin levels (the milk-making hormone) are highest at night. Night feedings do real work to build and hold your supply. I know it is exhausting, but those 3 a.m. sessions are doing the heavy lifting for your supply.

Because prolactin (the milk-making hormone) levels are higher at night, nursing or pumping at night, even once a night, will increase your supply. If you’re skipping pumping sessions, you’re missing out on your full potential.
Headshot of Michelle Roth, BA, IBCLC

Editor's Note:

Michelle Roth, BA, IBCLC

16. Use the Skin to Skin Method

Strip your baby down to a diaper and place them against your bare chest. This “kangaroo care” regulates the baby’s heart rate and triggers your feeding hormones. It is a powerful reset button for nursing strikes or supply dips (17).

17. Use Pacifiers Sparingly

In the early weeks, every suck should ideally be at the breast. Pacifiers can mask hunger cues, causing you to miss a feeding session. Wait until breastfeeding is well-established (around 4 weeks) before introducing a dummy (18).

18. Keep Your Baby Awake While Breastfeeding

A sleeping baby doesn’t eat. To keep them active:

  • Tickle their feet or stroke their cheek.
  • Blow gently on their face.
  • Change their diaper between breasts.
  • Do breast compressions to shoot a fast stream of milk that wakes them up.

19. Throw Out the Nipple Shields

Nipple shields are tools, not lifestyle choices. While they can save a breastfeeding relationship in specific cases, they can also reduce milk transfer stimulation (19). Work with a lactation consultant to wean off the shield as soon as possible.

20. Increase Your Supply With Pumping

Adding pump sessions is a classic way to boost supply.

  • Pump after nursing: Pump for 10-15 minutes after the baby eats to ensure the breast is fully empty.
  • Pump between feeds: Add a session an hour after nursing.

Don’t worry if you don’t see much output. The goal isn’t just the milk in the bottle; it is the stimulation that tells your body “make more tomorrow.”

21. Use Power Pumping To Increase Your Supply

Power pumping mimics a baby cluster feeding. It is intense but effective. In a 2023 pilot trial of mothers with low output, those who power pumped once a day expressed a median 50 mL per session by day seven, nearly double the 27 mL from routine pumping (20).

How Power Pumping Works

Pick one hour a day (morning is usually best) to do this cycle:

  • Pump 20 minutes. Rest 10 minutes.
  • Pump 10 minutes. Rest 10 minutes.
  • Pump 10 minutes. Finish.

Do this for 3-4 days in a row to see results (21).

Taking Care of Your Breasts

Woman massaging her breasts

Healthy breasts make more milk. Ignore pain or lumps at your own peril.

22. Don’t Forget to Massage Them

Massage stimulates blood flow and helps move fat-rich hindmilk forward. Massage before and during pumping to maximize output. It also helps prevent clogged ducts.

23. Use Breast Compressions

Breast compression is essentially squeezing the breast like a tube of toothpaste to help the baby get more milk.

24. Heat Things Up

Warmth dilates ducts and encourages flow.

  • Take a hot shower before nursing.
  • Use warm compresses or heating pads (specifically designed for breasts) right before you pump.
  • Massage under warm water.

25. Try to Avoid Engorgement

Engorgement signals your body that it made too much milk, triggering a reduction in supply. It also puts you at risk for mastitis. If you cannot nurse, pump or hand express just enough to relieve the pressure.

Prolonged engorgement can also lead to low supply – full breasts release a chemical signal that tells your breasts not so much milk is needed.
Headshot of Michelle Roth, BA, IBCLC

Editor's Note:

Michelle Roth, BA, IBCLC

FAQs

Why Am I Engorged but Have No Milk?

Engorgement with almost no output usually means the milk is there but trapped, not gone. Swollen tissue (edema) or a blocked duct can pinch the ducts closed so nothing flows out. Soften the areola with gentle reverse-pressure softening, then use warmth and light massage to get the milk moving before you nurse or pump.

What Time of Day Is Milk Supply the Highest?

Milk supply is usually highest in the early morning, roughly between 1 a.m. and 5 a.m., when prolactin (the milk-making hormone) peaks. That makes the first feed or pump of the day your best chance to collect extra milk for a stash.

What Is Double Pumping?

Double pumping means expressing both breasts at the same time with an electric double pump. Besides cutting your pumping time roughly in half, it raises prolactin more than pumping one side at a time, which can nudge your supply upward.

Can I Skip a Pump Session at Night?

Skipping a night pump is risky while you are still building supply, because prolactin peaks overnight and long gaps tell your body to make less. If you truly need the sleep, try not to go more than 4 to 5 hours without removing milk from at least one breast.

Does Pumping Burn as Many Calories as Breastfeeding?

Yes, pumping burns about the same calories as nursing, because the energy cost comes from making the milk, not from how it leaves your body. Produce 25 ounces and your body spends the same energy whether a baby drinks it or a pump collects it.

Do Tight Bras Decrease Milk Supply?

Yes, a too-tight bra can lower supply by pressing on milk ducts, which leads to plugged ducts and slower flow in that spot. Skip rigid underwire and squeezing sports bras while nursing and wear a supportive, non-restrictive nursing bra instead.

How Long Does It Take to Increase Milk Supply?

Increasing milk supply usually takes about 3 to 5 days of steady effort, not hours. Start nursing more often or power pumping today and give the extra demand several days to register before you decide whether it is working.

Can Stress Cause Low Milk Supply?

Stress rarely stops milk production, but it can block milk flow. A surge of adrenaline holds back oxytocin, the hormone behind your let-down reflex, so the milk is made but stays stuck. Calming down before a feed, with slow breathing or skin-to-skin contact, helps the let-down happen.

Does Insurance Cover a Breast Pump?

Usually, yes. Under the Affordable Care Act, most health plans created after March 2010 must cover a breast pump at no extra cost, though whether it is manual, electric, rental, or new depends on your plan (22). Call the number on your insurance card to see what you qualify for before you buy one.

Putting It All Together

Low supply feels like a crisis in the moment, but for most moms it turns out to be either a false alarm or a temporary dip that responds to more milk removal. The biggest lever is the simplest one: take milk out more often, because an empty breast refills faster than a full one.

You do not need all 25 tips. Start with three that fit your life right now, say frequent nursing, drinking to thirst, and a few minutes of skin-to-skin before a feed, and give them three to five days to show up. If the numbers on the scale or in the diaper still worry you, loop in a lactation consultant rather than white-knuckling it alone.

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Medically Reviewed by

Michelle Roth, BA, IBCLC

Michelle Roth, BA, IBCLC is a writer, editor, and board-certified lactation consultant for two busy pediatric practices. She is a former La Leche League Leader, Lamaze Certified Childbirth Educator, and Certified Infant Massage Instructor.