Letdown while breastfeeding
Let-down reflex | Pregnancy Birth and Baby
Let-down reflex | Pregnancy Birth and Baby beginning of content3-minute read
Listen
The let-down reflex is an important part of breastfeeding that starts milk flowing when your baby feeds. Each woman feels it differently, and some may not feel it at all. It can be affected by stress, pain and tiredness but once feeding is established, it requires little or no thought.
What is the let-down reflex?
The let-down reflex is what makes breastmilk flow. When your baby sucks at the breast, tiny nerves are stimulated. This causes two hormones – prolactin and oxytocin – to be released into your bloodstream. Prolactin helps make the milk, while oxytocin causes the breast to push out the milk. Milk is then released or let down through the nipple.
Some women feel the let-down reflex as a tingling sensation in the breasts or a feeling of fullness, although others don’t feel anything in the breast.
Most women notice a change in their baby’s sucking pattern as the milk begins to flow, from small, shallow sucks to stronger, slower sucks.
Some women also notice, while feeding or expressing from one breast, that milk drips from the other.
Your let-down reflex needs to be established and maintained to ensure a good supply of milk. This reflex requires no thought, unless you are having problems with breastfeeding.
When does it occur?
The let-down reflex occurs:
- in response to your baby sucking at the breast
- hearing, seeing or thinking about your baby
- using a breast pump, hand expressing or touching your breasts or nipples
- looking at a picture of your baby
- hearing your baby (or another baby) cry
The let-down reflex generally occurs 2 or 3 times a feed. Most women only feel the first, if at all. This reflex is not always consistent, particularly early on, but after a few weeks of regular breastfeeding or expressing, it becomes an automatic response.
The let-down reflex can also occur with other stimulation of the breast, such as by your partner.
Strategies to encourage the reflex
The let-down reflex can be affected by stress, pain and tiredness. There are many things to try if you are experiencing difficulty.
- Ensure that your baby is correctly attached to the breast. A well-attached baby will drain a breast better.
- Feed or express in a familiar and comfortable environment.
- Try different methods to help you to relax: calming music, a warm shower or a warm washer on the breast, some slow deep breathing, or a neck and shoulder massage.
- Gently hand express and massage your breast before commencing the feed.
- Look at and think about your baby.
- If you are away from your baby, try looking at your baby’s photo.
- Always have a glass of water nearby.
Milk let-down can be quite forceful, particularly at the beginning of a feed. This fast flow of milk can upset your baby, but it might not mean you have oversupply. It can be managed through expressing before a feed, reclining slightly and burping your baby after the first few minutes. If you continue to have problems, seek advice.
How to deal with unexpected let-down
Until you and your baby fine-tune breastfeeding, many sensations and thoughts can trigger your let-down reflex. Leaking breasts can be embarrassing, but should stop once breastfeeding is fully established.
In the meantime you can feed regularly, apply firm pressure to your breasts when you feel the first sensation of let-down, use breast pads and wear clothing that disguises milk stains.
If you need help and advice:
- Pregnancy Birth and Baby on 1800 882 436
- your maternal child health nurse
- a lactation consultant (your maternity hospital might be able to help)
- Australian Breastfeeding Association on 1800 686 268
Sources:
Australian Breastfeeding Association (Breastfeeding - naturally : the Australian Breastfeeding Association's guide to breastfeeding - from birth to weaning), Australian Breastfeeding Association (Let-down reflex)Learn more here about the development and quality assurance of healthdirect content.
Last reviewed: April 2021
Back To Top
Related pages
- Oversupply of breastmilk
- How to increase breast milk supply
- Breastfeeding your baby
Need more information?
Breastfeeding challenges - Ngala
Sometimes breastfeeding can be challenging
Read more on Ngala website
Breast refusal and baby biting breast | Raising Children Network
Breast refusal or baby biting breast are common breastfeeding issues. These issues might resolve themselves, or your child and family health nurse can help.
Read more on raisingchildren.net.au website
Breastfeeding - expressing breastmilk - Better Health Channel
Expressing breast milk by hand is a cheap and convenient method.
Read more on Better Health Channel website
Breast feeding your baby - MyDr.com.au
Breast milk has long been known as the ideal food for babies and infants. Major health organisations recommend that women breast feed their babies exclusively until they are 6 months old, and continue breast feeding, along with solids, until they are 12 months old or more. Breast milk has many benefits.
Read more on myDr website
Expressing and storing breast milk
This page includes information about expressing, storing, cleaning equipment, transporting and preparing expressed breastmilk for your baby.
Read more on WA Health website
Expressing breastmilk & storing breastmilk | Raising Children Network
You can express breastmilk by hand, or with a manual or an electric pump. Store expressed breastmilk in special bags or containers in the fridge or freezer.
Read more on raisingchildren.net.au website
Mastitis, blocked duct & breast abscess | Raising Children Network
If you think you have a blocked milk duct, you can treat it at home to start with. If you think you have mastitis or a breast abscess, see your GP as soon as possible.
Read more on raisingchildren.net.au website
Weaning at 6 Months | Tresillian
Babies start weaning when they begin consuming foods other than breastmilk. For advice on weaning check out Tresillian's tip page.
Read more on Tresillian website
Frequently asked questions about alcohol and pregnancy | FASD Hub
We've answered some common questions about alcohol use during pregnancy and breastfeeding, and about living with fetal alcohol spectrum disorder (FASD).
Read more on FASD Hub Australia website
Breastfeeding challenges - Ngala
Many new mothers experience breastfeeding challenges
Read more on Ngala website
Disclaimer
Pregnancy, Birth and Baby is not responsible for the content and advertising on the external website you are now entering.
OKNeed further advice or guidance from our maternal child health nurses?
1800 882 436
Video call
- Contact us
- About us
- A-Z topics
- Symptom Checker
- Service Finder
- Linking to us
- Information partners
- Terms of use
- Privacy
Pregnancy, Birth and Baby is funded by the Australian Government and operated by Healthdirect Australia.
Pregnancy, Birth and Baby is provided on behalf of the Department of Health
Pregnancy, Birth and Baby’s information and advice are developed and managed within a rigorous clinical governance framework. This website is certified by the Health On The Net (HON) foundation, the standard for trustworthy health information.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
This information is for your general information and use only and is not intended to be used as medical advice and should not be used to diagnose, treat, cure or prevent any medical condition, nor should it be used for therapeutic purposes.
The information is not a substitute for independent professional advice and should not be used as an alternative to professional health care. If you have a particular medical problem, please consult a healthcare professional.
Except as permitted under the Copyright Act 1968, this publication or any part of it may not be reproduced, altered, adapted, stored and/or distributed in any form or by any means without the prior written permission of Healthdirect Australia.
Support this browser is being discontinued for Pregnancy, Birth and Baby
Support for this browser is being discontinued for this site
- Internet Explorer 11 and lower
We currently support Microsoft Edge, Chrome, Firefox and Safari. For more information, please visit the links below:
- Chrome by Google
- Firefox by Mozilla
- Microsoft Edge
- Safari by Apple
You are welcome to continue browsing this site with this browser. Some features, tools or interaction may not work correctly.
What You Should Know About Your Let Down Reflex
Written by WebMD Editorial Contributors
In this Article
- How Does the Let Down Reflex Work?
- What Are Signs of a Good Let Down?
- Complications of the Let Down Reflex
When your baby first latches on to nurse, they don’t actually get much milk at first. Instead, their suckling sends a message to your body to release the milk stored in your breasts. The strength and timing of the let down reflex, also called the milk ejection reflex, varies from mother to mother.
How Does the Let Down Reflex Work?
If milk came out of your breasts instantly when your baby latched on, you’d probably leak constantly. Instead, your breasts store the milk until it’s needed. Most often, your let down reflex is triggered by a particular suckling motion your baby makes to stimulate milk production.
The let down reflex is a physiological response to your baby’s sucking. They stimulate small nerves in the nipple, which causes prolactin and oxytocin to produce milk and let down milk, respectively. The reflex is often accompanied by a tingling sensation in the nipple, but not all women experience that.
If you pay attention to your baby’s nursing patterns, at first their suckling will be faster and shallower to stimulate the release of milk. Once your milk lets down and your baby is drinking, their suckles will be deeper and longer. If they nurse longer and need more milk, they may adjust how they suck to stimulate more milk flow.
Other let down triggers. Since your brain is wired to care for a newborn, other things may trigger the let down reflex. If your baby cries, or if you hear any baby cry, your milk may let down in response. If you go too long without nursing and your breasts get too full, your let down reflex may trigger to relieve the pressure.
Strong emotions may also trigger a let down of milk. If you are feeling intensely stressed, angry, or sad, your body may take that as a sign that you need to nurse your baby or release milk to alleviate pressure.
If your milk is not letting down, you can physically stimulate the nipple to allow let down. Try gently rolling your hand down your breast toward the nipple, then massage gently. It can also help to relax and think about your baby.
What Are Signs of a Good Let Down?
Breastfeeding is wonderful for your baby, but it is often full of doubts and questions. Are you producing enough milk? Are you doing it right? This extends to the let down reflex, too. You may wonder if your let down is strong enough or too strong.
Here are signs of a healthy, functioning let down response:
Uterine cramps. You may notice that your uterus cramps during a let down in the days following birth. This is natural and nothing to be concerned about. As with menstrual cramps, for some the cramps are mild and barely noticeable, while for others the contractions can be more painful.
Change in sucking pattern. You may notice a change in your baby’s sucking pattern during a nursing session. Their suckle will go from being short and fast to long and slow once milk lets down. If they need more milk, their sucking may change again to encourage another let down.
Your feelings. Moms often report that they feel very relaxed and even sleepy when their milk lets down. This is a side effect of the oxytocin released during let down. You may also feel suddenly thirsty, which is your body’s way of preparing to replace the milk being removed during a nursing session.
Complications of the Let Down Reflex
Oversupply milk ejection reflex. A powerful let down is often accompanied by an oversupply of milk, sometimes called oversupply milk ejection reflex (O-MER). When your let down happens, you may notice that your baby sputters, coughs, and even chokes on your milk. Your baby may bite down to slow the milk flow. You may leak when not nursing or notice that your baby has more frequent but short feedings if you have an oversupply.
If this happens, keep a bib or cloth handy to catch your milk when it first lets down so that your baby doesn’t choke. After a moment when the let down slows, you can try latching your baby again. You can also restrict your milk flow by squeezing your areola during breastfeeding.
Talk to your doctor about safe ways to decrease your oversupply so that your let down is less strong.
Dysphoric milk ejection reflex. In some women, breastfeeding can create a negative physiological response, leading to negative emotions like guilt, anxiety, depression, and sadness. It is usually an isolated response that occurs only when you first let down your milk and into the first few minutes of breastfeeding. This is called dysphoric milk ejection reflex (D-MER) and is different from postpartum depression.
There is still more research needed on the causes and effects of D-MER. Talk to your doctor if you are struggling with negative emotions during breastfeeding.
Weak let down. You may have a weak let down if your baby seems frustrated while nursing. They may not be getting enough milk, or they may not be getting milk as fast as they want it. Using a breast pump can supplement less successful nursing sessions.
When pumping, look at photos and videos of your baby to try and encourage a let down. And just as you do when breastfeeding, try to relax. Take deep breaths and think about your little one, letting go of any stress.
90,000 10 reasons for the fatigue of young mothersSurrome day and great liability: as mother irritation
Content:
- Responsibility
- Multivativity and constant concentration of lactation
- Hormonal races
- Sleep disadvantages and joint sleep shortcom sleeping with a child
- Groundhog Day - repeating the same story
- Sensory overload
- Not finishing it
A “young mother” is not the age of the mother herself. This is her "status" next to a child under 7 years old. “Young mother” is one of the most burning “professions”. And the most important. Below are the answers to the questions: “Well, why are you tired, you are sitting at home?!”, “Well, what kind of mother am I?!”. And thoughts about what to do with it.
Modern motherhood is full of myths about how “ideal and right”. All these myths feed the biggest fear - to be (appear to be) a bad mother and harm the child in some way. nine0007
There are no categorical norms and rules. There is something that is suitable and acceptable for a specific woman, a specific family, harmoniously for a specific child living in specific circumstances.
When a “young mother” has outbursts of aggression, it is still “good news”: she has little strength left to react. Mom's irritation is a sign that there is no strength for an adequate reaction, for flexibility, for a sense of humor, for a change in position, for diplomacy and tolerance. But for "self-defense" - there is still. The bad news is that this is still not the most harmonious reaction, causing a feeling of guilt in the mother herself, which exhausts her even more. The next natural state is depression, apathy, tears. Irritation is a symptom and a reason to do something until the forces run out. nine0007
So, let's figure out what forces are spent on and what can be done with it.
Liability
Permanent. For the life and safety of those who cannot take care of themselves. (If it is seasoned with anxiety, the expenditure of energy increases many times over.)
What to do:
- Remember that the child has a strong self-preservation instinct. And he will signal when something threatens him.
- Imagine that he has the power of his own Destiny, his potential. nine0010
- Try to secure the space of the apartment so that it is possible to reduce control and anxiety.
- Give the child "safe freedom" as much as possible. The wonderful words of Janusz Korczak that our fear for the life of a child separates him from life itself. The right to take risks, to be exposed to danger, is one of the inalienable rights of a child, he insisted. This does not mean being careless, it means trying to protect the child, not to hide him from life itself. From the point of view of an anxious parent, the world is full of dangers, but by forbidding the child to experiment, take risks, try the world around, there is a risk of making him apathetic and indifferent to everything - “putting out life itself”. nine0010
- Allow yourself to take care of yourself responsibly - remember your instinct for self-preservation.
- Give yourself the opportunity to "share responsibility" - invite a nanny, or a grandmother, or friends. Who can definitely be trusted with a child for a while. Well, of course, learn to trust a husband who can definitely cope with the task.
Multitasking and a constant state of concentration
(Perfectionism increases the load.)
Our brain, our nervous system is able to maintain a certain, not very large, by the way, number of tasks and impulses. nine0007
What to do:
- Don't keep everything planned in mind. Write a list.
- Allow yourself to deviate from your plans.
- Remove from the list of tasks that is not vital. And not all tasks need to be done by yourself.
- Give yourself the opportunity to pause for 5-10 minutes - without thinking about “so, what else do I need to do”, without a phone, social networks.
Write a list in advance of what brings pleasure and is a resource. (You can search in such "channels": taste, aroma, what you can look at, movement, communication or silence, sound, prayer-meditation, reading, learning, touch - a feeling of "pleasure" for the skin-body.) - Ask relatives and friends for help. For many of them, this can be pleasant and important. It is also advisable to remember that it is usually easier for male husbands to help us when they are asked for something specific than when they are left to guess and feel guilty about something not done.
- Try to remove guilt and anger at yourself if something does not work out or does not work out the way you would like.
- Ask yourself what is the worst thing that will happen if I don't do this? As a rule, the worst thing is the feeling of one's own "badness", subjective, of course. nine0010
Maintenance of lactation
Remember that often the state of fatigue during breastfeeding is natural and indicates that the body does not have time to restore the resource.
Vitamins are important if you believe in them. And food that still needs to be taken orally many times a day regularly. Water. Oxygen (walks). Sleep - as much as possible. You can and should seek support from lactation consultants.
Hormonal surges
Yes, hormone levels fluctuate frequently. It affects the emotional and physical state. It is important to be aware of this. Not to throw responsibility "on hormones." And in order to choose for yourself "your own stabilizing method" - it is better not to use medication, of course: breathing, yoga, bodily practices. nine0007
Lack of sleep and co-sleeping with the child
There are myths about the co-sleeping of the child and parents. There are children and parents who do not need it. There are mothers for whom it is important at a particular moment in their life to save energy on getting up at night to see their child. There are children who had difficulties in childbirth, who initially have elevated levels of cortisol - they calm down and stabilize, feeling their mother's smell and warmth. And co-sleeping is therapy for their nervous system.
Groundhog Day - repetition of the same story
It is within our power to make the smallest changes possible. For example, turn on the background of the radio or audiobook. Give yourself permission to change your plan of action. Hang garlands around the house. Order pizza. Walk down another street in other places.
To afford a swimming pool, a master class at a music school (takes 1 hour), lying in the bathroom, going to the cinema with her husband - this will only make the most beloved and small children feel better.
Sometimes I suggest for moms who can’t leave the house in any way, such a game (if there is no way to make external changes, we can make internal, even minimal ones): imagine that you are a cat mom today - and you do everything from this roles, and today you are a mother-queen ... (Only it is important to remove all roles from yourself later.)
Sensory overload
Jumping, crawling, pinching, stroking her. There are constant sounds nearby - babies cry, scream, laugh, stomp ... All sensors - channels of perception - are overloaded.
It is necessary to give yourself a "sensory rest" - a time of pause, "untouchability", silence. This is a necessity of the nervous system.
It is important to explain to your husband that you really need tenderness and bodily contact, but the body from overload can experience "panic" and a state of insensitivity or hypersensitivity. nine0007
Not bringing it to the end
Inability to control something - to bring it to the end. Enjoy the completion of the process and the opportunity to "put an end."
When we are satisfied with the result, the hormone dopamine helps us regain strength. We feel a surge of energy. "Young mothers" often depend on the regimen and condition of the children. They can start an action or plan to do something while the child is sleeping... But he is not sleeping at all...
What to do:
- Break large tasks into many small ones. Celebrate success - the completion of each - even with the words “Oh yes I am! Oh, well done! ”, Even with checkmarks and flowers-marks, even with sips of juice.
- Thank the child for sleeping peacefully, helping, participating, playing. Children are very sensitive to this, check it out.
- Train yourself to enjoy the process.
- Include in the list of important things that bring pleasure - start there. nine0010
- Learn not to feel guilty about unfinished actions.
Lack of personal territory
It is important that each person has something about which he can say "mine". When something small appears - your own spoon-plate-chair-plaid-book, or 5 minutes of time - the opportunity to stand in the shower... . It is important for a child to see and feel that the mother is realized in something other than him. nine0007
Possible lack of "personal money"
Sometimes "young mothers" - who are on maternity leave - do not allow themselves to claim part of the family budget. And they start saving. Of course, this topic should have been raised before pregnancy and discussed with her husband. There is a family budget. And money “comes” to the family to solve common problems. The attitude towards the distribution of the budget is a projection of the attitude towards oneself. It is important to regain the opportunity to use the common resource without feelings of guilt and shame - in a harmonious and balanced way. nine0007
All this, seasoned with self-doubt, fear of making a mistake, perfectionism, inability to speak openly about needs, ask for help, can lead to a burnout trap. And all of the above are “growth zones”.
And most importantly, all this prevents you from feeling your own child, about whom the most professional specialists cannot write in the most advanced books.
And all this affects the relationship with the father of the child, who is primarily a husband who often wants to help, but does not understand what is happening to his wife and what help is needed. And which has its own burnout factors. nine0007
The arrival of a baby exacerbates hidden conflicts, both internal and external. And it is important to gradually deal with these internal conflicts.
The worst option is to start demanding from relatives that they take pity on us, support us, give us something. It is more harmonious to understand what we can do ourselves. What can we ask for.
It is important to realize that we have voluntarily decided to bring the Child into the world. Our task is to learn how to redistribute the load and recover. Feeling the boundaries of personal territory, being able to take care of yourself is an important skill that we pass on to a child from the first months of life. nine0007
And each of us is the best mother for her best child in the world. The same mother who is exactly what he needs and is important.
Maternal benefits of breastfeeding
1 Moberg KU et al. Oxytocin effects in mothers and infants during breastfeeding. Infant . 2013;9(6):201-206. - Moberg K. et al., "The effects of oxytocin on mother and child during breastfeeding." Infant. 2013;9(6):201-206.
2 Sobhy SI, Mohame NA. nine0028 The effect of early initiation of breast feeding on the amount of vaginal blood loss during the fourth stage of labor. J Egypt Public Health Assoc . 2004;79(1-2):1-12. - Sobhi SI, Moham NA, "Early initiation of breastfeeding and its effect on vaginal bleeding in the fourth stage of labor." G Egypt Public Health Assoc. 2004;79(1-2):1-2.
3 Labbok MH. Effects of breastfeeding on the mother. Pediatr Clin North Am . 2001;48(1):143-158. — Lubbock, M.H., "The impact of breastfeeding on the mother." Pediatrician Clean North Am. 2001;48(1):143-158.
4 Stuebe AM et al. Association between maternal mood and oxytocin response to breastfeeding. J Womens Health ( Larchmt ). 2013;22(4):352-361. - Stube A.M. et al., "Association of maternal mood and oxytocin response to breastfeeding". J Womens Health (Larchmt.) 2013;22(4):352-361.
5 Uvnas-Moberg K, Petersson M. Oxytocin, a mediator of anti-stress, well-being, social interaction, growth and healing. Z Psychosom Med Psychother . 2005;51(1):57-80. - Uvenas-Moberg K., Petersson M., "Oxytocin, a mediator of anti-stress, well-being, social interaction, growth and recovery." Z Saicosom Med Saicoter. 2005;51(1):57-80.
6 Peters SAE et al. Breastfeeding and the risk of maternal cardiovascular disease: a prospective study of 300,000 Chinese women. J Am Heart Assoc . 2017;6(6): pii : e 006081. - Peters S.A.I. et al., "Breastfeeding and Maternal Risk of Cardiovascular Disease: A Prospective Study of 300,000 Chinese Women". J Am Hart Assoc. 2017;6(6):e006081.
7 Victora CG et al. Breastfeeding in the 21st century: epidemiology, mechanisms, and lifelong effect. Lancet. nine0028 2016;387(10017):475-490. - Victor S.J. et al., "Breastfeeding in the 21st century: epidemiology, mechanisms and long-term effects". Lancet 2016;387(10017):475-490.
8 Li DP et al. Breastfeeding and ovarian cancer risk: a systematic review and meta-analysis of 40 epidemiological studies. Asian Pac J Cancer Prev . 2014;15(12):4829-4837. - Lee D.P. et al., "Breastfeeding and the risk of ovarian cancer: a systematic review and meta-analysis of 40 epidemiological studies. " Asia Pas W Cancer Prev. 2014;15(12):4829-4837.
9 Jordan SJ et al. Breastfeeding and endometrial cancer risk: an analysis from the Epidemiology of Endometrial Cancer Consortium.Obstet Gynecol. 2017;129(6):1059-1067. — Jordan S.J. et al., "Breastfeeding and the risk of endometrial cancer: an analysis of epidemiological data from the Endometrial Cancer Consortium". nine0028 Obstet Ginekol (Obstetrics and Gynecology). 2017;129(6):1059-1067.
10 Vekemans M. Postpartum contraception: the lactational amenorrhea method. Eur J Contracept Reprod Health Care. 1997;2(2):105-111. - Vekemans M., "Contraception after childbirth: method of lactational amenorrhea". Yur Zh Contraceptive Reprd Health Care. 1997;2(2):105-111.
11 Brown EJ et al. Contraception update: oral contraception. FP Essential. nine0028 2017;462:11-19. — Brown I.J. et al., Contraception Revisited: Oral Contraceptives. FP Essent. 2017;462:11-19.
12 Trussell J. Contraceptive failure in the United States. 2011;83(5):397-404. — Trussell, J., "The Collapse of Contraception in the United States." 2011;83(5):397-404.
13 Brown A nine0028 Infant sleep and night feeding patterns during later infancy: association with breastfeeding frequency, daytime complementary food intake, and infant weight. Breastfeed Med . 2015;10(5):246-252. - Brown A., Harris W., "Night feedings and infant sleep in the first year of life and their association with feeding frequency, daytime supplementation, and infant weight." Brest Med (Breastfeeding Medicine). 2015;10(5):246-252.
14 Uvnäs-Moberg K. Neuroendocrinology of the mother-child interaction. Trends Endocrinol Metab . 1996;7(4):126-131. - Uvenas-Moberg K., "Neuroendocrinological aspect of mother-child interaction". Trends Endocrinol Metab. 1996;7(4):126-131.
15 Kendall-Tackett K et al. The effect of feeding method on sleep duration, Maternal well-being, and postpartum depression. Clinic Lact . 2011;2(2):22-26. - Kendall-Tuckett, K. et al., "Influence of feeding pattern on sleep duration, maternal well-being and the development of postpartum depression." Clinical Lactation. 2011;2(2):22-26.
16 Doan T et al. Breast-feeding increases sleep duration of new parents . J Perinat Neonatal Nurs. 2007;21(3):200-206. - Dawn T. et al., "Breastfeeding increases parental sleep duration." J Perinat Neonatal Nurs. 2007;21(3):200-206. nine0028
17 Britton J.R. Breastfeeding, sensitivity, and attachment . Pediatrics . 2006;118(5): e 1436-1443. — Britton J.R. et al., Breastfeeding, Sensitivity and Attachment. Pediatrix (Pediatrics). 2006;118(5): e 1436-1443.
18 Dewey KG . Energy and protein requirements during lactation 1997;17:19-36. - Dewey K. J., "Energy and Protein Requirements During Lactation". Anna Rev Nutr. 1997 Jul;17(1):19-36.
19 U.S. Department of Health & Human Services [Internet]. nine0028 The Surgeon General's call to action to support breastfeeding – Factsheet ; 2011 Jan 20 [cited 2017 Feb] - Department of Health and Human Services [Internet], "Chief Medical Officer Calls for Strong Support for Breastfeeding: The Facts", Jan 20, 2011 [cited Feb 2017]
20 Howie PW et al. Protective effect of breast feeding against infection . BMJ. 1990;300(6716):11-16. — Howie PW, "Breastfeeding as a defense against infectious diseases." BMJ. nineteen90;300(6716):11-16.
21 Cohen R et al. Comparison of maternal absenteeism and infant illness rates among breast-feeding and formula-feeding women in two corporations . Am J Health Promot . 1995 Nov - Dec ;10(2):148-53. — Cohen, R. et al., "Comparison of maternal absence and childhood morbidity rates among breastfeeding and mixture-feeding employees of two corporations." Am J Health Prom. nine95 Nov - Dec ;10(2):148-53.
22 Wiklund PK Lactation is associated with greater maternal bone size and bone strength later in life . Osteoporosis International . 2012;23(7):1939-1945. - Viklund P.K. et al.