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                                                                          BreastfeedingAnswer CenterMixing Breastmilk and Formula
 
 
 
 
 
 

Mixing Breastmilk and Formula


I have been advised to supplement my breastfeeding with formula. Will this diminish the benefits of breastfeeding?  Also, can I feed 2-3 ounces of breastmilk then give her 2-3 ounces of formula? This is due to low milk production and Sophie is still hungry after I drain both breasts. I thought the mixing of both could be harmful. Please advise.

Editor's note:
Two varying opinions on this question are posted below.
 


Absolutely - you can mix breastmilk and formula. I don't know how that rumor got started that you shouldn't mix them, but it just isn't true. 

Breastfeeding does not have to be all or nothing - ANY amount of breastmilk is going to be beneficial to your baby. The antibodies actually become more concentrated as a mother's supply decreases.  Because it is the antibodies that help fight infection, this could actually be a lifesaving decision!

I would recommend offering the breastmilk first. Then follow with formula. Babies tend to take more milk out of a bottle than from the breast (for several reasons), and formula tends to sedate babies. Also, it takes a longer time for formula to digest. So formula-fed babies tend to eat larger feedings and space them further apart than breastfed babies.

Your goal should be to decrease the amount of formula per feeding (note you are not necessarily decreasing the amount per day - just per feeding) so that your baby will be hungry about every 2-3 hours during the daytime. This will allow you to stimulate your breasts in a manner more conducive to building up a good supply. Another idea would be to use a supplemental feeding device, such as the "SNS" made by Medela. This device allows you to feed your baby formula at the breast. You can see this product at Medela's website.

There is also excellent information at this website on building up your milk supply. I would recommend reading everything you can find on the subject. You will find a wealth of information at Breastfeeding.com as well as Medela's website and La Leche League's website:  
http://www.lalecheleague.org. You might also try looking for a local La Leche League group to join. 

Basically what is required in building up your supply is frequent emptying of the breasts. Lactation is controlled by hormones, so the better you can get those hormones flowing, the better it is for your milk supply. Renting a hospital grade electric breastpump can make a difference in a hurry - especially with double-pumping. Also, there is an herb called fenugreek which you can buy at any healthfood store that is helpful. Two to three capsules with each meal is a safe dosage that, for most women, can help boost milk supply within a week.

I hope this information is helpful to you.  Let me know if I can be of further help.
Good luck!


Cher Sealy RN, BSN, IBCLC, LLLL
Cher is a Registered Nurse and private practice Lactation Consultant in Montgomery, Alabama. She was certified as an IBCLC (International Board Certified Lactation Consultant) in 1987 and re-certified in 1997. She has been a La Leche League Leader since 1985.

Unless there is medical indication, we do not recommend adding formula to the diet of a breastfed baby. The American Academy of Pediatrics recommends exclusive breastfeeding for the first 4-6 months (at which time solids may be added to the diet) and then breastfeeding for at least the first 12 months. If an infant needs supplements, we recommend that breastmilk be pumped and then fed by bottle.

If there is a low milk supply, it may be decreased further by adding formula, which takes longer to digest and decreases your baby's hunger. One important factor in increasing your milk supply is how much your baby is nursing. Other remedies to increase your milk supply, such as improving the latch, using herbal or prescribed supplements, and pumping your milk, can be found at the following links:

Andrea Eastman (MA, CCE, IBCLC) on re-estabishing a milk supply after supplementing

Anne F. Norton-Krawciw (RPh, IBCLC) on the use of Domperadome for increasing milk production

Dr. Jack Newman on Using a Lactation Aid 

Dr. Jack Newman's advice on Herbs for Increasing Milk Supply, which includes two additional articles on Fenugreek.

The Knox Breastfeeding site.

Your concerns about the mixing of breastmilk and formula are supported by research. In 1993, Vnuk published findings about the effects of "Just one bottle..." in the journal Breastfeeding Review. Here is a summary:

Did you know...That just one bottle can have serious consequences for both mother and baby? Unfortunately it is very easy to give a breastfed baby "just one bottle of formula" and the reasons for giving the bottle often show concern and compassion. For example:

Letting the mother have a well deserved rest after a long delivery.

Settling a hungry baby who is difficult to feed.

Giving the mother's sore nipples a rest.
"But studies have shown that 'just one bottle of formula' can be harmful to both mother and baby by:

Increasing the likelihood of serious allergy to cow's milk protein.

Increasing the chance of bowel infection and diarrhea by changing the pH of the bowel. It may take up to one month to return to normal, safer levels.

Causing nipple confusion.

Affecting the delicate supply and demand balance.

Increasing engorgement by not emptying the breasts.

Decreasing a mother's confidence in her ability to feed her baby.

Reducing the duration of breastfeeding."

What is most important at this time is to know that you ARE doing what's best for Sophie. Educating yourself and getting all the information you can certainly demonstrates that you are a concerned and caring mother. Sophie is benefiting tremendously from all the breastmilk she has received from you. Every bit helps and you've given her a great deal!

 - Joan Edelstein, MSN, DrPH, RN
Joan has been a Professor of Maternity Nursing at San Jose State University School of Nursing since 1980 and an Integrated Perinatal Education Coordinator/
Senior Health Educator at Kaiser Permanente in Hayward, CA since 1999 (In January, 2001, Hayward became the 30th hospital in the US to receive the prestigious international certification as a Baby Friendly Hospital).

 






 

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