How does Breastmilk Production work?
If a mother understands the process of lactation, she will be able to
recognize and implement measures that can help solve many
breastfeeding problems, such as oversupply and low milk supply.
How Does it all Start?
At the beginning, the
hormones that are produced by pregnancy, start to change and grow your
milk ducts; they start getting ready for breastmilk production, by
increasing in number and by branching out with clusters of alveoli on the ends.
During your pregnancy, just half way through, your endocrine control system will start to trigger the making of
colostrum and your milk supply will start to "come in" 30-40 hours after giving birth
to your baby. This process may take longer in mothers who have had a c-section delivery.
Your baby’s tummy is so small at this stage, that he/she only
needs a few drops of colostrum with every feed to be satisfied.
A mother's body will usually not produce milk before the baby is born, as the levels of
progesterone are too high, but once she delivers the placenta, the levels
of progesterone will drop. The high level of prolactin then triggers
copious milk production “lactogenesis 2”
A mother should
start to breastfeed her baby as soon as possible, as this will trigger the release of Prolactin and therefore trigger increased breast milk production.
Mothers only start to feel the increased breast fullness 2 – 3 days after birth. (Up to 5 days in Moms who have had a c-section, or who have various issues such as PCOS or diabetes)
When your body is signaled to start producing milk, the hormone Oxytocin is released, and this causes the milk to be pushed out of the
Read more about breastfeeding hormones here.
After lactogenesis 2, there is a switch to your autocrine
system. This process of milk production is called lactogenesis 3. This
is the maintenance stage of milk production, in which breastmilk
production is controlled via supply and demand. The more baby drinks,
the more milk the mother will produce.
Read more on the anatomy of the lactating breast.
Need a more in depth explination of the stages of lactation?
Milk Synthesis is Controlled in the following way
- When your breasts are full, milk production slows down.
When your breasts are empty, milk production is sped up.
Your breasts will usually be very full the first few days, as your body does not know yet how much your baby actually needs, but as time goes by, your breasts adapt to your baby’s needs.
Breast Milk Supply Throughout the Day
Milk volume is higher in the mornings and gradually decreases throughout the day. Breast milk also becomes fattier as the day progresses.
Increasing my Breastmilk Production
Mothers that want to increase their milk supply, will need to ensure that their breasts are drained after every feeding, this is to increase the speed of milk synthesis.
How to Increase Breast Milk Production:
Decreasing my Breastmilk Production
“block nursing” – Discussed on the
The Composition of Breast Milk Over Time
Your breast milk changes as your baby grows. The fat volume also increases as your baby becomes older, and needs extra fat.
A mother passes all her immune benefits over to her baby too. Babies receive gut protection via the breast milk too.
What is Foremilk and Hind milk?
Foremilk is the milk that has collected in the front of your breast's milk producing cells and is the milk that a baby receives at the beginning of a feed.
Hind milk, is the fattier milk that has collected at the back of the milk producing cells and is the milk that a baby receives gradually as the breastfeeding session continues.
Your baby should drain one breast, before offering the other one.
Read more about foremilk and hind milk imbalance.
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Site by BFeeding Mamma, Tracy Behr. Currently studying through Child birth International (CBC, CBD). Also an accomplished author and Mommy of two.