Yes, you can lose weight by pumping breast milk. Pumping milk burns calories in the same manner as nursing burns calories. There are calories in the milk itself, as well as calories burned by your body during the process of producing milk. When losing weight, it is important to discuss it with your doctor.
Since a breast pump mimics a baby sucking at the breast, your body responds similarly when it comes to the metabolic response. But while both pumping and breastfeeding burn calories, breastfeeding tends to be more efficient and therefore moms who breastfeed do it more often, burning more calories in the long run.
Your body burns around the same amount of calories to create that much breastmilk. So, you'll burn around 20 calories for each ounce of breastmilk you produce. The amount varies for each feeding session, but you can estimate the calories in terms of how much your child drinks.
Lactation and Adaptations of Maternal Metabolism
Overall maternal adaptations during lactation include increased basal metabolic rates and mobilization of fat stores [22–24]. Maternal fuel metabolism is altered markedly, with a 15 %–25 % increase in energy expenditure for milk production [24, 25].
Making breast milk and breastfeeding burns calories. Your body generally burns between 200 to 500 extra calories a day while you're breastfeeding. The actual amount of calories you burn will depend on how often you breastfeed, how much milk you produce, and your baby's age.
Yes, you can lose weight by pumping breast milk. Pumping milk burns calories in the same manner as nursing burns calories. There are calories in the milk itself, as well as calories burned by your body during the process of producing milk.
If this is you, rest assured, it's not just your imagination: Most women don't get as much milk from a breast pump as their babies do from nursing. Women's bodies respond differently to babies versus pumps, and it can have a huge impact on your ability to nurse long term.
However, if you are following the schedule and no milk is coming, keep going. This is an essential step in signaling to your body to create more milk. While some breastfeeding parents see a difference in just a day or two, you may find it takes several days or a week to see a significant increase in breast milk supply.
If your weight retention or gain is related to breastfeeding, whenever you decide to stop breastfeeding you may find it easier to lose weight – if that's what you want.
The hormone prolactin released during breastfeeding tends to reduce the ability to lose weight in some women. This hormone is released every time you nurse and may contribute to weight gain even when breastfeeding if you're prone to gaining weight anyway.
Hormones, stress, sleep, exercise, and diet can all affect weight, and some people do not lose weight when breastfeeding. People can focus on staying healthy throughout breastfeeding by eating a balanced, nutritious diet, getting regular exercise, and aiming to get as much sleep as possible.
Ultimately, if your baby has reached its birth weight and you're pumping enough milk during the day, it's okay to sleep eight hours without pumping at night. Keep in mind there is an adjustment period for your body as it begins to acclimate to the decrease in overnight milk removal.
If you're pumping for a freezer stash or to store milk for a future separation from your baby, try pumping shortly after you finish nursing – maybe 15 to 30 minutes. That way, your body will have an hour and a half or so to replenish breast milk for your next nursing session. More on combining pumping and nursing here.
Prolactin and oxytocin are two hormones that have everything to do with breastfeeding because they contribute to your milk production and letdown reflex. But you'll notice that these hormones do more than just produce your milk. They might make you feel relaxed while breastfeeding — which can lead to drowsiness.
While breastfeeding burns about 500-700 calories extra per day to fuel milk making, this may not always contribute to weight loss postpartum – many factors like pre-pregnancy weight, diet, physical activity level, etc will impact weight loss after birth (Institute of Medicine, 2002; Dewey, 1994).
According to the American College of Obstetricians and Gynecologists (ACOG), you burn around 450-500 calories daily while breastfeeding. 1 However, there is no simple answer to how many calories you can burn while nursing. It comes down to your body and the amount you breastfeed.
Once you stop breastfeeding you may find that your breasts look and feel very empty. The size of the breasts will likely return to your pre-pregnancy size but may look quite different. The fatty part of your breast will come back over time to make the breasts look fuller and plumper again.
Breastfeeding. It takes about 500 extra calories a day to make breast milk. You get those extra calories from the foods that you eat every day and the fat that is already stored in your body. Using up those fat stores helps you to lose weight gained in pregnancy faster.
Though a 2014 study found that breastfeeding for at least three months gave moms a slight advantage in postpartum weight loss, many women have not found that to be the case. Some have even found it harder to lose weight while breastfeeding.
Set realistic weight-loss goals
Losing weight safely — about one pound per week — means that it takes most new moms between six months to a year to return to pre-pregnancy weight. "Half of that weight is typically lost in the first six weeks after delivery," says Dr. Borchardt.