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How to Lose Weight While Breastfeeding Without Hurting Your Milk Supply

How to Lose Weight While Breastfeeding Without Hurting Your Milk Supply

Mar 09, 2025

Many new moms wonder, “Will breastfeeding help me lose the baby weight?” The short answer? Maybe. But it’s not a magic solution. While breastfeeding does burn calories, weight loss depends on many factors like nutrition, metabolism, and hormone balance.

In this blog post, we’ll break down what actually works for postpartum weight loss while breastfeeding—and how to do it without sacrificing your milk supply.

Does Breastfeeding Guarantee Weight Loss?

It’s a common belief that breastfeeding leads to automatic weight loss. While some moms shed pounds effortlessly, others find it more challenging. Here’s why:

  • Breastfeeding burns calories, but it also increases hunger. If you’re not eating the right balance of nutrients, your body may hold onto weight.
  • Your metabolism changes postpartum, and for many moms, it slows down—especially if you’re not eating enough.
  • Hormones play a huge role in how your body stores and burns fat. Stress, sleep deprivation, and under-eating can all impact weight loss.

Instead of relying on breastfeeding alone, focusing on nutrition, movement, sleep, and stress management will help you feel your best postpartum.

How to Lose Weight While Breastfeeding Without Hurting Your Milk Supply

If you want to lose weight safely while keeping your energy levels and milk supply strong, follow these science-backed strategies.

1. Eat Enough (and Eat the Right Foods)

One of the biggest mistakes moms make is eating too little in an attempt to lose weight. Undereating can actually slow your metabolism and decrease your milk supply.

Instead, focus on nutrient-dense meals that include:
✔️ Protein (chicken, eggs, beans, Greek yogurt)
✔️ Healthy fats (avocado, nuts, olive oil)
✔️ Fiber-rich carbs (sweet potatoes, quinoa, oats)

Aim for at least 1,800-2,200 calories per day, depending on your milk supply needs.

2. Balance Your Blood Sugar

Blood sugar fluctuations can cause cravings, energy crashes, and even make it harder to lose weight. Keep your blood sugar stable by:

  • Eating protein + healthy fat + fiber at each meal
  • Avoiding long gaps between meals (eat every 3-4 hours)
  • Drinking plenty of water (dehydration can mimic hunger)
  • Prioritize Strength Training Over Cardio

3. Prioritize Strength Training Over Cardio

Many moms think cardio is the best way to lose weight. While it burns calories short-term, too much cardio can stress your body and lead to weight retention.

Instead, focus on strength training to build muscle and boost metabolism. Bodyweight exercises, resistance bands, or simple dumbbells can be highly effective.

4. Manage Stress to Support Your Hormones

Stress triggers cortisol, a hormone that makes your body store fat—especially around the midsection. New moms experience stress from lack of sleep, postpartum recovery, and adjusting to motherhood.

Try these simple stress-reducing strategies:

âś… Deep breathing exercises (even 5 minutes helps!)
âś… Short walks outside for fresh air and movement
âś… Asking for help from family or friends

5. Get Quality Sleep (As Much as Possible!)

Sleep deprivation affects hormones that control hunger and metabolism. While new moms can’t always control how much sleep they get, focusing on quality sleep can help.

Tips for better sleep:
✔️ Nap when your baby naps (even a short 20-minute rest helps)
✔️ Avoid screen time before bed
✔️ Ask your partner or a family member to take over night feedings occasionally

Breastfeeding alone doesn’t guarantee weight loss, but a well-balanced approach to nutrition, movement, sleep, and stress management can help you reach your healthiest weight—without sacrificing your milk supply.

Want step-by-step guidance? Join the Postpartum Shift today and learn how to support your metabolism, balance hormones, and feel your best after baby!

 

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Hey there, I'm Brooke...

After my son was born prematurely with Down syndrome and needed open-heart surgery, I felt completely overwhelmed. Juggling doctor’s appointments, therapy, pumping full time, and adjusting to motherhood left me drained. I felt guilty for wanting a break and neglected my own needs, making it feel impossible to care for myself and him.

That breakdown became my breakthrough. I realized that taking care of myself wasn’t selfish—it was essential for my family. By healing my hormones and metabolism through nutrition, I gained energy, stabilized my mood, and reached my healthiest weight while producing more than enough milk (even donating hundreds of oz to babies in need).

I felt confident in my body again—wearing swimsuits, enjoying vacations, and not worrying about my milk supply. Seeing so many moms struggle with the same issues, I created The Postpartum Shift. With over 10+ years as a Registered Dietitian & Certified Lactation Counselor, I’ve helped thousands of moms get results and feel like themselves again.

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