Why Does My Breast Milk Taste Bad?

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It's World Breastfeeding Week! To celebrate I wanted to share a post from my friend, Rebekah, author of Why Does My Breast milk Taste Bad? One Mom's Journey to Overcoming Excess Lipase Activity

Note from Stacy:

I'm sharing this post from Rebekah with the hope that it will help someone who is struggling. I breastfed all three of my babies and had an amazing amount of difficulty nursing two of them. A lot of tears were shed and much sleep was lost over the struggle and strain. I'm hoping this post will be read by just the right person who needs it.

Much love and hugs to all of you mama's with little ones.

– Stacy


I thought my breastfed daughter was picky.

I thought she was stubborn.

I thought I had the wrong type or bottle or nipple. Perhaps we didn't give her a bottle often enough or early enough.

Again and again my daughter refused to take a bottle while I was gone. I was extremely frustrated. What was I doing wrong??

And then I tasted the breast milk that was in her bottle. I was shocked. Nothing had prepared me for that moment. My breastfeeding class, lactation consultant, mom, and girlfriends had never warned me.

My breast milk tasted bad. No… not just bad. My breast milk tasted horrible.

I was devastated and instantly flooded with questions. Did all of my milk taste this way? Is there something wrong with me? Is there something wrong with my freezer? What if all of my frozen milk taste like this? Oh my word. All that milk in my freezer! Is it all bad???

After hours and hours of research, I diagnosed myself with excess lipase activity. There was nothing wrong with the nutrition of my milk, but an overactive enzyme (lipase) was causing my expressed breast milk to develop a bad taste over time.

I didn't discover that I had excess lipase activity until my daughter was 5 months old. By that time, I had 575 ounces of breast millk in my freezer and all of it tasted bad. I had spent hours and hours pumping breast milk and my daughter refused to drink it. It was gut wrenching.

My daughter will be turning 6 next month and her little brother is 3 years old. Now that I have years of experience dealing with excess lipase activity, I have a few things that I want every breastfeeding mother to know.

Why Does My Breast Milk Taste Bad?

5 Things I Want You to Know About Excess Lipase Activity

1. It can happen to anyone. There hasn't been any formal research to determine the cause of excess lipase activity. If you are a breastfeeding mother who pumps (even if it is just for the occasional babysitter), you could experience excess lipase activity.

2. Don't wait. Test your milk right away. When you are ready to start your pumping routine, put a quarter ounce of breast milk in your refrigerator and taste it every couple of hours to see if the taste changes. If a week goes by with no significant changes, then you are in the clear. If you notice an offensive taste change, it is likely you have excess lipase activity.

3. You can still have a healthy breastfeeding relationship with excess lipase activity. You don't have to stop nursing or pumping. It is possible to build a supply of frozen breast milk even if you have excess lipase activity.

4. You are not alone. I felt extremely isolated when I was searching for answers after I discovered my breast milk tasted bad. None of my friends or family had experienced this. Even my daughter's doctor wasn't sure what was going on. I don't want another mother to feel as desperate for answers and support as I did, which is why I wrote an eBook dedicated to excess lipase activity.

Why Does My Breast Milk Taste Bad? One Mom's Journey to Overcoming Excess Lipase Activity

In the book Why Does My Breast Milk Taste Bad? you will find:

  • An explanation of excess lipase activity that you don't need a medical degree to understand.
  • Answers to 31 frequently asked questions.
  • Detailed instructions on how to test your breast milk for excess lipase activity.
  • Step by step directions on how to stop your milk from developing a bad taste.
  • 8 suggestions on what to do with all of the bad tasting breast milk in your freezer.
  • My personal story and what happened when my second child was born.
  • Valuable information from Dr. Ruth Lawrence, the nation’s leading authority on breastfeeding.
  • Support, encouragement, and the knowledge that you are not alone.

5. Awareness is crucial. Please help spread the word about excess lipase activity. Even if you don't have this problem, someone in your social circle might benefit from this information.

Every breastfeeding mother who choses to pump should test their milk for excess lipase activity.

Stacy again:
Isn't this eye-opening? Before Rebekah mentioned this to me, I had not heard of excess lipase activity! I wish I had known about it when my babies were little as it could have been the reason I had so much trouble! I highly recommend Rebekah's book if you suspect this could be an issue or you or someone you know.

Check out Rebekah's book here: Why Does My Breast milk Taste Bad? One Mom's Journey to Overcoming Excess Lipase Activity

Have you ever tasted your breast milk? Do you suspect that you could have excess lipase activity?

Rebekah Hoffer
Rebekah Hoffer blogs at Simply Rebekah where she shares parenting advice from the perspective of a mom who knows she isn't perfect. She also shares tips on natural living and money saving.

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