Why does my breast milk smell metallic?

Understanding the Metallic Smell of Breast Milk
Experiencing a metallic smell in breast milk can be concerning for nursing mothers. This phenomenon is often linked to the presence of lipase, an enzyme that plays a crucial role in the digestion of fats in breast milk. While lipase is naturally occurring and beneficial, some women may have an excess of lipase, which can lead to changes in the smell and taste of their milk.
The Role of Lipase
Lipase is responsible for breaking down fats into fatty acids, which can enhance the nutritional profile of breast milk. However, when lipase activity is excessively high, it can lead to a breakdown of fats that occurs too quickly. This rapid breakdown can result in breast milk that smells or tastes soapy or metallic .
Interestingly, this issue is not limited to stored milk; some mothers report that even fresh breast milk can have this metallic odor. This suggests that the lipase activity may be significant enough to affect the milk immediately after breastfeeding.
Storage and Exposure to Air
Another factor contributing to the metallic smell is the exposure of breast milk to air during storage. When milk is expressed and stored, the lipases continue to work, even in frozen conditions. This ongoing enzymatic activity can lead to the release of fatty acids that may produce a metallic or soapy scent.
Nutritional Quality Remains Intact
It’s important to note that while the smell and taste of breast milk may change due to high lipase levels, this does not affect its nutritional quality. The milk remains safe and beneficial for the baby, despite the unusual odor.
Managing the Situation
For mothers who are concerned about the smell of their breast milk, there are a few strategies that can be employed. One common approach is to heat treat the milk before freezing it. This process can deactivate the lipase, preventing it from altering the milk’s smell and taste. However, this method can be cumbersome and may not be necessary for everyone.
In conclusion, a metallic smell in breast milk is often a result of high lipase activity, which can occur in both fresh and stored milk. While it may be alarming, understanding the underlying causes can help mothers navigate this experience with confidence, knowing that their milk remains nutritious for their little ones.

What does spoiled breastmilk smell like?

If your milk smells “sour” or “rancid” this can be from oxidation. These changes may occur shortly after the milk is expressed, or it may occur after the expressed milk is frozen and then defrosted.

How to get rid of metallic taste in breast milk?

Scald your breastmilk to reduce high lipase.
If your breastmilk does have high lipase, you can scald your milk before freezing or storing to prevent this from happening.

Why does my milk taste metallic?

Oxidized flavour is a result of the effect of oxygen on the milk phospho-lipids which causes the development of various flavours – cardboard, metallic, fish or oily. Oxidation of polyunsaturated fatty acids of the phosphatides of the globular membrane induces the formation of hydrogen-peroxide.

What happens if a baby drinks bad breast milk?

Can babies get sick from old breast milk? If your baby has had spoiled breast milk, they’ll likely let you know. They may throw up, or have an upset stomach, diarrhea or fever. It’s important to call your pediatrician if you think your baby may be sick from having spoiled breast milk.

Is it normal for breast milk to smell metallic?

One theory is that lipases, which are enzymes that naturally occur in human milk, continue working even when milk is frozen, breaking down fats and releasing fatty acids that can smell soapy or metallic.

Why does my breast milk smell chemically?

Your milk may have excess lipase in it, which can cause stored breastmilk to smell sour or soapy. Lipase is a beneficial enzyme found in breast milk that helps break down milk fat. If your breastmilk has excess lipase, the longer the milk is stored, the stronger the smell becomes.

How to tell if milk is high in lipase?

If your milk smells a little soapy, the cause is often milk that is high in lipase activity.

How do I know if my breast milk is bad for my baby?

That doesn’t always mean it’s soured or spoiled, but you should talk to your doctor or lactation specialist about what to do if your breast milk tastes or smells bad or your baby doesn’t like it. You may need to avoid certain foods, change how you pump or store your milk, or make other lifestyle changes.

How to tell if breast milk is bad?

Human breast milk can spoil just like any other kind of milk. This leads to a sharp, sour smell and flavor. There’s no way to save spoiled milk. You should be able to tell it’s spoiled by tasting a sip of it yourself.

Can my baby drink high lipase milk?

WHAT CAN I do about it? First thing’s first, having high lipase milk does not mean your milk is “bad”! Some babies take high lipase milk without thought. Yes, it is perfectly safe for babies to drink high lipase milk.