Does Goat's Rue Increase Milk Supply?

Posted on February 16, 2026

Introduction
What is Goat’s Rue?
How Does Goat's Rue Support Milk Production?
Does Research Support the Use of Goat’s Rue?
How to Take Goat's Rue
Potential Side Effects and Safety Precautions
Combining Goat's Rue with Other Support
When Should You See an IBCLC?
Is Goat’s Rue Right for You?
Conclusion
FAQ

Introduction

Watching those ounces in the bottle or wondering if your baby is getting enough at the breast can feel like an emotional rollercoaster. If you have been searching for ways to support your lactation journey, you may have come across an herb with a curious name: goat’s rue. It is a plant with a long history of use in Europe, specifically for mothers looking to boost their milk production. At Milky Mama, we know that every drop counts, and we are committed to helping you understand the tools available to support your breastfeeding goals, including our lactation supplements.

In this article, we will explore the science behind goat’s rue, how it differs from other lactation herbs, and what the research says about its effectiveness. We will also cover safety considerations and how to tell if this particular herb is the right fit for your body. Our goal is to provide you with the knowledge you need to feel confident in your feeding journey. Understanding how goat’s rue interacts with your body can help you make an informed decision about your lactation support.

What is Goat’s Rue?

Goat’s rue, or Galega officinalis, is a perennial herb that belongs to the legume family. It is native to the Middle East but has been naturalized in Europe and parts of the United States. The plant itself features beautiful clusters of white, blue, or purple flowers and has been used for centuries in traditional medicine. While it has been used for various health purposes, its most famous role is as a galactagogue.

A galactagogue is simply a substance—usually a food, herb, or medication—that is believed to help increase milk supply. The name "goat’s rue" actually comes from the observation that when goats grazed on this plant, their milk production seemed to increase significantly. Eventually, this observation was applied to human lactation. Unlike some other herbs that have more recently entered the spotlight, this plant has a deep historical footprint in maternal care across many cultures. For mothers looking for a ready-made herbal option, Dairy Duchess is one of Milky Mama’s targeted supplement blends featuring goat’s rue.

It is important to distinguish this herb from "rue" (Ruta graveolens), which is a completely different plant and is not safe for use during pregnancy or lactation. Always look for the botanical name Galega officinalis to ensure you are getting the correct herb intended for breastfeeding support.

How Does Goat's Rue Support Milk Production?

Most lactation herbs work by influencing the hormones that trigger milk let-down or by increasing the flow of milk already present in the breast. Goat’s rue is unique because it is believed to support the development of the mammary tissue itself. This makes it a frequent recommendation for mothers who may not have experienced significant breast changes during pregnancy. If pumping is part of your routine, Pumping Queen is another supplement designed for pumping mamas.

The herb contains a compound called galegine. In the early 20th century, researchers studied galegine for its ability to lower blood sugar, which eventually led to the development of common medications for diabetes. However, in the context of breastfeeding, this compound is thought to stimulate the growth of milk-producing ducts and glandular tissue.

Understanding Mammary Tissue Growth

During pregnancy, your body undergoes hormonal shifts that prepare your breasts for feeding. For most, this means an increase in the size of the milk-making glands, known as alveoli. Alveoli are the tiny sacs in the breast where milk is produced and stored. If these glands do not fully develop, it can make establishing a full milk supply more challenging.

Because goat’s rue focuses on the structure of the breast rather than just the hormonal signal to release milk, it is often used by mothers in specific situations:

Mothers who have had breast surgery that may have impacted glandular tissue.
Mothers with Insufficient Glandular Tissue (IGT).
Adoptive mothers who are attempting to induce lactation.
Mothers who did not notice their breasts getting larger or feeling fuller during pregnancy.

The Insulin Connection

Another way goat’s rue may support milk supply is through its impact on insulin sensitivity. We know that insulin plays a vital role in how the body produces milk. If a mother has underlying issues with blood sugar regulation, such as Polycystic Ovary Syndrome (PCOS), it can sometimes interfere with the "liquid gold" production process. Because this herb helps the body use insulin more effectively, it may help clear a metabolic path for better milk production.

Key Takeaway: Goat's rue is unique because it targets the actual growth of milk-making tissue and supports insulin health, making it a specialized tool for supply challenges.

Does Research Support the Use of Goat’s Rue?

When looking at the question of whether goat's rue increases milk supply, the answer from a scientific perspective is "likely, but more high-quality research is needed." While there are many anecdotal success stories from mothers around the world, formal clinical trials are still limited.

One notable study focused on mothers of preterm infants. These mothers were given a supplement containing silymarin and goat’s rue. The results showed that the mothers taking the supplement produced significantly more milk than those in the control group. Specifically, by day 28 of the study, the treated group saw a much higher daily milk volume.

Other older observational studies have reported increases in milk output ranging from 30% to over 100%. However, many of these studies lacked the strict controls we look for in modern medicine. Despite the need for more large-scale trials, many lactation consultants and herbalists continue to recommend it because of the positive results seen in practice. We often see mothers in our community report a steady increase in their pumping output after consistent use, especially when they are also learning more about understanding and managing low milk supply.

How to Take Goat's Rue

If you and your lactation consultant decide that goat’s rue is a good option for you, it is important to know how to use it correctly. Unlike some other herbal supports that might show results in 24 to 48 hours, this herb usually takes a little longer to kick in. Because it is working on tissue growth, you may need to wait one to two weeks before you notice a significant change in your supply.

Common Forms of the Herb

You will typically find this herb in three main forms:

Capsules: This is often the most convenient way to take it. Capsules provide a measured dose and are easy to take on the go. You can find goat’s rue as a single ingredient or as part of a blend, like our Dairy Duchess supplement.
Tinctures: A tincture is a concentrated liquid extract. These are usually taken by adding a specific number of drops to a small amount of water or juice. Some prefer tinctures because they are absorbed quickly by the body.
Teas: Dried goat’s rue leaves can be steeped into a tea. While this is a traditional method, the taste can be quite bitter, so many mothers prefer to mix it with other flavorful herbs like hibiscus or raspberry leaf.

Dosage and Consistency

Because there is no standard "prescription" for herbal supplements, it is vital to follow the instructions on the product label. Generally, capsules are taken two to three times a day. Consistency is the most important factor when using this herb. Since it works gradually, skipping doses can slow down your progress.

Start slowly: Introduce the herb at a lower dose to see how your body reacts.
Be patient: Give it at least 14 days of consistent use before deciding if it is working for you.
Hydrate: Always take your supplements with plenty of water. Staying hydrated is a foundational part of milk production.

Potential Side Effects and Safety Precautions

For most mothers, goat's rue is very well-tolerated. However, like any herb or supplement, there are potential side effects to keep in mind. Because this herb is related to the development of diabetes medication, the most significant safety concern is its effect on blood sugar.

Hypoglycemia (Low Blood Sugar)

Goat's rue can lower blood sugar levels. If you are otherwise healthy, you might not notice this. However, if you have diabetes or are prone to low blood sugar, you should use this herb with extreme caution. Signs of low blood sugar include:

Dizziness or lightheadedness
Jitters or shakiness
Sudden hunger
Cold sweats

If you take insulin or other medications for blood sugar, consult your doctor before starting goat's rue. It could potentially cause your blood sugar to drop too low when combined with your existing medication.

Other Considerations

Allergies: If you are allergic to peanuts, soybeans, or other legumes (like peas or chickpeas), you should be careful with goat’s rue, as it belongs to the same plant family.
Digestion: Some mothers report mild stomach upset or changes in bowel movements when they first start the herb. This often settles as the body adjusts.
Pregnancy: Do not take goat's rue while you are pregnant. It is intended for use after your baby is born.

This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with your healthcare provider for medical advice.

Combining Goat's Rue with Other Support

While herbal supplements can be a fantastic tool, they work best when combined with the foundational principles of lactation. Milk production is a supply-and-demand system. The more milk that is removed from the breast, the more milk your body is signaled to make.

If you are using goat’s rue to increase supply, consider these additional steps to maximize your results:

Frequent Removal of Milk

Whether you are nursing directly or pumping, aim to empty the breasts frequently. For newborns, this usually means 8 to 12 times in a 24-hour period. If you are pumping, you might consider a "power pumping" session once a day for a week to mimic a baby's cluster feeding. This sends a strong signal to your brain to increase production. You can learn more in our guide on how long you should pump to increase milk supply.

Skin-to-Skin Contact

Spending time skin-to-skin with your baby releases oxytocin, often called the "love hormone." Oxytocin is responsible for the let-down reflex, which is the process of the milk moving from the back of the breast to the nipple. The more relaxed and bonded you feel, the easier it is for your milk to flow.

Hydration and Nutrition

Your body needs extra calories and plenty of fluids to create milk. While you don't need a "perfect" diet, eating nourishing foods and drinking to thirst is essential. Many mothers find that lactation-specific treats help them get those extra nutrients in a delicious way. Our Emergency Brownies are a favorite for a reason—they are packed with ingredients like oats and flaxseed that provide a great nutritional foundation for breastfeeding.

What to do next:

Consult with a lactation professional to rule out latch or transfer issues.

Choose a high-quality goat's rue supplement or blend.

Track your output for two weeks to monitor changes.

Prioritize rest and hydration alongside your herbal support.

When Should You See an IBCLC?

If you are worried about your supply, it is always a good idea to reach out to an International Board Certified Lactation Consultant (IBCLC). While herbs like goat’s rue can help, sometimes the issue is related to the baby’s latch or a tongue tie that prevents the baby from removing milk efficiently. If the milk isn't being removed, the herb won't be able to do its job effectively.

We offer virtual lactation consultations at Milky Mama to help you troubleshoot these issues from the comfort of your home. A professional can help you determine if your supply is truly low or if you are experiencing "perceived low supply," which is very common. They can also help you create a personalized plan that includes the right supplements for your specific body and goals. If you want more hands-on education, our Certified Lactation Consultant Breastfeeding Help page is a great next step.

Is Goat’s Rue Right for You?

Choosing a lactation supplement is a personal journey. Goat's rue is a particularly strong candidate for you if you have been struggling with a low supply that doesn't seem to respond to standard "demand" increases, or if you have specific conditions like PCOS or IGT. It is a gentle but powerful herb that honors the natural process of your body.

Remember that you are doing an amazing job. Breastfeeding is a learned skill for both you and your baby, and it is perfectly normal to need a little extra support along the way. Whether you use goat’s rue or another support method, your commitment to nourishing your baby is what matters most. If you want more confidence from the start, our Breastfeeding 101 course can help you build a strong foundation.

Conclusion

Goat's rue is a time-tested herb that offers a unique approach to boosting milk supply by supporting the growth of mammary tissue and improving insulin sensitivity. While scientific studies are still catching up to traditional wisdom, the evidence we do have is encouraging for many mothers. By taking it consistently and combining it with frequent milk removal and proper hydration, you may see the boost you’ve been looking for.

Goat's rue may help increase milk-producing tissue.
Results typically take 1 to 2 weeks of consistent use.
It is especially helpful for mothers with IGT or PCOS.
Always monitor your blood sugar while using this herb.

If you are ready to try goat’s rue, our Pumping Queen or Dairy Duchess supplements are excellent places to start. They combine high-quality herbs in a way that is easy to add to your daily routine. You’ve got this, mama, and we are here to support you every step of the way.

FAQ

Does goat's rue work for everyone?

Like any supplement, the effectiveness of goat's rue can vary from person to person. While many mothers see a significant increase in supply, others may see a more modest change depending on the underlying cause of their low milk production. It is most effective when used as part of a comprehensive plan that includes frequent nursing or pumping. If you like getting support from other moms too, the Milky Mama Facebook group can be a helpful community space.

How long does it take for goat's rue to increase milk supply?

Goat's rue generally works more slowly than other lactation herbs because it focuses on the development of mammary tissue. Most mothers notice a difference after 1 to 2 weeks of consistent use. It is important to be patient and maintain a regular schedule when taking the herb to see the best results.

Can I take goat's rue if I have diabetes?

You should exercise extreme caution and consult your healthcare provider before taking goat's rue if you have diabetes. Because the herb can lower blood sugar levels, it may interact with your medication or cause hypoglycemia. A medical professional can help you monitor your levels safely if you decide to try it.

Can goat's rue help if I have Insufficient Glandular Tissue (IGT)?

Yes, goat's rue is often the primary herb recommended for mothers with IGT. Because it is believed to stimulate the growth of breast tissue and the development of milk ducts, it can be a helpful tool for those whose breasts did not fully develop during pregnancy. Many lactation consultants suggest it specifically for this purpose.

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Does Goat's Rue Increase Milk Supply?

Table of Contents

Introduction

What is Goat’s Rue?