Does Green Tea Help Milk Supply? What Breastfeeding Moms Should Know
Posted on April 01, 2026
Posted on April 01, 2026
It is 3:00 AM, and you are sitting in the quiet stillness of your nursery, the only sound being the rhythmic pattern of your baby’s breathing. In these moments of deep connection, it is completely natural to find your mind wandering toward your health and your milk supply. You might be wondering if that soothing cup of green tea you enjoyed earlier in the day was doing more than just calming your nerves—could it actually be helping you produce more milk? Or, perhaps more worryingly, could it be hindering your progress?
As breastfeeding parents, we are often hyper-aware of every single thing we put into our bodies. We know that what we consume can pass through our milk, and we want to ensure we are giving our little ones the very best start possible. Green tea is widely celebrated for its health benefits in the general population, but the rules can feel a bit more complicated when you are lactating. We often hear conflicting advice: some cultures swear by it as a traditional remedy for low supply, while others warn that the caffeine content might cause issues for a sensitive newborn.
The purpose of this post is to clear up the confusion. We are going to dive deep into the science behind green tea, explore whether it truly acts as a galactagogue (a substance that increases milk supply), and discuss the safety considerations you need to keep in mind for both yourself and your baby. At Milky Mama, we believe that knowledge is empowering. We want you to feel confident in your choices, whether you are reaching for a warm mug of tea or one of our specialized lactation supports.
In short, while green tea offers incredible antioxidants and a gentle energy boost, its role in increasing milk supply is more nuanced than a simple "yes" or "no." By the end of this article, you’ll understand how to balance your love for tea with your breastfeeding goals, ensuring that every drop counts while keeping your well-being a top priority.
When we look at the question of whether green tea increases milk supply, we have to look at both traditional wisdom and modern scientific research. In certain parts of the world, such as Turkey, green tea has been used for generations by nursing mothers with the belief that it helps support lactation. However, when we turn to clinical studies, the evidence is a bit more sparse.
There is no definitive scientific proof that drinking green tea directly causes the body to produce more milk. Unlike some herbs that have a more direct hormonal influence, green tea’s impact on lactation is often indirect. For some parents, the ritual of sitting down with a warm cup of tea provides a much-needed moment of relaxation. Since stress and high cortisol levels can actually inhibit the "let-down reflex" (the process that allows milk to flow from the breasts), anything that helps you relax may indirectly support your breastfeeding journey.
That said, some animal studies—specifically those conducted on rats—have shown that certain phenolic extracts found in green tea might stimulate the mammary glands. While we cannot always translate animal studies directly to human experiences, it suggests there may be components in the plant that interact with the biological processes of lactation.
One reason some moms feel their supply improves when they drink tea is simply the increased fluid intake. Breast milk is about 88% water. If you are not drinking enough fluids, your body may struggle to maintain its optimal production levels. While we don't recommend forcing down gallons of water, staying hydrated is essential.
If you find plain water boring, green tea can be a flavorful way to reach your hydration goals. However, if you are worried about caffeine, you can get those same hydration benefits (with even more lactation support) from our Lactation LeMOOnade™ or Pumpin Punch™.
To understand how green tea affects you and your baby, we need to look at its primary components: caffeine, l-theanine, antioxidants, and tannins.
Caffeine is usually the first thing breastfeeding parents worry about. Green tea naturally contains caffeine, though significantly less than a standard cup of coffee. On average, an 8-ounce cup of green tea contains between 24 and 45 milligrams of caffeine, whereas a cup of brewed coffee can range from 95 to 200 milligrams.
While most of the caffeine you consume stays in your system, a small amount (usually less than 1%) does pass into your breast milk. For most healthy, full-term babies, this tiny amount isn't an issue. However, newborns and premature infants process caffeine much more slowly than adults. If you find yourself drinking several cups a day, that caffeine can accumulate in your baby’s system, potentially leading to fussiness or difficulty sleeping.
One of the unique things about green tea is an amino acid called l-theanine. This is what gives green tea its reputation for providing "calm energy." L-theanine promotes relaxation without drowsiness and can help counteract the "jittery" effects of caffeine. For a busy mom, this can be a wonderful benefit. However, there hasn't been extensive research on how l-theanine specifically behaves in breast milk, so moderation is always the best approach.
Green tea is a powerhouse of polyphenols, particularly a type called catechins (like EGCG). These antioxidants are incredible for your health, helping to reduce inflammation and protect your cells from damage. One specific polyphenol found in green tea is quercetin. Interestingly, research has shown that quercetin can be detected in breast milk, meaning your baby might even be getting a tiny boost of these protective compounds through your milk!
This is a point that many people overlook. Green tea contains tannins, which are bitter-tasting compounds that can interfere with how your body absorbs iron from plant-based foods. Since many postpartum parents are already at risk for low iron or anemia, this is something to watch. If you are struggling with low iron, we often recommend enjoying your green tea between meals rather than with them to ensure you are absorbing as much iron as possible from your diet.
Every baby is unique. Some babies can sleep through a thunderstorm even if their parent has had a double espresso, while others are sensitive to even a small cup of tea. If you are wondering if the caffeine in your green tea is affecting your little one, keep an eye out for these signs:
If you notice these patterns, you don't necessarily have to give up your tea entirely. You might try switching to a decaffeinated version or simply timing your tea consumption so it happens right after a nursing session, giving your body more time to process the caffeine before the next feed.
Note: This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with your healthcare provider for medical advice.
Let's look at a real-world scenario. Imagine a mom named Sarah. Sarah is six weeks postpartum and is back to work part-time. She loves her morning ritual of green tea because it helps her feel alert during her morning meetings without the heavy crash she gets from coffee. However, she’s noticed her milk supply seems a bit lower on the days she is most stressed.
For Sarah, the green tea isn't "drying up" her milk. Instead, the caffeine might be making her feel slightly more dehydrated, or perhaps she is so busy drinking tea and working that she is forgetting to drink her actual water.
In this case, we would suggest that Sarah continues to enjoy her tea but pairs it with one of our Lactation Drinks. By adding something like Milky Melon™ to her routine, she can ensure she is staying hydrated while also getting ingredients specifically chosen to support her supply.
If you are looking for a drink that is specifically designed to boost milk supply—rather than just being "safe" to drink—there are many incredible herbs to consider. At Milky Mama, we specialize in creating blends that are effective and delicious, without using common irritants.
When choosing a supplement or tea to increase your supply, it is important to look for specific galactagogues. Some of our favorites include:
By focusing on these targeted herbs, you can feel more confident that you are actively supporting your body's ability to produce milk.
While what you drink matters, breastfeeding is ultimately a system of supply and demand. If you want to increase your milk supply, the most effective way is to ensure that your breasts are being emptied frequently and effectively.
The more often your baby (or your pump) removes milk, the more milk your body will make. When the breast is empty, it sends a signal to your brain to produce more. If the breast stays full for too long, a protein called Feedback Inhibitor of Lactation (FIL) builds up, telling your body to slow down production.
If you are struggling with a dip in supply, many parents find "power pumping" helpful. This involves mimicking a baby’s "cluster feeding" by pumping for short bursts with breaks in between (e.g., pump for 20 minutes, rest for 10, pump for 10, rest for 10, pump for 10). This can be a great way to jumpstart your supply. While you power pump, why not snack on some Oatmeal Chocolate Chip Cookies? They are delicious and filled with oats, which are a known supply-booster.
Never underestimate the power of a "baby moon." Spending time skin-to-skin with your baby releases oxytocin, the "love hormone." Oxytocin is responsible for the let-down reflex and can help you feel more connected and relaxed, which is a major win for your milk supply.
While many teas are safe, there are some herbs that breastfeeding parents should use with caution or avoid entirely if they are struggling with low supply.
If you are ever unsure about an herb, we highly recommend booking one of our virtual lactation consultations. Our IBCLCs can help you navigate these choices and create a plan tailored to your specific needs.
At Milky Mama, we know that breastfeeding is natural, but it doesn't always come naturally. That’s why we’ve created a range of products designed to support you at every stage of your journey. Whether you are looking for a quick snack or a daily supplement, we have something to help you feel your best.
Our treats are more than just a snack; they are a moment of self-care.
For those who want a more concentrated boost, our herbal supplements are easy to incorporate into a busy schedule.
We cannot talk about milk supply without talking about mental health. Breastfeeding is as much a mental game as it is a physical one. When you are stressed, exhausted, or feeling unsupported, your body’s ability to release milk can be hindered.
This is where the "ritual" of green tea comes in. If taking 10 minutes to sip a warm cup of tea allows you to breathe and center yourself, that is a huge benefit for your supply. Relaxation triggers the release of oxytocin, which allows your milk to flow.
If you find that your stress levels are high, remember that you don't have to do this alone. Joining a community like The Official Milky Mama Lactation Support Group on Facebook can provide you with a safe space to ask questions, share your struggles, and celebrate your wins with people who truly understand.
Let’s bust a few myths that often circulate in parenting forums.
Myth 1: Green tea will completely dry up your milk. Fact: There is no evidence that moderate amounts of green tea will "dry up" your milk. As long as you are staying hydrated and removing milk frequently, a cup or two of green tea is unlikely to have a negative impact.
Myth 2: You have to "pump and dump" after drinking green tea. Fact: Absolutely not! The amount of caffeine in green tea is quite low. Unless you have consumed an extreme amount of caffeine (more than 5-10 cups in a short period) or your baby is showing extreme sensitivity, there is no need to throw away your "liquid gold."
Myth 3: Green tea is the best way to lose "baby weight" while breastfeeding. Fact: While green tea can support metabolism, the best way to lose weight safely while breastfeeding is through a balanced diet and gentle movement. Rapid weight loss can actually lead to a decrease in milk supply. Focus on nourishing your body with nutrient-dense foods like those found in our Oatmeal Cookies.
When choosing any tea or supplement while breastfeeding, quality matters. Look for organic options whenever possible to avoid pesticide residues. Also, be wary of "detox" or "slimming" teas, as these often contain laxatives or harsh herbs that are not safe for breastfeeding babies.
Always check the ingredient label. Many commercial tea blends contain "natural flavors" or hidden additives. At Milky Mama, we pride ourselves on transparency. Our products are created by an RN, BSN, IBCLC, and are designed with the safety of both parent and baby in mind.
Disclaimer: This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with your healthcare provider for medical advice.
While green tea is a small part of the puzzle, your overall diet plays a significant role in how you feel. You don't need a "perfect" diet to breastfeed—your breasts were literally created to feed human babies, and your body will prioritize your baby’s needs even if your intake isn't ideal. However, eating well helps you stay energized.
Remember, you’re doing an amazing job. Whether you are nursing, pumping, or a combination of both, every drop counts. Your well-being is just as important as your baby’s, so make sure you are taking the time to feed yourself too!
So, does green tea help milk supply? The answer is that while it may not be a powerful galactagogue on its own, it can certainly be part of a healthy, supportive breastfeeding lifestyle. Its antioxidants and relaxation-promoting properties can help you stay healthy and calm, which are both essential for a successful lactation journey. Just remember to keep an eye on your caffeine intake, stay hydrated, and listen to your baby’s cues.
Breastfeeding is a journey filled with ups and downs, but you don't have to navigate it by yourself. At Milky Mama, we are here to provide the products, education, and community you need to reach your feeding goals, whatever they may be. From our virtual classes like Breastfeeding 101 to our delicious lactation snacks, we have your back.
If you are looking for more tips, support, or a little bit of daily inspiration, be sure to follow us on Instagram and join our community. You’ve got this, Mama!
Most experts, including those from the American Academy of Pediatrics, suggest limiting caffeine intake to about 200–300 mg per day. Since an average cup of green tea contains 24–45 mg of caffeine, drinking 1 to 3 cups a day is generally considered safe for most breastfeeding parents and their babies.
Decaf green tea is a great option if you notice your baby is sensitive to caffeine. While it still contains trace amounts of caffeine, it is significantly lower than regular green tea. It provides the same antioxidants and hydration benefits without the stimulant effects, making it a "supply-neutral" and safe choice.
Yes, some mothers find relief by applying warm, wet green tea bags to sore or cracked nipples. The tannins in the tea may have a soothing effect. However, ensure you rinse your nipples before the next feed to ensure your baby doesn't ingest any concentrated tea residue, and always consult a lactation consultant if pain persists.
If your primary goal is to boost production, herbal "mother’s teas" containing galactagogues like Moringa, Nettle, or Alfalfa are often more effective than green tea. Our Milk Goddess™ and Milky Maiden™ supplements are specifically designed with these potent herbs to support supply.