Does Tea Decrease Breast Milk Supply? What You Need to Know

Posted on April 26, 2026

Introduction
The Short Answer: It Depends on the Ingredients
Herbs That May Decrease Milk Supply
The Role of Caffeine in Your Milk Supply
Can Tea Cause Dehydration and Lower Supply?
Understanding the "Supply and Demand" Principle
Practical Steps for Tea-Loving Parents
When to Seek Professional Support
The Best Teas for Breastfeeding
Summary of Action Steps
Conclusion
FAQ

Introduction

Finding a moment to sit down with a warm cup of tea can feel like a rare luxury when you are caring for a newborn. For many of us, that quiet ritual is a way to recharge and find a little bit of calm in the middle of a busy day. However, it is completely normal to wonder if what you are drinking might impact your nursing journey. You might have heard whispers from other parents or read conflicting advice online about whether certain teas can actually harm your production.

At Milky Mama, we know that every drop counts and that you want to do everything possible to protect your milk supply. We understand the anxiety that comes with wondering if a simple habit is helping or hurting. This article will explore the relationship between different types of tea and lactation, identifying which herbs might decrease supply and which ones are safe to enjoy. We will also look at how caffeine affects your baby and provide practical tips for maintaining a healthy supply.

Our goal is to provide you with the evidence-based information you need to feel confident in your choices. Whether you are looking for a morning pick-me-up or a soothing evening blend, understanding the ingredients in your cup is the first step. Generally, most common teas do not decrease breast milk supply, but there are specific herbal exceptions and caffeine considerations every nursing parent should know.

The Short Answer: It Depends on the Ingredients

The most important thing to know is that "tea" is a very broad category. Most traditional teas, such as black, green, and white tea, come from the Camellia sinensis plant. These are generally considered safe in moderation, though they do contain caffeine. Herbal "teas," on the other hand, are actually infusions made from various roots, flowers, and leaves.

Because herbal teas are not strictly regulated in the same way as food, their effects on lactation can vary significantly. Some herbs are known as galactagogues, which means they may help support milk production. Others are considered anti-galactagogues, which are substances that might decrease or "dry up" milk supply.

If you are noticing a dip in your supply, it is rarely caused by a single cup of standard tea. However, if you are consuming large quantities of specific herbs or very high levels of caffeine, it could play a role. Understanding which ingredients to look for on a label can help you avoid any accidental supply issues.

Herbs That May Decrease Milk Supply

In the world of lactation, there are certain herbs traditionally used to help parents who are ready to wean or who are overproducing milk. While these can be helpful in those specific situations, they can be problematic if your goal is to maintain or increase your supply.

Peppermint and Spearmint

Peppermint is perhaps the most well-known herb associated with a decrease in milk supply. While eating a peppermint candy or having an occasional cup of mint tea is unlikely to cause a noticeable change, consuming large amounts can be an issue. Some parents use strong peppermint infusions or essential oils specifically to help dry up their milk when they are ready to stop breastfeeding.

Sage

Sage is another powerful herb that is frequently recommended by lactation consultants for parents dealing with an oversupply or those who want to wean. It contains compounds that can signal the body to reduce milk production. If you enjoy sage in your cooking, the small amounts used for seasoning a meal are usually fine. However, sage tea or sage supplements should generally be avoided if you are trying to protect your supply.

Parsley

Similar to sage, parsley is an herb that can impact lactation when consumed in high concentrations. While a garnish on your dinner plate is perfectly safe, drinking parsley tea or consuming large quantities in salads (like tabbouleh) might have a drying effect for some people.

Lemon Balm and Oregano

While less common, some herbalists suggest that very high doses of lemon balm or oregano may also have a mild anti-galactagogue effect. Most parents do not consume enough of these in tea form to cause an issue, but it is something to keep in mind if you are a frequent drinker of medicinal-strength herbal blends.

Key Takeaway: If you are worried about your supply, check your herbal tea labels for peppermint, sage, or parsley. While small amounts are usually okay, frequent consumption of these specific herbs might lead to a decrease in milk production.

The Role of Caffeine in Your Milk Supply

Caffeine is a major component of many popular teas, including black, green, oolong, and matcha. One of the most common questions we hear is whether caffeine itself will dry up milk. The good news is that caffeine does not directly decrease the amount of milk your body produces. However, it can affect the breastfeeding relationship in other ways.

How Caffeine Affects the Baby

A small percentage of the caffeine you consume does end up in your breast milk. While most babies handle moderate amounts of caffeine just fine, some are more sensitive than others. Newborns, in particular, take much longer to process caffeine than older babies or adults.

If your baby becomes jittery, irritable, or has trouble sleeping because of your caffeine intake, they may not nurse as effectively. Since milk production is based on supply and demand, a baby who is too fussy to have a full, productive nursing session may not empty the breast well. Over time, this lack of effective milk removal can signal your body to make less milk.

Recommended Caffeine Limits

Most health organizations, including the American Academy of Pediatrics, suggest that nursing parents limit their caffeine intake to about 200 to 300 milligrams per day. For reference:

A cup of black tea usually has 40–70mg of caffeine.
A cup of green tea usually has 25–45mg of caffeine.
A cup of brewed coffee can have 95–200mg of caffeine.

For most people, two to three cups of tea per day fit safely within these guidelines. If you notice your baby is especially wakeful or fussy, you might try reducing your intake for a few days to see if their behavior improves.

Can Tea Cause Dehydration and Lower Supply?

There is a common myth that because tea can act as a mild diuretic (meaning it makes you pee more), it will dehydrate you and cause your milk supply to drop. While it is true that caffeine has a slight diuretic effect, studies show that moderate tea consumption actually contributes to your overall daily fluid intake.

Your body is very good at maintaining its hydration levels. You do not need to drink gallons of water to make milk, but you should drink to satisfy your thirst. If you enjoy a cup of tea, it counts toward your total fluids for the day.

However, if you are replacing all of your water with highly caffeinated tea, you might feel the effects of dehydration, such as headaches or fatigue. While mild dehydration usually won’t tank your supply immediately, being well-hydrated helps your body function at its best, which supports the lactation process.

Better Hydration Alternatives

If you are looking for something flavorful but want to avoid the risks of too much caffeine or "drying" herbs, there are many lactation-friendly options. You can explore our Lactation & Breastfeeding Drinks collection for refreshing choices designed to fit into a busy feeding routine.

Understanding the "Supply and Demand" Principle

Regardless of what you eat or drink, the most significant factor in your milk supply is the "supply and demand" cycle. Your breasts are like a factory, not a warehouse. The more milk is removed, the more milk your body is signaled to produce.

If you are worried that tea has decreased your supply, the best way to reverse that trend is to increase the frequency of milk removal. This can be done by:

Nursing more frequently (offering the breast every 2 hours).
Adding a pumping session after nursing.
Practicing "power pumping" to mimic a baby’s growth spurt.

Tea can be a wonderful part of your self-care routine, but it cannot replace the physical stimulation needed to maintain milk production. If you suspect an herb has caused a dip, simply stop drinking that specific tea and increase your nursing or pumping sessions for a few days. Most parents find their supply bounces back quickly once the offending herb is removed and demand is increased.

Practical Steps for Tea-Loving Parents

If you love your tea and want to continue enjoying it while breastfeeding, here are a few simple steps to ensure your supply stays strong:

Read Every Label: Don't just look at the name of the tea. Check the full ingredient list for "hidden" herbs like sage or peppermint, which are often added to "wellness" or "digestive" blends.
Monitor Your Baby: Watch for signs of caffeine sensitivity, such as unusual fussiness, poor sleep, or difficulty settling down after a feed.
Choose "Milk-Safe" Herbs: Look for teas containing ginger, chamomile, or rooibos. These are generally considered safe and do not have a reputation for decreasing supply.
Prioritize Nutrition: While tea is a great beverage, make sure you are also getting enough calories and nutrients. Our Emergency Lactation Brownies are a favorite for a reason—they provide a delicious way to get lactation-supportive ingredients like oats and flaxseed into your diet.
Balance Your Fluids: For every cup of caffeinated tea you drink, try to drink a glass of plain water as well.

When to Seek Professional Support

Sometimes, a drop in milk supply has nothing to do with what you are drinking. Many factors can influence your production, including:

Hormonal changes (like the return of your period).
Stress or lack of sleep.
An improper latch or ineffective milk removal.
Certain medications (like Sudafed or hormonal birth control).

If you have stopped drinking suspicious teas and have increased your nursing frequency but still feel concerned about your supply, it is a great idea to reach out to an International Board Certified Lactation Consultant (IBCLC). They can help you troubleshoot the root cause of the issue and create a personalized plan to get back on track.

At Milky Mama, we believe that support should be accessible. We offer Certified Lactation Consultant Breastfeeding Help to help you navigate these challenges from the comfort of your home. You don't have to guess whether your tea or your baby's latch is the problem—an expert can give you the clarity you need.

The Best Teas for Breastfeeding

If you are looking for a tea that might actually help your supply, many parents turn to lactation-specific blends. These often contain herbs like:

Moringa: Known for its high nutritional content and potential to support milk production.
Red Raspberry Leaf: Often used to support uterine health and general wellness.
Alfalfa: Rich in vitamins and minerals that can be beneficial during lactation.
Nettle: A nutrient-dense herb often found in nursing teas.

We offer several herbal lactation supplements, and our Lactation Milk Supplements collection is a great place to explore options like Pumping Queen for parents who want additional support alongside their tea routine.

"Every drop counts. Whether you are exclusively breastfeeding, pumping, or doing a mix of both, your effort to provide for your baby is incredible. You're doing an amazing job."

Summary of Action Steps

If you are concerned about tea and your milk supply, follow these simple steps to find peace of mind:

Check your current tea cabinet: Set aside any blends that list peppermint, sage, or parsley as primary ingredients.
Limit caffeine: Stick to 2–3 cups of caffeinated tea per day and monitor your baby's reaction.
Boost the demand: If you feel your supply has dipped, add one extra nursing or pumping session to your daily routine.
Stay hydrated: Drink plenty of water and consider lactation-friendly drinks like Pumpin' Punch™ for a boost in fluids.
Eat well: Support your body’s hard work with nutritious snacks and lactation treats from the Lactation Snacks collection.

Conclusion

The ritual of drinking tea can be a beautiful way to practice self-care during the intense early months of parenthood. While it is true that a few specific herbs like sage and peppermint may decrease milk supply in large amounts, most teas are perfectly safe to enjoy in moderation. By staying mindful of caffeine limits and choosing blends with breastfeeding-friendly ingredients, you can keep your tea habit and your milk supply.

Remember that your supply is largely driven by how often you remove milk, so focus on those sweet nursing sessions and regular pumping breaks. If you ever feel overwhelmed or unsure, we are here to support you with products, education, and expert advice. You have the power to provide for your baby, and we are honored to be a part of your journey.

If you want to keep building confidence with your feeding plan, our Breastfeeding 101 course and Courses collection are helpful next steps for learning the basics and getting practical support.

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

FAQ

Does peppermint tea really dry up milk?

In large medicinal quantities, peppermint is an anti-galactagogue that can help reduce milk supply. While an occasional cup of peppermint tea or a few mints are unlikely to cause a major drop, nursing parents who are struggling with supply issues are generally advised to avoid it.

Can I drink green tea while breastfeeding?

Yes, green tea is generally safe to drink while breastfeeding. It contains less caffeine than black tea or coffee, but you should still keep your total daily caffeine intake around 200–300mg to ensure your baby doesn't become irritable or have trouble sleeping.

How much caffeine is too much for my baby?

Most babies tolerate up to 300mg of caffeine per day from their parent's diet, but every infant is different. If you notice your baby is unusually fussy, jittery, or unable to nap shortly after you consume tea, you may want to lower your intake to see if their behavior improves.

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Does Tea Decrease Breast Milk Supply? What You Need to Know

Table of Contents

Introduction

The Short Answer: It Depends on the Ingredients