What Foods Lower Breast Milk Supply

Posted on March 23, 2026

Introduction
Understanding Antigalactagogues
Herbs That Can Lower Milk Supply
Drinks and Substances to Monitor
Supplements and High-Dose Vitamins
Dietary Habits That Impact Supply
Foods Often Wrongly Accused
How to Support Your Supply
Conclusion
FAQ

Introduction

Many new parents spend hours researching which foods will help increase their milk production. It is completely normal to feel a little anxious about your supply, especially in those early weeks when you are still getting to know your baby’s cues. While we often focus on what to add to our plates, it is just as important to know which ingredients might actually hinder your progress.

At Milky Mama, we believe that education is the first step toward a confident breastfeeding journey. Knowing which foods and herbs to consume in moderation can help you maintain a steady flow and avoid unnecessary stress. While most foods are perfectly safe to enjoy, a few specific items are known as "antigalactagogues"—substances that may decrease milk production.

This article will explore the specific herbs, drinks, and dietary habits that could potentially lower your supply. We will also look at common myths about breastfeeding diets so you can stop worrying about the wrong things. Understanding these factors will empower you to make the best nutritional choices for you and your baby.

Understanding Antigalactagogues

Before we dive into the specific list, it helps to understand the term "antigalactagogue." A galactagogue is a substance that helps increase milk supply. An antigalactagogue does the opposite. These are foods, herbs, or medications that might decrease the amount of milk your body produces.

For most parents, having a small amount of these foods once in a while will not cause a noticeable drop. However, if you are already struggling with a lower supply, these items might have a more significant impact. Some of these ingredients are even used intentionally by parents who are ready to wean and want to dry up their milk supply naturally.

Herbs That Can Lower Milk Supply

Certain herbs are well-known in the lactation community for their ability to reduce milk production. These are often the biggest culprits because they are frequently found in common recipes or teas.

Sage

Sage is perhaps the most famous herb for lowering milk supply. It contains natural compounds that can mimic the effect of estrogen or interfere with the hormones required for lactation. While a tiny pinch in a large pot of soup may not do much, eating large amounts can cause a dip.

You should be especially careful during the holidays or when eating Italian-style dishes. Sage is a primary ingredient in poultry stuffing, sausage seasonings, and many brown butter sauces. If you notice a drop in your supply after a heavy meal featuring these items, sage might be the reason.

Peppermint and Spearmint

Menthol, which is found in high concentrations in peppermint and spearmint, is another known antigalactagogue. Many breastfeeding parents find that drinking several cups of peppermint tea or eating a lot of peppermint candies can lead to a decrease in milk.

It is important to note that this usually requires a significant amount of the herb. A single peppermint patty or brushing your teeth with mint toothpaste is unlikely to cause a problem. However, if you are using strong peppermint essential oils or drinking concentrated mint infusions, you may want to scale back.

Parsley

Parsley is a common garnish, but in large quantities, it can act as a diuretic. Historically, it has been used in medicinal doses to help dry up breast milk for those who are weaning. While the occasional sprig of parsley on your dinner plate is fine, avoid eating large amounts of dishes like tabbouleh, which uses parsley as a primary salad green.

Jasmine

While less common in Western cooking, jasmine is sometimes used in teas or as a floral flavoring. Some studies and traditional practices suggest that jasmine can lower prolactin levels. Prolactin is the hormone responsible for telling your body to make milk. If you enjoy floral teas, it may be safer to stick to blends that do not list jasmine as a main ingredient.

Key Takeaway: If you are worried about your supply, be mindful of "medicinal" amounts of sage, peppermint, and parsley, as these herbs are traditionally used to help dry up milk.

Drinks and Substances to Monitor

What you drink is just as important as what you eat when it comes to maintaining a healthy milk supply. Some beverages can indirectly lead to a drop by affecting your hydration or your hormones.

Alcohol

There is a long-standing myth that drinking a dark beer can help increase milk supply. Unfortunately, the science suggests the opposite. While the barley in beer might have some lactogenic properties, the alcohol itself is problematic.

Alcohol can inhibit the let-down reflex. The let-down reflex is the process where your body releases milk from the ducts so your baby can drink it. When this reflex is suppressed, the baby may not get enough milk, and your breasts may not be fully emptied. Over time, failing to empty the breasts tells your body to produce less milk. Alcohol is also dehydrating, and staying hydrated is essential for milk production.

Excessive Caffeine

Most parents can safely enjoy a cup or two of coffee each day. However, high amounts of caffeine can lead to dehydration. Caffeine is a diuretic, meaning it makes you lose fluids more quickly. Since breast milk is mostly water, being severely dehydrated can cause your supply to dip.

Furthermore, caffeine passes into breast milk. If your baby becomes fussy or restless because of the caffeine, they may not nurse as effectively. Poor nursing sessions can lead to a decrease in supply over time because of the "supply and demand" nature of breastfeeding.

Sugary Sodas and Fruit Drinks

While a soda won't directly "poison" your milk, it provides empty calories without any nutritional benefit. If you are filling up on sugary drinks, you might be missing out on the nutrient-dense foods and water your body needs to function optimally. High sugar intake can also lead to energy crashes, making the already difficult job of parenting even more exhausting.

Supplements and High-Dose Vitamins

While vitamins are generally good for you, more is not always better. Some supplements can have an unintended effect on lactation.

Excessive Vitamin C and B-Complex

Some lactation consultants have observed that very high doses of Vitamin C or certain B vitamins can act similarly to an antihistamine. Antihistamines are known for drying up mucus membranes, and in some cases, they may also "dry up" milk supply.

While the amount of Vitamin C in an orange or a standard prenatal vitamin is perfectly safe, be cautious with high-dose "immune-boosting" packets or supplements. Always stick to the recommended daily allowance unless your doctor tells you otherwise.

A Note on Safety

This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with your healthcare provider for medical advice. It is always best to speak with a professional before starting any new herbal supplement or high-dose vitamin regimen while breastfeeding.

Dietary Habits That Impact Supply

Sometimes it isn't a specific food that causes the problem, but rather the way you are eating.

Extreme Calorie Restriction

It is natural to want to return to your pre-pregnancy weight, but breastfeeding is not the time for restrictive dieting. Your body needs approximately 500 extra calories per day to produce a full milk supply. If you drop your calorie intake too low or too quickly, your body may go into "survival mode" and prioritize your own vital functions over milk production.

Instead of counting every calorie, focus on eating whole, nourishing foods. If you need a snack that supports your goals, our Emergency Lactation Brownies are a favorite for a reason. They provide a delicious way to get in extra calories and milk-supporting ingredients like oats and flaxseed without the stress of meal prep.

Dehydration

As mentioned earlier, breast milk is about 90% water. If you are not drinking enough fluids, your body will struggle to maintain production. You do not need to force-feed yourself gallons of water, but you should drink to satisfy your thirst.

Many parents find it helpful to drink a glass of water every time the baby nurses. If you struggle with the taste of plain water, hydration-focused lactation drink mixes can help. We offer options like Pumpin Punch™ and Milky Melon™ that provide hydration along with lactation-supporting ingredients to make staying hydrated more enjoyable.

Foods Often Wrongly Accused

There are many myths about what you "can't" eat while breastfeeding. Most of these are based on old wives' tales rather than science.

Spicy Foods

Many people believe that spicy foods will make the milk spicy or cause the baby to have an upset stomach. In reality, spicy food does not lower your supply. While strong flavors like garlic or chili can slightly change the taste of your milk, most babies actually enjoy the variety. Exposure to different flavors in breast milk can even make your baby more open to trying new solid foods later on.

Gassy Vegetables

Foods like broccoli, cabbage, and beans are known for causing gas in adults. However, the gas itself does not pass into your breast milk. The nutrients from these vegetables enter your bloodstream and then your milk, but the gas stays in your digestive tract. Unless your baby has a specific sensitivity or allergy to a protein in these foods, they are perfectly safe to eat and provide excellent nutrition.

Chocolate

While chocolate contains a small amount of caffeine and a stimulant called theobromine, it does not lower milk supply. Unless you are eating massive quantities of very dark chocolate that make your baby jittery, there is no reason to cut it out.

What to Do Next:

Check your spice cabinet and labels for hidden sage or parsley.

Swap your afternoon peppermint tea for a caffeine-free fruit tea or a hydration drink.

Focus on "supply and demand" by nursing or pumping frequently.

Ensure you are eating enough calories from a variety of food groups.

How to Support Your Supply

If you have accidentally consumed something that caused your supply to dip, don't panic. For most people, the effect is temporary. The best way to bring your supply back up is to increase the frequency of milk removal.

Increase Nursing and Pumping

The more often you empty your breasts, the more milk your body will make. If you notice a dip, try adding an extra pumping session or a "power pumping" hour to your day. You can also try to have a "nursing vacation" where you spend a day in bed with your baby doing as much skin-to-skin contact and nursing as possible.

For more ideas, read this guide on how to even out breast milk supply.

Focus on Galactagogues

Once you have removed the foods that might be lowering your supply, you can focus on adding in foods that support it. Oats, flaxseed, and brewer's yeast are traditional favorites. Our Pumping Queen™ herbal supplement or Lady Leche™ lactation supplements are designed to provide support for those looking to boost their production naturally.

Manage Stress

Stress can inhibit the let-down reflex just as much as alcohol can. When you are stressed, your body produces adrenaline, which can block oxytocin—the hormone responsible for milk release. Taking a few minutes for yourself, practicing deep breathing, or simply knowing that you are doing an amazing job can make a big difference in how your body responds.

Conclusion

While it is important to be aware of what foods lower breast milk supply, remember that your diet does not have to be perfect. Most breastfeeding parents can enjoy a wide variety of foods without any issues. By being mindful of sage, peppermint, and parsley, and by staying well-hydrated and fed, you are already doing a great job.

Every drop of milk you provide is a gift to your baby, and your well-being matters just as much as theirs. If you ever feel overwhelmed or concerned about your supply, reaching out for support is a sign of strength, not a failure.

Final Thoughts: Most "supply killers" only have an effect in large, medicinal doses. Focus on consistent milk removal and nourishing your body with plenty of calories and fluids to keep your journey on track.

If you are looking for a simple, tasty way to support your supply, try incorporating one of our lactation treats into your daily routine. We are here to support you every step of the way.

FAQ

Does eating peppermint really dry up breast milk?

Peppermint contains menthol, which can reduce milk supply if consumed in large amounts, such as several cups of strong peppermint tea per day. Most parents find that occasional or small amounts of peppermint do not cause a noticeable problem. If you notice a dip after eating mint, try switching to a different herb like ginger or lemon.

Can I eat sage while I am breastfeeding?

Sage is one of the most well-known herbs for reducing milk supply and is often used by people who are trying to wean. While a small amount used as a seasoning in a large meal is usually fine, you should avoid concentrated sage tea or large servings of sage-heavy dishes if you are worried about your supply. It is best to use this herb sparingly until your supply is well-established.

Will drinking coffee make my milk supply go down?

Coffee itself doesn't lower milk supply, but the caffeine can lead to dehydration if you drink it in excess. Dehydration is a common cause of a temporary supply dip, so it is important to balance your coffee intake with plenty of water. Additionally, if the caffeine makes your baby too fussy to nurse well, your supply might decrease due to less frequent milk removal.

Is it true that parsley can stop milk production?

€23,62 EUR

Subscribe & Save: 10% off

SHOP NOW

About Milky Mama

Support

Stay Connected