What Foods Not Eat While Breastfeeding: A Helpful Guide

Posted on January 26, 2026

Navigating Your Plate: What Foods to Consider Limiting While Breastfeeding

Introduction
The Truth About the Breastfeeding Diet
Caffeine and Your Nursing Baby
Alcohol and Breastfeeding Safety
Fish and Mercury Concerns
Herbs That May Lower Milk Supply
The Myth of "Gassy" Foods
Managing Strong Flavors: Garlic and Spice
Understanding Food Sensitivities and Allergies
Hydration and Its Role in Your Diet
Why "Every Drop Counts"
Practical Tips for Your Breastfeeding Kitchen
How to Support Your Supply Naturally
When to Seek Professional Help
Summary of Foods to Limit or Avoid
Conclusion
FAQ

Introduction

Choosing what to eat while nursing often feels like navigating a never-ending list of rules. After months of pregnancy restrictions, you might feel ready to dive back into your favorite meals, yet find yourself hesitating at every bite. It is completely normal to feel a bit anxious about how your diet might affect your little one or your milk supply.

At Milky Mama, we believe that breastfeeding support should feel compassionate and empowering, not like a list of chores. If you need extra reassurance, our breastfeeding help page is a good place to start. Our goal is to help you understand that while your body is doing the incredible work of nourishing another human, you deserve to feel nourished too. We want to clear up the confusion around what foods not eat while breastfeeding so you can focus on bonding with your baby.

This post covers which items are best limited, which are truly off-limits, and how to tell if your baby is reacting to something in your diet. Most importantly, we want to remind you that your milk is nutritionally wonderful regardless of your "perfect" diet. We are here to provide the clinical expertise and friendly support you need to navigate this journey with confidence.

The Truth About the Breastfeeding Diet

One of the biggest myths in the lactation world is that a person must eat a "perfect" diet to produce high-quality milk. We want to reassure you right now: your body is incredibly efficient. Even if your diet isn't always balanced, your body prioritizes your baby’s needs, ensuring your milk contains the essential nutrients they need to thrive.

Breastfeeding is natural, but it doesn't always come naturally, and the pressure to eat a certain way can add unnecessary stress. For most families, the best approach is a varied diet full of whole foods. However, many parents find that they need a little extra support to maintain their energy and supply. Our Emergency Brownies are one of our most-loved lactation treats, packed with oats and flaxseed to help support supply while giving you a delicious, much-deserved snack.

Instead of focusing on a long list of forbidden items, think of your diet as a tool for your own wellness. When you feel good, you are better equipped to handle the demands of early parenthood. While there are a few things to keep an eye on, the list of foods to completely avoid is actually quite short.

Caffeine and Your Nursing Baby

Most of us rely on a little caffeine to get through the day, especially when sleep is hard to come by. The good news is that you do not have to give up your morning coffee. Most lactation experts agree that moderate caffeine intake is perfectly safe for breastfeeding families.

Caffeine does pass into breast milk, but usually in very small amounts. The general recommendation is to limit your intake to about 300 milligrams per day. This is roughly the amount found in two to three small cups of coffee. Keep in mind that caffeine is also found in tea, soda, energy drinks, and even chocolate.

Some babies, especially newborns, are more sensitive to caffeine than others. Because their systems are still developing, they may take longer to process it. If you notice your baby is unusually fussy, jittery, or having a hard time napping after you’ve had your espresso, you might try reducing your intake or timing your coffee for right after a feeding session.

Key Takeaway: Most parents can enjoy 2–3 cups of coffee daily without it affecting their baby, but monitor your little one for signs of restlessness or wakefulness.

Alcohol and Breastfeeding Safety

The question of alcohol is a common one for new parents. For a long time, the advice was "pump and dump," but we now know that this isn't usually necessary. Alcohol levels in your milk are generally the same as the alcohol levels in your blood. As your body processes the alcohol and your blood alcohol level drops, the level in your milk drops too.

The American Academy of Pediatrics suggests that an occasional alcoholic beverage is not known to be harmful to a nursing infant. A good rule of thumb is to wait about two hours after finishing one standard drink (like a 5-ounce glass of wine or a 12-ounce beer) before you nurse again. This gives your body time to clear the alcohol from your system.

If you are feeling "tipsy" or impaired, it is best to wait to nurse or have someone else give the baby a bottle of previously expressed milk. You don't need to throw away milk you pump while alcohol is in your system unless you are doing so for physical comfort. Once you are sober, your milk is safe for your baby again.

Fish and Mercury Concerns

Fish is an excellent source of protein and healthy omega-3 fatty acids, which are great for your baby's brain development. However, certain types of fish can be high in mercury. Mercury is a heavy metal that can pass through breast milk and potentially affect a baby’s developing nervous system.

While most fish are safe and healthy to eat once or twice a week, there are specific types you should avoid or limit strictly:

Shark
Swordfish
King Mackerel
Tilefish
Bigeye Tuna

Instead of these, opt for lower-mercury options like salmon, pollock, shrimp, or canned light tuna. These provide all the benefits of fish without the high mercury risk. If you enjoy sushi, it is generally considered safe while breastfeeding, provided the fish used is from a low-mercury source and handled properly.

Herbs That May Lower Milk Supply

In the world of lactation, we often talk about galactagogues. A galactagogue is a substance—usually a food, herb, or medication—that may help increase milk supply. However, there is also the opposite: anti-galactagogues. These are substances that may actually decrease your milk production.

While eating a small amount of these herbs in your dinner is unlikely to cause a problem, consuming them in high medicinal doses (like in strong teas or supplements) could lead to a dip in supply for some people.

Peppermint

Peppermint is a common herb that many people find soothing for digestion. However, in large quantities, it has been linked to a decrease in milk supply. If you love peppermint tea, try to limit yourself to one cup occasionally rather than drinking it all day long.

Sage

Sage is often used in cooking, especially around the holidays. While a little sage on your chicken or in your stuffing is usually fine, concentrated sage supplements or very strong sage tea are sometimes used by parents who are trying to stop breastfeeding because of its supply-lowering potential.

Parsley

Similar to sage, parsley in small amounts as a garnish is safe. However, eating large quantities—such as in a big bowl of tabbouleh salad—may cause a noticeable drop in milk for some nursing parents. If you’re concerned about your supply, we offer several herbal lactation supplements like Lady Leche that are specifically designed to support milk production using supportive ingredients.

What to do next:
- Check your herbal tea ingredients for high concentrations of peppermint or sage.
- Monitor your milk output if you have recently increased your intake of these herbs.
- If you notice a dip, focus on frequent nursing and hydration.
- Consider a lactation-supportive drink like our lactation drink mixes for a hydration boost.

The Myth of "Gassy" Foods

Many parents are told they must avoid "gassy" vegetables like broccoli, cabbage, cauliflower, and beans. The theory is that if these foods make the parent gassy, they will make the baby gassy too. However, biologically, this isn't how it works.

Gas is produced in your digestive tract when bacteria break down fiber. The gas itself does not pass into your bloodstream or your breast milk. While some babies may be sensitive to the proteins in certain foods, the "gas" from your broccoli doesn't travel into your milk.

If you find that your baby is consistently fussy after you eat a specific food, it is okay to take a break from it and see if things improve. But for most families, there is no reason to skip these nutritious vegetables. We want you to enjoy your meals without fear!

Managing Strong Flavors: Garlic and Spice

You may have heard that spicy foods or garlic will turn your baby off from nursing because they change the flavor of your milk. It is true that flavors from your diet can subtly change the taste of your milk. Fun fact: your baby was actually exposed to many of these flavors in the amniotic fluid during pregnancy!

In many cultures, spicy and garlicky foods are staples of the daily diet. Breastfeeding parents in these cultures continue to eat these foods without any issues. In fact, exposing your baby to various flavors through your milk may actually help them be more adventurous eaters when they start solid foods later on.

If you enjoy spicy food, feel free to keep it on the menu. If your baby seems to pull away or act fussy after a particularly garlicky meal, they might just be adjusting to the new taste. Unless the baby seems genuinely distressed or develops a rash, there is usually no need to change your spice level.

Understanding Food Sensitivities and Allergies

While most babies handle whatever their parents eat just fine, some babies do have genuine sensitivities or allergies to proteins that pass through breast milk. This is different from the baby simply not liking a flavor; it is an immune system or digestive reaction.

The most common culprit for food sensitivities in breastfed babies is cow's milk protein. This is often referred to as a Cow's Milk Protein Allergy (CMPA) or sensitivity. When a parent consumes dairy, the proteins enter the milk, and some babies' systems react to them.

Signs of a Potential Sensitivity

If your baby has a food sensitivity, you might notice symptoms that go beyond typical newborn fussiness. These can include:

Excessive spit-up or vomiting
Severe colic or inconsolable crying
Diarrhea or very green, mucusy stools
Blood in the stool (this is a major red flag)
Eczema or hives
Congestion or wheezing

If you notice these signs, it is important to consult with your pediatrician or a certified lactation consultant. They may recommend an elimination diet where you remove a specific food—usually dairy or soy—for a few weeks to see if the baby’s symptoms improve.

Takeaway: Do not start a restrictive elimination diet without professional guidance. It is important to ensure you are still getting the nutrients you need while identifying the baby's triggers.

Hydration and Its Role in Your Diet

While we are talking about what not to eat, it is equally important to talk about what you should be drinking. Proper hydration is essential for your well-being and can support your milk production. Your body needs water to produce milk and to keep your own energy levels up.

You don't need to force yourself to drink gallons of water, but you should drink to satisfy your thirst. A great trick is to have a glass of water every time you sit down to nurse or pump. If you find plain water boring, our Lactation LeMOOnade™ is a fantastic way to stay hydrated while enjoying a tasty treat designed for nursing moms.

Why "Every Drop Counts"

At Milky Mama, we often say that every drop counts. This applies to the milk you make, but also to the care you give yourself. If you are stressed about every morsel of food you put in your mouth, it can take away from the joy of these early months.

Breastfeeding is a journey that looks different for everyone. Some parents find they can eat anything and everything, while others have to be more cautious because of a baby's sensitive tummy. Neither path is "better" than the other. What matters most is that you feel supported and that your baby is growing and thriving.

If you ever feel overwhelmed by conflicting advice, remember that your breasts were literally created to feed human babies. Your body knows what it's doing. Trust your instincts, watch your baby, and reach out for professional support if you have concerns about supply or sensitivities.

Practical Tips for Your Breastfeeding Kitchen

Navigating your diet doesn't have to be complicated. Here are a few practical ways to keep your nutrition on track without the stress:

Meal Prep Simple Snacks: Keep easy-to-grab items like nuts, fruit, and yogurt on hand.
Don't Skip Meals: It can be hard to find time to eat with a newborn, but your body needs those extra 450–500 calories a day to support lactation.
Listen to Your Baby: Instead of following a generic "do not eat" list, watch your baby for reactions. Every baby is unique.
Keep Your Prenatal Vitamin: Many healthcare providers recommend continuing your prenatal or a postnatal vitamin to fill in any nutritional gaps.
Trust Expertise: If you're worried about your supply or what you're eating, talk to an IBCLC. They can provide evidence-based guidance tailored to your specific situation. If you want a deeper dive into diet guidance, read our breastfeeding diet guide.

How to Support Your Supply Naturally

If you are worried that something you ate caused a dip in your supply, the best thing you can do is go back to the basics: frequent milk removal. Breast milk production works on a supply-and-demand system. The more often you nurse or pump, the more milk your body will be signaled to make.

You can also incorporate supportive snacks into your routine. Our lactation snacks collection and treats are designed to be a convenient way for busy parents to get lactation-supportive ingredients like brewer’s yeast and oats.

Remember, your well-being matters too. A happy, fed parent is a better parent. If having a slice of pizza or a small latte makes your day better, go for it! Moderation is the key to a sustainable and happy breastfeeding experience.

When to Seek Professional Help

While most dietary concerns can be managed with a little observation, there are times when you should seek professional advice. If your baby is failing to gain weight, has blood in their stool, or seems to be in constant pain, please reach out to your healthcare provider or an International Board Certified Lactation Consultant (IBCLC).

We offer virtual lactation consultations to help you navigate these challenges from the comfort of your home. Whether it's a latch issue or a question about a potential food allergy, having an expert in your corner can make all the difference. You don't have to figure this out alone. If you want ongoing support beyond this article, our lactation supplements collection may be a helpful next step.

Summary of Foods to Limit or Avoid

To make things easy, here is a quick summary of the foods and drinks we’ve discussed:

High-Mercury Fish: Avoid Shark, Swordfish, King Mackerel, and Tilefish.
Caffeine: Limit to about 300mg (2–3 cups of coffee) per day and watch baby for jitters.
Alcohol: Wait 2 hours per drink before nursing, or nurse right before having a drink.
Supplements/Herbs: Be cautious with medicinal amounts of Peppermint, Sage, and Parsley.
Common Allergens: Only avoid dairy or soy if your baby shows symptoms of a sensitivity and you've consulted a professional.

Conclusion

The journey of breastfeeding is filled with many questions, especially when it comes to what you put in your body. While it is important to be mindful of things like mercury and high doses of certain herbs, the list of foods to avoid while breastfeeding is much smaller than most people think. Most parents can enjoy a wide variety of flavors, spices, and treats while successfully nourishing their babies.

Remember, you are doing an amazing job. Breastfeeding is a huge commitment, and your dedication to your baby's health is wonderful. Don't let a long list of "diet rules" steal your joy. Focus on staying hydrated, eating for energy, and watching your baby for their own unique cues.

At Milky Mama, we are here to empower you with the products and education you need to reach your breastfeeding goals. Whether you're looking for a boost from our Lady Leche supplement or just a delicious snack like our lactation cookies, we’ve got your back. Every drop counts, and so does your peace of mind.

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

FAQ

Can I eat spicy food while breastfeeding?

Yes, most babies tolerate spicy foods perfectly well. The flavors may subtly change the taste of your milk, but this is generally not harmful and may even help your baby accept a wider variety of solid foods later on. If you notice your baby is particularly fussy after a spicy meal, you can try reducing the heat, but there is no medical reason to avoid spices if they don't bother your little one.

Does peppermint really reduce milk supply?

In large, medicinal quantities—such as several cups of strong peppermint tea or peppermint supplements—it may cause a dip in supply for some people. However, eating a peppermint candy or having a small amount of peppermint flavoring in food is unlikely to have a noticeable effect. If you are already struggling with low supply, it is safest to limit peppermint as a precaution.

How long should I wait to nurse after having a glass of wine?

The general recommendation is to wait approximately two hours after consuming one standard alcoholic beverage before nursing. This allows time for your body to metabolize the alcohol so that the levels in your breast milk drop. If you have more than one drink, the waiting period should be extended accordingly.

Is it safe to eat sushi while breastfeeding?

Subscribe & Save: 10% off

SHOP NOW

Your cart is empty

Your cart

Estimated total

About Milky Mama

Support