Do Cashews Increase Milk Supply? The Facts for Moms

Posted on March 09, 2026

Introduction
What Exactly Are Galactagogues?
The Nutritional Power of Cashews for Nursing Moms
Do Cashews Increase Milk Supply? The Science and Stories
How Cashews Support Your Baby’s Development
Beyond Cashews: Other Nuts to Consider
How to Add Cashews to Your Breastfeeding Routine
Understanding the Supply and Demand Foundation
Addressing Concerns: Nut Allergies and Weight
Holistic Support: Beyond the Kitchen
When to Reach Out for Support
Frequently Asked Questions (FAQ)
Conclusion

Introduction

Picture this: It is 3:00 AM, and you are sitting in the quiet stillness of your nursery, the only sound being the rhythmic breathing of your little one or the steady hum of your breast pump. In those quiet moments, many of us find ourselves scrolling through our phones, searching for answers to a question that almost every breastfeeding parent asks at some point: “How can I make sure I’m making enough milk?” You might have heard other moms in your support group mention certain snacks, or perhaps you’ve seen "lactation-friendly" recipes popping up on your feed. One food that frequently makes the list is the humble cashew.

But do cashews increase milk supply, or is it just another postpartum myth?

At Milky Mama, we know that the pressure to produce can feel overwhelming. Founded by Krystal Duhaney, an RN, BSN, and IBCLC, our mission is to provide you with the evidence-based education and compassionate support you need to navigate this journey. We understand that while breastfeeding is a natural process, it doesn’t always come naturally, and every drop counts. Whether you are exclusively breastfeeding, pumping, or doing a bit of both, your well-being and your peace of mind matter.

In this comprehensive guide, we are going to dive deep into the nutritional world of cashews. We’ll explore the science behind galactagogues, look at the specific vitamins and minerals that make cashews a powerhouse for nursing parents, and discuss how to holistically support your lactation journey. From the "why" behind the cashew craze to practical ways to incorporate them into your day, we’ve got you covered.

What Exactly Are Galactagogues?

Before we look specifically at cashews, it’s helpful to understand the concept of a galactagogue. The word itself comes from the Greek "galacta," meaning milk. In the world of lactation, a galactagogue is a substance—whether it’s a food, a herb, or a medication—that is believed to help increase milk production.

It is important to set realistic expectations right from the start. While many cultures across the globe have used certain foods for centuries to support breastfeeding, there isn't always a "magic pill" or "magic nut" that works instantly for everyone. The primary driver of milk supply is almost always "supply and demand." The more frequently and effectively milk is removed from the breast (via nursing or pumping), the more milk your body is signaled to produce.

However, nutrition plays a vital supporting role. When your body is well-nourished, hydrated, and supported by the right vitamins and minerals, it can perform its job more efficiently. This is where foods like cashews come into play. They aren't just empty calories; they are nutrient-dense tools that help provide the energy and hormonal support your body needs during the demanding period of lactation.

The Nutritional Power of Cashews for Nursing Moms

When we talk about whether cashews increase milk supply, we are really looking at how their nutritional profile supports the lactating body. Cashews are not just a tasty, convenient, one-handed snack (which every busy mom knows is a necessity); they are a treasure trove of essential nutrients.

Magnesium and Stress Reduction

One of the standout minerals in cashews is magnesium. Magnesium is often referred to as the "relaxation mineral." For a breastfeeding mom, stress can be a significant hurdle. High levels of stress hormones, like cortisol, can sometimes interfere with the "let-down" reflex, making it harder for milk to flow. By consuming magnesium-rich foods like cashews, you may help support your nervous system, promoting a sense of calm that is conducive to nursing and pumping.

Iron for Postpartum Recovery

Many women experience a dip in iron levels following childbirth. Fatigue is a common symptom of low iron, and as any new parent knows, you’re already dealing with a fair share of exhaustion! Iron is essential for maintaining energy levels and supporting the transport of oxygen in your blood. Cashews provide a plant-based source of iron that can help you feel more energized throughout the day.

Healthy Fats for Richer Milk

The fat content in your breast milk can vary slightly based on your diet, and cashews are packed with healthy monounsaturated and polyunsaturated fats. These fats are essential for your baby’s brain development and the absorption of fat-soluble vitamins like A, D, E, and K. Including healthy fats in your diet can also help you feel fuller for longer, preventing the "hangry" feelings that often strike right after a long nursing session.

Do Cashews Increase Milk Supply? The Science and Stories

So, let’s get to the heart of the matter: do cashews increase milk supply specifically? While clinical trials on cashews alone are limited, there is a strong link between the nutrients in cashews and the hormones required for lactation.

The Serotonin Connection

Cashews contain tryptophan, an essential amino acid. Tryptophan is a precursor to serotonin, a neurotransmitter that plays a role in mood regulation and sleep. Interestingly, some research suggests that serotonin levels may influence the production of prolactin, the primary hormone responsible for milk production. By supporting healthy serotonin levels through your diet, you may be giving your body a gentle nudge in the right direction for milk synthesis.

Protein as a Building Block

Producing human milk is an energy-intensive process. Your body requires additional protein to maintain its own tissues while creating the proteins found in breast milk. Cashews are an excellent plant-based protein source. When you are consistently getting enough protein, your body doesn't have to struggle to find the building blocks it needs to produce milk, which can help maintain a steady supply over time.

Antioxidant Support

Cashews are also rich in antioxidants, including vitamin E and selenium. These compounds help protect your cells from oxidative stress. For a nursing mom, staying healthy and supporting your immune system is vital. When your body isn't fighting off unnecessary inflammation or illness, it can focus its resources on nourishing your baby.

How Cashews Support Your Baby’s Development

When you eat cashews, the benefits don't stop with you. Many of the nutrients are passed through your milk to your little one.

Zinc and Immune Support

Cashews are a good source of zinc, a mineral that is crucial for immune function and cell growth. Babies grow at an incredibly rapid rate in the first year of life, and their immune systems are constantly developing. The zinc they receive through your milk helps support these vital processes.

Brain-Building Nutrients

We often hear about the importance of DHA for brain development, but other fats and minerals play a role too. The healthy fats and vitamin K found in cashews contribute to the healthy development of your baby’s nervous system. In fact, some animal studies have suggested that maternal consumption of cashews during pregnancy and lactation can support reflex maturation and memory in offspring. While more human studies are needed, it highlights just how impactful your nutrition can be.

Beyond Cashews: Other Nuts to Consider

While cashews are fantastic, they aren't the only nuts that can support your lactation journey. A varied diet is usually the best approach to ensure you're getting a wide spectrum of nutrients.

Almonds: The Lactation Classic

Almonds are perhaps the most famous "lactation nut." They are high in calcium, which is essential for both your bone health and the calcium content of your milk. Many moms find that drinking almond milk or snacking on raw almonds provides a noticeable boost in how they feel while nursing.

Walnuts: Omega-3 Superstars

Walnuts are shaped like little brains, and fittingly, they are excellent for brain health. They are one of the best plant sources of Omega-3 fatty acids. If you are looking to support your baby's cognitive development and your own postpartum mood, walnuts are a great addition to your pantry.

Peanuts: Folic Acid and Energy

Peanuts (though technically legumes) are often grouped with nuts and offer high levels of folic acid and protein. As long as there is no history of allergy, including a variety of nuts and seeds—like those found in our Fruit Sampler (Fruit-Flavored Cookies)—can be a delicious way to keep your nutrition on track.

How to Add Cashews to Your Breastfeeding Routine

Knowing that cashews are good for you is one thing; finding the time to actually eat them is another! Here are some practical, mom-tested ways to get more cashews into your diet.

The "Nursing Station" Stash: Keep a small jar of raw or roasted cashews at your nursing station. It’s the perfect one-handed snack to grab when you’re trapped under a sleeping baby.
Cashew Butter on Toast: Swap your usual spread for cashew butter. It’s creamy, slightly sweet, and pairs perfectly with whole-grain bread or apple slices.
Creamy Dairy-Free Sauces: If you’re avoiding dairy because of a baby’s sensitivity, soaked cashews can be blended into a remarkably creamy "alfredo" or cheese sauce for pasta.
Boost Your Treats: You can even crumble cashews over your favorite lactation treats. Imagine adding a crunch to our Emergency Brownies or Oatmeal Chocolate Chip Cookies. It adds extra protein and healthy fats to an already supportive snack.

Understanding the Supply and Demand Foundation

While we love the nutritional benefits of cashews, we must always return to the golden rule of lactation: Milk removal is the key.

If you are struggling with supply, it’s important to look at the frequency of your nursing or pumping sessions. Are you "draining" the breast effectively? Are you using a pump that fits correctly? Sometimes, a drop in supply can be traced back to a baby’s poor latch or a pump flange that is the wrong size.

If you’ve optimized your milk removal and you’re eating your cashews but still feel like you need an extra boost, that’s where specialized herbal support can help. Our herbal supplements are designed to complement your hard work. For example:

Pumping Queen™ is a popular choice for those looking to support milk production and flow.
Lady Leche™ uses traditional herbs to help enrich the milk and support supply.
Pump Hero™ is specifically formulated to support the mammary tissue and help moms get those extra ounces during pumping sessions.

Disclaimer: These products are not intended to diagnose, treat, cure, or prevent any disease. Consult with your healthcare provider for medical advice.

Addressing Concerns: Nut Allergies and Weight

A common question we hear is, "Should I avoid nuts to prevent my baby from having an allergy?" Current research from organizations like the American Academy of Pediatrics (AAP) suggests that for most people, avoiding common allergens during pregnancy and breastfeeding does not prevent allergies in children. In fact, exposing your baby to these foods through your breast milk might actually help their immune system recognize them as safe.

Of course, if you have a nut allergy, you must avoid them. If you notice your baby developing a rash, hives, or extreme fussiness after you consume nuts, it’s always best to consult your pediatrician.

Another concern is the calorie density of nuts. Yes, cashews are high in calories, but these are "functional calories." Your body needs an extra 300-500 calories a day to produce milk. Choosing nutrient-dense calories from cashews is often much better for your energy levels than choosing sugary snacks that lead to a crash later.

Holistic Support: Beyond the Kitchen

Breastfeeding is about more than just what you eat. It’s a whole-body, whole-mind experience. To truly support your supply, we encourage you to look at the "Big Three":

Hydration: Your milk is mostly water! If you are dehydrated, your body will prioritize your own survival over milk production. We recommend drinking to thirst. If plain water feels boring, our lactation drinks like Pumpin Punch™ or Milky Melon™ provide a tasty way to stay hydrated while also getting a boost of supportive ingredients.
Rest: We know, we know—telling a new mom to rest feels like a joke. But even 15 minutes of deep breathing or a quick nap can lower your cortisol levels. Remember, your well-being matters too. You cannot pour from an empty cup.
Community: You don’t have to do this alone. Whether it’s joining The Official Milky Mama Lactation Support Group on Facebook or following us on Instagram for daily tips, having a community that understands the struggle makes all the difference.

When to Reach Out for Support

If you have tried increasing your nursing frequency, adjusted your diet to include galactagogues like cashews, stayed hydrated with Lactation LeMOOnade™, and are still concerned about your baby’s weight gain or your milk output, please reach out for professional help.

There is no shame in needing a guide. Our virtual lactation consultations allow you to speak with an expert from the comfort of your own home. We also offer online breastfeeding classes, including our Breastfeeding 101 course, which can help you troubleshoot common issues and feel more confident in your journey.

Remember, breastfeeding is natural, but it’s also a learned skill for both you and your baby. You’re doing an amazing job navigating this, and we are here to walk beside you every step of the way.

Frequently Asked Questions (FAQ)

1. How many cashews should I eat per day to see a difference in my milk supply?

While there is no magic number, most nutritionists recommend a "handful" (about 1 ounce or 15–18 nuts) as a standard serving size. Consuming this daily as part of a balanced diet is a great way to reap the nutritional benefits without overdoing the calorie intake. Consistency is more important than quantity when it comes to supporting your body’s nutritional needs.

2. Are roasted cashews as effective as raw cashews for lactation?

Both raw and roasted cashews contain the essential minerals like magnesium and zinc that support your body. However, raw cashews may retain slightly higher levels of certain heat-sensitive vitamins. If you prefer roasted cashews, try to choose "dry roasted" options to avoid unnecessary added oils and excess salt, which can lead to dehydration.

3. Can cashews make my breast milk fattier?

The total fat content of breast milk is relatively stable, but the type of fat in your milk can be influenced by your diet. Eating cashews, which are rich in healthy monounsaturated fats, can help ensure your milk contains these high-quality fats that are beneficial for your baby’s brain and nervous system development.

4. What if I don't like cashews? Are there other ways to get the same benefits?

Absolutely! If cashews aren't your favorite, you can get similar benefits from almonds, walnuts, or pumpkin seeds. You can also look into our Lactation Treats collection, which incorporates a variety of supportive ingredients like oats and flaxseed to help you reach your goals in a delicious way.

Conclusion

So, do cashews increase milk supply? While they aren't a standalone miracle cure for low supply, they are an incredibly valuable tool in your breastfeeding toolkit. Their unique combination of protein, healthy fats, magnesium, and tryptophan provides the foundational support your body needs to thrive during lactation. By nourishing yourself with whole, nutrient-dense foods, you are not only supporting your milk production but also investing in your own recovery and your baby’s growth.

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