Breastfeeding Nutrition

If you’re breastfeeding your new baby in the post-partum period, it’s common and understandable to wonder what you’re supposed to eat in between diaper changes, feedings, and nap times (whether it’s yours or baby’s nap). And while these months call for nourishment that supports recovery and feeding a baby, we don’t need (or want) to turn food into another source of stress. While we know that mom’s eating pattern can influence breastmilk composition, it’s worth noting that breastfeeding mothers already provide their baby with an enormously nutritious food source, even if eating doesn’t feel especially intentional right now.

As a mom to a brand-new baby, it can feel overwhelming to prioritize nutrition at a time when it may feel like you don’t have any more to give. It’s totally normal for intake to vary from day to day. Though cultural emphasis tends to pressure post-partum moms to “bounce back” after giving birth, the focus for mothers, particularly those who are breastfeeding, is to nourish the body, not shrink it.

By including nutrient-dense foods when possible, you can help support a baby’s growth and development while helping your body heal and replenish stores after birth. The good news is that the same nutrients that help you recover can also enrich the already nutritious breastmilk your body makes for your baby. 

A quick check-in for post-partum moms: If you’re in a season where feeding yourself and your baby already feels overwhelming, reading this post can wait for another time. These ideas are meant to support you, not add more pressure to an already demanding phase of life.

And if you’re not breastfeeding but you are supporting a breastfeeding parent, many of the ideas below can also give you some ideas to help them during this period of recovery and rest. 

General Nutrition

Energy: Post-partum moms have higher energy needs in order to meet the demands for healing from delivery and support your baby’s rapid growth. Energy needs vary based on breastfeeding frequency, baby’s age, number of babies, and other factors.¹ If you’re unsure about whether you are meeting your needs, or if you’re noticing changes in appetite, your Registered Dietitian (RD) can help provide personalized recommendations.

Protein: When you’re a breastfeeding mother in the post-partum period, you also need extra protein for healing as well as milk production.¹ If you can, try to include a source of protein in most of your meals and snacks, and try to get it from a variety of sources, especially if you follow a vegetarian or vegan diet.² Because everyone’s needs might look a little different, this is another area in which a RD may give additional support when it comes to specific concerns about intake or supplementation. 

Fluids: Breastfeeding moms generally need around 16 cups (or ~4 liters) of fluids a day,³ though this may vary from person-to-person.  This includes everything from water and other beverages  to food with high water content like fruits, veggies, yogurt, etc. to keep both you and your little one well-hydrated. And if you’re looking for a little boost after a long night, I have good news: not only do caffeinated drinks count toward total fluid intake per day, but moderate caffeine intake (less than 200 mg/day) is considered safe while breastfeeding, though you may want to check for signs of irritability in case your kiddo is especially sensitive.⁴ Paying attention to signs like thirst, dry mouth, or darker urine might be a useful way to notice when you might need more fluids.

Lactation supplements: While “lactation cookies” and other so-called galactagogues are often marketed as an easy way to improve milk supply, there is limited research to support their effectiveness for most breastfeeding mothers.² These products are not necessary for making breast milk and do not replace the basics of eating enough and drinking enough, as well as additional non-nutrition factors like rest and how often you’re feeding/pumping.⁵ It’s common to worry about what you consume and how it affects your overall breastmilk supply in the newborn stage, but in most cases, eating and drinking adequately plays a much bigger role in supply than any specific food or supplement. That said, if a lactation cookie helps you eat enough, fits your budget, and you genuinely enjoy it, feel free to include it as part of your snack routine.

An Add-In Approach to Breastfeeding Nutrition

Knowing the basics about energy, protein, and fluids can help us find foods that support both you and baby. Some vitamins and minerals in breastmilk are influenced by what the breastfeeding parent eats, meaning certain foods can slightly shift breastmilk composition and offer baby a nutrient boost.⁶ However, this is not about eating perfectly or including everything listed here, rather, sharing options that might feel realistic and enjoyable while being supportive of your recovery and baby’s development. For many, an “add-in” approach is best, rather than an unattainable standard of perfection.  

Fruits and vegetables: Produce is an easy way to add color, flavor, and variety while supporting recovery and contributing nutrients to breastmilk, including vitamins A, C, K, and B6.^5,6,7 Try what you enjoy: maybe fruit with breakfast, leafy greens in salads or soups, or roasted vegetables with lunch or dinner. Even small additions count.

Legumes: Beans, lentils, and chickpeas provide protein, fiber, and B vitamins like folate, thiamin, and B6, which can contribute to both maternal recovery and the nutrient content of breastmilk.^6,7 Since certain B vitamin content in breastmilk is dependent on maternal intake, legumes could be a way to include these nutrients in your day-to-day to support the amount baby also gets, if you enjoy them. 

Seafood: Fatty fish add protein, beneficial fats, and nutrients like iodine and choline to breastmilk if included in mom’s diet.^5,6,7 These fatty fish contain fats called DHA, and some (though not all) studies suggest that they could give baby’s vision and brain development a boost.^1,6 If you like fish, smaller seafood like shrimp or canned light tuna are quick and easy options. Large, long-lived predatory fish like shark or king mackerel are best limited because of their higher mercury content – smaller fish and shellfish are safer options, especially if you’re eating them a few times per week.^1,5 Seaweed is another way to include iodine (and is actually one of the best food sources of iodine – nori chips, anyone?), which can boost breastmilk content of iodine, thereby supporting baby’s thyroid and immune systems.^2,6

Whole grains, nuts, and seeds: Foods like oats, rice, bread, and pasta also contain B vitamins.⁴ These B vitamins help mom’s metabolism and also helps baby get an adequate supply for their rapid growth as well. Nuts and seeds, on the other hand, pack a great nutritional punch, since they contain not only protein, but also fats and vitamin E. These can be an especially easy and portable way to add nourishment to meals or snacks and contribute to the amount of those nutrients in breastmilk as well. 

Other animal products: Animal foods can be a convenient way to get important nutrients during the post-partum period.^2,6 Meats provide vitamin A (mainly organ meats, if that’s your thing) and vitamin B12, which support overall nutrient needs for mom and can up the content of these vitamins in breastmilk as well. And eggs, though they also contain protein, are one of the major food sources of choline, and may support baby’s brain development and memory, though they still probably won’t remember much about that recent massive diaper blowout. Dairy products, like milk, yogurt, and cheese, offer iodine and vitamin A, along with additional protein, vitamins, and minerals.

If any of these foods aren’t quite to your taste, that’s OK! A RD can help you find alternatives or talk through whether supplementation might be helpful for you. If you or someone you know could benefit from RD support, please visit our website.

Practical tips

In the post-partum period, supporting your nutrition often looks less like “perfect meals” and more like removing barriers to eating and drinking enough. With a newborn setting the pace of your day, making food and fluids easy to access can go a long way in helping you care for yourself. Some strategies to more easily support your needs include: 

• Purchase foods that will cut prep work – think pre-cut or frozen fruits and veggies, salad kits, canned proteins (such as beans or seafood), and microwavable whole grain packets like oatmeal, rice, or quinoa.
• Use a “snackle box” or snack cart to bring from room to room – Stock it with non-perishables like granola or breakfast bars, tuna packets, nuts, dried edamame or chickpeas, and easy-to-eat fruits such as apples, clementines, bananas, or pears, just to name a few.
• Keep your fridge stocked with easy-to-grab food options – perishables like high-protein yogurt, cheese sticks, hard-boiled eggs, hummus, baby carrots, and pre-cut fruit or berries are still great to keep available if you’re able to make your way to the fridge to get them. 
• Cook once, eat twice – make extra portions when you can, and save leftovers for quick meals later on.
• Consider liquids to add nourishment and help meet fluid goals:³
  • Smoothies (if the blender won’t wake your sleeping kiddo)
  • Kefir or drinkable yogurt
  • Milk or plant-based milk (pea or soy milk contain more protein compared to other plant-based milk choices)
  • Moderate amounts of 100% fruit or vegetable juice
  • Broth or soup
  • Infused water (fruit, cucumber, or herbs for flavor)

*Having a water bottle nearby gives you something to sip on for most of your day (and let’s face it, probably your night too!)

• Lean on your support system for help – some people may want to do what they can to help you in your post-partum period. If nutrition is an area in which you would like some support, here are some suggestions to share with them:
  • Restock the fridge and pantry with ready-to-eat or easy-to-prepare foods.
  • Prepare or heat meals, snacks, or ingredients for quick access.
  • Keep nourishing drinks nearby and top off your water bottle if needed
  • Help with grocery shopping, meal delivery, or start a meal train to keep you covered
  • Offer gentle reminders or encouragement to eat and stay hydrated (if you find this helpful)

Feeding yourself during the newborn stage can feel messy, inconsistent, and imperfect – and that’s totally normal. Small things that you do to nourish yourself, however it works for you, can still support you and your baby. To optimize nutrition in the post-partum phase is to lead with flexibility, self-compassion, and the reminder that you don’t have to do it “right” to be doing it well.

Sources:

1. Butte, N. F., & Steube, A. (2024, January 30). Patient education: Health and nutrition during breastfeeding (Beyond the Basics). UpToDate.com. Retrieved August 12, 2025, from https://www.uptodate.com/contents/health-and-nutrition-during-breastfeeding-beyond-the-basics/print
2. Nichols, L. (2018). Real Food for Pregnancy: The Science and Wisdom of Optimal Prenatal Nutrition. Lily Nichols.
3. Gordon, RDN, LD, B. (2022, April 13). Nursing Your Baby — What You Eat and Drink Matters. Academy of Nutrition and Dietetics. Retrieved December 31, 2025, from https://www.eatright.org/health/pregnancy/breastfeeding-and-formula/nursing-your-baby-what-you-eat-and-drink-matters
4. National Institute of Child Health and Human Development. (2025, September 15). Caffeine – Drugs and Lactation Database (LactMed®). National Library of Medicine. Retrieved January 13, 2026, from https://www.ncbi.nlm.nih.gov/books/NBK501467/
5. Escott-Stump, S. (2015). Nutrition and Diagnosis-related Care. Wolters Kluwer.
6. Nichols, L. (2025). Nutrition for Breastfeeding [Webinar]. Women’s Health Nutrition Academy. Retrieved January 13, 2026, from https://whnacademy.com/ 
7. Mahan, L. K., & Raymond, J. L. (Eds.). (2017). Krause’s Food & the Nutrition Care Process (14th ed.). Elsevier.