Healthy Hydration: Discover the 4 Best Electrolytes for Pregnancy

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Healthy Hydration: Discover the 3 Best Electrolytes for Pregnancy

Pregnancy brain fog, constant fatigue, or nagging muscle cramps? The answer might be simpler than you think: balanced electrolytes.

Maria is a passionate healthcare professional.
By Maria J Baez Calderon
a man in a white shirt is posing for a picture
Edited by Jovan Mijailović

Published January 31, 2025.

A pregnant woman drinking water from a bottle.

Feeling sluggish, dizzy, or just plain off during pregnancy? Pregnancy is a marathon, not a sprint, and staying properly hydrated is absolutely crucial, not just for you but also for your growing baby.

But plain water isn't always enough. Often, what your body really craves are electrolytes—those tiny but mighty minerals that power everything from muscle function to healthy development.

Dehydration, especially when coupled with morning sickness or just the sheer demands of pregnancy, can leave you depleted and vulnerable. So, how do you ensure you're getting the right balance?

We've prepared a list of the best electrolytes for pregnancy and will show you how to include them to thrive—not only survive—these nine incredible months. Let's get started!

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Why Electrolytes Matter During Pregnancy

Staying hydrated is so important for you and your growing baby. Electrolytes, like sodium (salt) and potassium, play a key role in keeping your body's fluids balanced. This proper hydration is essential for your baby's healthy development. It can also help you avoid some of the common discomforts of pregnancy, like swelling and dehydration.

Electrolytes are also vital for maintaining healthy blood pressure. Good blood flow is essential for delivering the nutrients your baby needs through the placenta. This supports healthy growth and development.

And let's not forget those pesky leg cramps! Electrolytes like calcium and magnesium support healthy muscle function, which can help reduce those cramps and muscle spasms that often come with pregnancy. Because, let's face it, you're carrying extra weight, and your body is working hard!

» Find out the difference between electrolytes and minerals

Electrolyte Imbalance in Pregnancy: Risks and Remedies

Staying well-hydrated is crucial during pregnancy, both for you and your baby. Dehydration can lead to headaches, dizziness, and even lower levels of amniotic fluid, which cushions and protects your baby. So, drink up!

Reach for plenty of fluids throughout the day, especially electrolyte-rich drinks like coconut water. Keeping your electrolytes balanced is key, as inadequate intake can sometimes lead to complications like preeclampsia or preterm labor. Delicious, hydrating foods like cucumbers and watermelon can also help you stay refreshed and nourished.

We also want to talk about blood pressure. Sometimes, during pregnancy, blood pressure can rise due to imbalances in sodium and potassium. This can increase the risk of preeclampsia, a serious condition that needs careful monitoring. Chat with your doctor about managing your sodium intake and including potassium-rich foods like bananas and leafy greens in your diet.

And finally, let's address those pesky muscle cramps! They're a common complaint affecting many expectant moms, often due to lower levels of magnesium and calcium. These cramps can be uncomfortable and disruptive, especially at night.

Nourishing your body with magnesium-rich foods like nuts, seeds, and whole grains can be helpful. And don't forget calcium-rich sources like dairy (if you tolerate it) and leafy greens to help ease those cramps and support healthy muscles. Remember, you're doing amazing, mama!

» Understand the benefits of electrolyte water for your health

Evolving Electrolyte Needs During Pregnancy

Your body's needs for electrolytes change as your pregnancy progresses. During the first trimester, when you're laying the foundation for a healthy pregnancy, your electrolyte intake will increase moderately.

But as you enter the third trimester and your little one is growing rapidly, the demand for essential minerals like sodium, potassium, calcium, and magnesium really ramps up.

These electrolytes play a vital role in supporting your baby's development and preparing your body for the amazing journey of labor.

For example, the National Institutes of Health (NIH) recommends boosting your calcium intake from 1,000 mg to 1,300 mg daily during the third trimester to help build strong bones for your baby.

Your magnesium needs also increase, going from 310-320 mg to 350-360 mg each day. Nourishing yourself with these important nutrients is one of the best ways you can support a healthy pregnancy.

» Discover everything about the minerals found in tap water

4 Best Electrolytes for Pregnancy

1. Magnesium

Magnesium is a real MVP during pregnancy! It's essential for relaxing your muscles, which can really help ease those pesky leg cramps. It also supports healthy nerve function, which is important for both you and your baby.

This mineral plays a key role in your baby's bone and teeth development, too. And, it helps regulate your blood sugar levels, reducing the risk of gestational diabetes. So, how much magnesium should you aim for? The recommended daily intake for pregnant women is 350-360 mg.

Not getting enough magnesium can sometimes lead to muscle cramps, high blood pressure, and even preeclampsia. But, while magnesium is wonderful, it's also possible to get too much, especially from supplements. Over 350 mg can sometimes cause diarrhea, nausea, and stomach cramps. As always, it's a good idea to chat with your doctor about the right amount for you.

Looking for delicious ways to boost your magnesium intake? Nuts and seeds are fantastic sources! Just one ounce of pumpkin seeds provides a whopping 150 mg—that's 42% of your daily needs! Whole grains like brown rice and quinoa are also great choices.

A cup of cooked brown rice offers 84 mg of magnesium. Leafy greens, like spinach, are another excellent option. One cup of cooked spinach packs a powerful 157 mg punch (44%!). And don't forget about legumes like black beans—one cooked cup gives you about 120 mg (34%).

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2. Calcium

Calcium is a real superstar when it comes to building strong bones – both for you and your growing baby! It plays a crucial role in preventing osteoporosis and keeping your muscles healthy.

Plus, it ensures your little one's skeletal structure develops perfectly and helps you maintain your bone density during pregnancy.

So, how much calcium do you need? The recommended daily intake for pregnant women is 1,000 mg. Getting enough calcium is important because too little can, unfortunately, increase the risk of preeclampsia and high blood pressure and lower your baby's bone density.

On the flip side, it's also good to know that too much calcium (over 2,500 mg) can sometimes cause kidney stones and interfere with how your body absorbs other important minerals. It's all about finding that sweet spot!

Looking for delicious ways to boost your calcium intake? Milk and yogurt are excellent sources—one cup of milk gives you around 300 mg, which is a fantastic start! Leafy greens like kale and broccoli are also great additions to your plate, with about 100 mg of calcium in a cup of cooked kale.

And don't forget about almonds! A handful (one ounce) provides about 75 mg. Incorporating these calcium-rich foods into your daily diet is a wonderful way to nourish yourself and your baby.

Your Daily Dose of Calcium During Pregnancy

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3. Potassium

Nourishing your body with the right nutrients is so important during pregnancy, and potassium plays a key role in keeping you and your baby healthy.

This essential mineral helps maintain a healthy fluid balance, supports your nerves and muscles (goodbye, leg cramps!), and keeps your blood pressure in check, reducing the risks of hypertension and preeclampsia. Plus, potassium is vital for your baby's healthy development.

Aim for 2,900 mg of potassium each day. Not getting enough can lead to muscle cramps, weakness, and even high blood pressure. While it's rare to get too much potassium from food alone, taking too many supplements can sometimes cause heart arrhythmias.

It's always best to talk to your doctor about any supplements you're considering.

Here are some delicious and natural ways to boost your potassium intake:

  • A medium banana: 422 mg (that's 15% of your daily needs!)
  • A medium sweet potato: 438 mg (another 15%!)
  • A cup of orange juice: 496 mg (a refreshing 17%)
  • A cup of cooked Swiss chard: a whopping 961 mg (a fantastic 33%!)

Feeling Off During Pregnancy? Potassium Could Be a Factor

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4. Sodium

During pregnancy, it's important to pay attention to your sodium intake. Sodium plays a vital role in maintaining a healthy fluid balance in your body, supporting nerve function and muscle contractions.

Keeping your sodium levels in a healthy range is also key for maintaining good blood pressure, which is essential for ensuring healthy blood flow to your placenta and, of course, your growing baby.

The recommended daily sodium intake for pregnant women is 1,500 mg. It's generally a good idea not to exceed 2,300 mg per day. Too little sodium can sometimes lead to dizziness, nausea, and muscle cramps.

On the other hand, too much sodium can contribute to high blood pressure and swelling, which aren't comfortable for you or ideal for your baby.

It's helpful to be aware of where sodium can hide in your diet. Here are some common sources:

  • Just one teaspoon of table salt contains a whopping 2,300 mg of sodium (that's 100% of your recommended daily amount!).
  • Soups and broths can be surprisingly high in sodium, ranging from 700 to 1,200 mg per cup (30-52%).
  • Even a single slice of bread can contain around 150 mg of sodium (6.5%).
  • One ounce of cheddar cheese has about 174 mg of sodium (7%).

Being mindful of these sources can help you make informed choices and maintain a healthy sodium intake during your pregnancy. Remember, it's always a good idea to discuss your dietary needs with your doctor or a registered dietitian for personalized advice.

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Creative Ways to Include Electrolytes in Your Diet

Keeping yourself hydrated and nourished is so important during pregnancy, and electrolytes play a key role in that. Luckily, it's easy and delicious to incorporate electrolyte-rich foods into your daily routine.

Here are a few fun and simple ideas:

Energizing Smoothie Bowls

Imagine starting your day with a vibrant and refreshing smoothie bowl. Simply blend potassium-rich bananas and oranges with hydrating coconut water, a handful of leafy greens for extra vitamins, and a dollop of yogurt for creaminess.

Then, sprinkle on some chia seeds for fiber, a few nuts for healthy fats, and a tiny pinch of sea salt to boost those electrolytes. The best part? You can customize these bowls with your favorite fruits and toppings!

» Find out if you're getting the right balance of vitamins and minerals

Cooling Hydrating Popsicles

When the weather gets warm (or you just need a little treat!), these homemade popsicles are a lifesaver. Blend coconut water with sweet, hydrating watermelon and a touch of sea salt.

For extra flavor and nutrients, add slices of strawberries or kiwi before freezing. They're the perfect way to cool down and replenish your electrolytes.

Nourishing Roasted Vegetable Salads

These hearty salads are packed with flavor and goodness. Toss chunks of sweet potato (a great source of potassium), earthy beets, and vibrant bell peppers with olive oil and a sprinkle of sea salt.

Roast them until they're tender and caramelized, then combine them with fluffy quinoa and a zesty lemon-tahini dressing. This combination is a fantastic way to get your potassium and magnesium, keeping you feeling your best.

» Discover different ways to get enough minerals

Extra Tip! How to Deal With Morning Sickness

Coconut water can soothe morning sickness and dehydration in pregnant women. It's gentle on the stomach and rich in potassium. Eating small, frequent meals with electrolyte-rich foods, like bananas, avocados, and sweet potatoes, can also help.

Ginger tea or ginger-infused water can ease nausea. Broth-based soups are helpful, too. They provide hydration and essential electrolytes like sodium and potassium, making them a comforting choice for upset stomachs.

Your Electrolyte Action Plan

Remember, sodium, potassium, and magnesium are your allies in maintaining healthy hydration, supporting your body's incredible work, and ensuring your little one gets the best possible start.

While it's always wise to discuss your specific needs with your healthcare provider, incorporating these electrolyte-rich foods and drinks into your daily routine can be a game-changer.

Prioritizing these key nutrients isn't just about managing pregnancy discomforts; it's about investing in your well-being and the healthy development of your baby.

Here's to a happy, healthy, and hydrated pregnancy!

» Get essential minerals to help you throughout your pregnancy


Maria is a passionate healthcare professional.

Meet the Expert

Maria J Baez Calderon, a naturopathy practitioner, specializes in recommending dietary changes, herbal supplements, and therapeutic techniques to promote digestive health and alleviate constipation, empowering individuals to achieve long-term wellness through gentle, effective natural methods.



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