Choosing the Right Prenatal Vitamin: The Truth Behind the Labels

Good nutrition is key for a healthy pregnancy, but choosing the right prenatal vitamin can feel overwhelming. With so many options, it’s essential to understand what your body needs to support you and your baby. Let’s break down the important nutrients and find the perfect prenatal vitamin for your journey!

This post may contain affiliate links to products. I receive a commission for purchases made through these links, at no extra cost to you. Read my full disclaimer here.

Good nutrition is essential for a healthy pregnancy and a healthy baby. A balanced, whole-food diet packed with high-quality protein, carbs, fats, vitamins, and minerals is one of the best ways to support both you and your baby throughout pregnancy and birth.

But what role do prenatal supplements play in all of this?

Even with an excellent diet, pregnancy increases your need for certain nutrients. Some, like folate and vitamin B12 (especially for vegetarians), are critical during this time. So, yes—many women, even those who already prioritize nutrition, may need to supplement to ensure they’re covering all their bases.

With so many options, choosing the right prenatal vitamin—even knowing how to pick a good one—can feel overwhelming. So that’s what I’m here to help you learn today.

Let’s dive in.

What Should a Good Prenatal Include?

Most high-quality prenatal vitamins include the following vitamins and minerals:

• Vitamin A
• Vitamin C
• Vitamin D3
• Vitamin E
• Vitamin K2
• Thiamin
• Riboflavin
• Niacin
• Vitamin B6
• Folate
• Vitamin B12
• Biotin
• Pantothenic Acid
• Choline
• Iodine
• Zinc
• Selenium
• Copper
• Manganese
• Chromium
• Molybdenum

Some of these are particularly crucial for pregnancy, while others are for general health. Let’s break down a few that deserve extra attention when you’re learning how to pick a good prenatal vitamin and choosing the right one for you.

Folate

You’ve likely heard about folate and folic acid—this B vitamin is vital for your baby’s brain and neural tube development early in pregnancy.

But here’s something that many don’t understand: folic acid is the synthetic form of folate. And roughly half of all people have a genetic variation (in the MTHFR gene) that makes it hard for their bodies to process folic acid properly.

If you’re in that group, not only are you not getting the folate you need, but excess folic acid could build up in your system, leading to toxic effects.

To be on the safe side, choose a prenatal vitamin with methylated folate, which is already in the form your body can use. Look for “5-methyltetrahydrofolate” or “5-MTHF” on the label. This is a key ingredient (pun intended) when picking a good prenatal vitamin that meets your needs.

Choline

Choline is like folate’s lesser-known twin—just as important for brain development but often overlooked. Many prenatals leave it out or only include it in small amounts because it takes up a lot of space in a pill. But it is critical for a healthy pregnancy.

The current recommended intake is 450 mg per day. But research has provided evidence that aiming for 930 mg per day may boost your baby’s cognitive development even further.

Eggs are one of the best dietary sources of choline (followed by liver and then many other animal products). If you’re eating eggs every day, you’re probably getting a good amount. But if not, consider looking for a prenatal with choline or even a separate choline supplement.

Vitamin D3

Vitamin D is the sunshine vitamin. But most of us don’t get as much as we need. That is why dietary intake of vitamin D—and sometimes supplementation—is important.

A 2012 study showed that pregnant women benefit most from 4,000 IU (international units) of vitamin D daily—much higher than the common recommendation of 600 IU.

When choosing the right prenatal vitamin, opt for one with vitamin D3 (cholecalciferol) rather than D2. D3 is more effective at raising and maintaining healthy vitamin D levels, and it is chemically identical to the form your body produces naturally from sun exposure.

For best results, get a supplement that combines vitamin D3 with vitamin K2. These vitamins together help your body absorb and use calcium effectively, supporting bone health for both you and your baby while reducing the risk of calcium buildup in your arteries and placenta.

Vitamin B12

Vitamin B12 is vital for cell growth, gene function, and organ development. If you eat red meat, you’re likely getting enough, but vegetarians (especially those who don’t eat eggs or dairy) may need extra.

Even meat-eaters can sometimes fall short during pregnancy, so it’s wise to look for a prenatal with a higher-than-standard amount of B12 or a standalone supplement.

(Studies have found evidence that the recommended amount of B12 during pregnancy is still too low and may even need to be triple what it currently is to avoid deficiency in most women.)

When choosing a B12 supplement, look for the bioavailable forms—methylcobalamin or adenosylcobalamin—for best absorption.

What About Iron?

When choosing the right prenatal vitamin for you, iron may or may not be on the “yes” list.

Having sufficient iron levels throughout pregnancy helps your body to keep up with the increased demand for red blood cells and blood volume, helps your baby grow and develop properly, and also helps you avoid preterm birth.

Iron needs do go up during pregnancy (increasing to 27 mg per day) but not every woman requires supplementation.

If you eat a diet rich in iron, especially from red meats or organ meats, you might be meeting your needs. Pairing iron-rich foods with those high in vitamin C can also help increase absorption.

If you do need to supplement, opt for iron bisglycinate or “chelated” iron, which is easier on the stomach and less likely to cause constipation or heartburn.

What About Calcium?

Unlike iron, your calcium needs don’t increase during pregnancy. But it is still important. Most women get plenty of calcium from a well-rounded diet. And pregnancy actually doubles your body’s ability to absorb calcium!

If you or your care provider feel you need more, focus on supporting calcium absorption by ensuring you’re also getting magnesium, vitamin D3, and vitamin K2.

If your diet doesn’t provide enough calcium, it is smart to consider supplementing. In fact, research suggests that sufficient calcium intake can help reduce the risk of preeclampsia.

Just keep in mind, if you opt for a calcium supplement, it’s best to take it separately from any iron supplements. Since calcium and iron compete for absorption, taking them together can reduce how much your body actually absorbs.

To make sure you’re getting the most from your calcium, look for calcium malate, which is better absorbed than the more common calcium carbonate.

Ingredients to Avoid 

When choosing your prenatal vitamin, steer clear of unnecessary fillers and additives like:

• BHT (butylated hydroxytoluene): a preservative linked to hormone disruption, allergic reactions, and possible links to cancer in high amounts
• Hydrogenated Oils: unhealthy trans fats that can be harmful to overall health
  • e.g. canola oil, cottonseed oil
• Artificial Dyes: linked to allergic reactions and hyperactivity
  • e.g. FD&C Red No. 40, Yellow No. 5
• Artificial Sweeteners: often found in gummies, can cause gastrointestinal distress
  • e.g. Aspartame, Sucralose, Saccharin
• Talc: a filler, can be contaminated and pose cancer risks
• Soy or Gluten: common allergens, can be used as fillers or binders

Nutrients You Need That Aren’t in a Prenatal

No prenatal vitamin can cover everything, and some nutrients—like omega-3s and probiotics—are best taken separately. Here are a few additional supplements you might consider:

Fish Oil

Fish oil is rich in DHA and EPA, two essential omega-3 fatty acids that our bodies can’t produce on their own. These nutrients are crucial for brain and eye health—not just for you, but for your growing baby as well. Ensuring you get enough of these omega-3s supports healthy development throughout pregnancy.

Magnesium

Magnesium plays a wide variety of roles in pregnancy, from helping to regulate mood swings to easing constipation and reducing leg cramps. Some studies have suggested that may also help prevent complications like preeclampsia and gestational diabetes.

Many women find that magnesium supplementation can even ease morning sickness, making it an excellent addition to a prenatal supplement routine.

We Heart Nutrition’s magnesium glycinate is the purest on the market and is gentle on the stomach. You can also try magnesium cream if you don’t want to take it in pill form.

Probiotics

Your gut health can significantly impact your overall well-being, especially during pregnancy. Probiotics support the balance of good and bad bacteria in your body, which in turn can improve digestion and boost immunity.

By keeping this balance in check, probiotics may help reduce the risk of pregnancy-related issues like constipation and gestational diabetes.

Collagen

Collagen is essential for maintaining healthy connective tissues, including your skin, bones, tendons, and ligaments. During pregnancy, collagen also provides a key source of glycine, an amino acid that becomes “conditionally essential” as your body grows and changes. 

Supplementing with collagen can help ensure that your body has the support it needs as you move through each stage of pregnancy.

My Favorite Prenatal Vitamin

During my first pregnancy, I went with a basic, store-brand prenatal because I didn’t know what to look for. While it worked well enough, I’ve since learned that a higher-quality supplement can make a difference.

MegaFood’s Baby & Me 2 Prenatal Multi is my go-to now. It’s made with real food and added vitamins and minerals, including methylated folate, 300 mg of choline, vitamin D3 with K2, and B12—all at an affordable price compared to most high-quality brands.

Actually it’s half the price of most quality prenatals out there.

It can be taken any time of day, with or without food, and is tested for 150 pesticides, making it a solid choice for both you and your baby. Plus, they never include 9 major allergens!

If you want a great prenatal vitamin but don’t want to break the bank, try MegaFood’s Prenatal Multi.

How to Supplement on a Budget

Want to learn how to pick a good prenatal vitamin without blowing your budget? Good news—it’s absolutely possible! I’ve put together my top 5 tips to help you do just that. Drop your info below, and I’ll send my free guide, 5 Essential Tips for Supplementing on a Budget, straight to your inbox.

Conclusion: Filling the Gaps

A healthy diet should always be the foundation of your pregnancy nutrition, but supplements can be a valuable tool to fill any gaps. Armed with what you’ve learned about how to pick a good prenatal vitamin, you’re ready to confidently start choosing the right one that suits your unique needs.

Until next time,

Allison

Want to do this the easy way?

If you’re tired of sorting through all the conflicting advice on pregnancy nutrition, supplementing, and movement, my new mini course, Strong, Nourished, Empowered: A Mom’s Guide to Pregnancy Nutrition & Movement, is for you!

Not only will you learn why supplements are needed even with good nutrition and how to get them on a budget, you’ll also discover…

• How nutrition and movement benefit you and your baby (and how they help you avoid complications)
• The nutrients that make the biggest difference in your health and your baby’s health (and what most people are getting WRONG)
• Simple ways to start getting what you need from your diet
• The importance of understanding your body’s unique nutritional needs and how to listen to your intuition
• The 5 elements of healthy movement during pregnancy (that NO ONE tells you)
• How to get your mind on board even on the hard days

Plus, you get lots of awesome bonuses (you can check those out here).

If you’re ready to take the guesswork out of having a healthy pregnancy and preparing your body for labor, get Strong, Nourished, Empowered today.

READ MORE:

The Brewer Diet: What, Why, and How (+ free checklist)

Prenatal Vitamins: Morning vs Night—Which Is Best?

The Baby Registry List I Wish I’d Had

Not Pregnant? Here’s What Happens if You Take Prenatal Vitamins