Can You Take Creatine While Pregnant or Breastfeeding?†

Women produce 70–80% of the Creatine that men do— and tend not to get enough from diet alone. Fluctuating hormones shift how your body uses it across your cycle and lifespan, and our diets provide less to begin with. While we commonly associate creatine with supplements, you may be surprised to learn that creatine naturally occurs in your body and in foods like meat and fish.

Creatine is a key nutrient for energy production across the life course, from early development through adulthood. Our bodies produce creatine, but we also get it from our diets (and dietary supplements), which helps to support our body's creatine stores.

That matters because Creatine strengthens your body, sharpens your mind, and steadies your energy.* It's one of the most studied supplements out there, yet most women still aren't aware they need it.

When you're pregnant, your body's demand for creatine skyrockets. Your uterus, placenta, and growing baby all rely on it for energy and growth*. 

When you're breastfeeding, your body is already doing something remarkable: creatine is a natural, functional part of your breast milk, supplying a meaningful share of your baby's daily creatine needs from day one*.

Needed is committed to science and innovation, which is why we are updating our guidance as data emerges and evolves.

What Is Creatine and How Does It Work?

Creatine is a natural compound made from amino acids that helps the body produce energy quickly. Creatine helps your cells recycle adenosine triphosphate (ATP), the fuel that powers your muscles and brain. When ATP is depleted during movement or stress, creatine helps regenerate it quickly.

Your body makes creatine on its own, and it’s present in red meat and fish. It’s also a popular wellness and fitness supplement because increasing your creatine stores can boost energy output, support recovery, and sharpen focus. 

These creatine benefits for energy are well-researched among athletes and active adults.

Creatine is one of the most well-studied supplements on the market today, and people choose it for several reasons:

• Athletic performance and recovery: Supports high-intensity workouts and faster recovery*.
• Muscle strength and endurance: Helps sustain muscular energy during repetitive activity*.
• Mental focus and fatigue reduction: May improve alertness and cognitive resilience under stress*.

These are just a few of the studied benefits of creatine, which is why it remains a popular supplement.

How the Body Uses Creatine During Pregnancy†

Creatine and pregnancy are increasingly studied together because your body’s energy demands rise dramatically during these nine months. From supporting your baby’s growth to fueling your own tissues, the need for efficient energy production increases, and creatine helps power that process.*

Early research shows that creatine levels fluctuate during pregnancy to support fetal development and placental function.* In other words, your body instinctively adjusts its creatine metabolism to meet the growing energy needs of both you and your baby.

Why creatine matters for energy and cell function

Creatine’s primary role is to sustain cellular energy.* During pregnancy, when cells divide rapidly and your body is constantly building new tissue, that energy demand is even higher. This link between creatine's role in energy metabolism and its effects on cell function is why researchers are exploring its potential for maternal and fetal health.

What studies show about creatine levels changing across pregnancy†

Research suggests that creatine levels change during pregnancy, often rising later in gestation. Preclinical studies suggest creatine may help support the developing brain in utero*, and early human research points to a meaningful role for creatine in healthy pregnancies. 

Is Creatine Safe to Take During Pregnancy and While Breastfeeding†?

Your body's demand for creatine rises sharply during pregnancy. Your uterus, placenta, and growing baby all rely on it for energy and growth* — but most pregnant women aren't getting nearly enough through food alone. 

That demand doesn't stop at delivery: breastfeeding also draws on the body's creatine stores to support milk production and your baby's continued growth.* Creatine is already a natural, functional part of breastmilk, supplying a meaningful share of your baby's daily creatine needs from day one*. Mechanistic insights suggest creatine transferred through breast milk may help support the infant's developing brain*, and while human trials are still catching up, the early signal is promising.

No clinical research has examined whether creatine monohydrate taken by nursing mothers transfers to breast milk in meaningful amounts.

Because this data gap exists, we recommend consulting your healthcare practitioner before starting creatine supplementation while pregnant or breastfeeding. Research into creatine and perinatal stages, including lactation, is an active area of interest, and we'll update our guidance as data emerges.

Potential Benefits of Creatine While Pregnant†

Some preliminary studies show several benefits of creatine supplementation for both mothers and babies. However, there haven’t been any large-scale studies. One recent animal study offers some reassurance here: a 2025 animal study found that maternal creatine supplementation throughout a full-term pregnancy had no measurable effect on gestational weight gain, fetal growth, umbilical or cerebral blood flow, or offspring glucose tolerance and body composition after birth — an early safety signal that researchers say lays the groundwork for future human studies.

Possible neuroprotective effects

Labor and delivery can sometimes lead to short periods of reduced oxygen for the baby. Some animal studies suggest that maternal supplementation before birth may help buffer the baby’s brain against low-oxygen damage. Scientists hypothesize that this effect supports creatine's role in baby brain development, but human studies have yet to confirm this benefit.

Support for muscle and energy metabolism during labor*

Some preliminary data indicate that creatine may support maternal muscle performance during pregnancy and help sustain energy during childbirth.* Since labor is one of the most energy-intensive physical events the body experiences, this line of research is compelling, but more research is necessary.

What Research Says About Creatine and Breast Milk†

Research shows that creatine occurs naturally in breast milk in small amounts, especially in colostrum, and provides about 9% of the infant’s daily requirements. These levels gradually stabilize as milk matures. 

We don’t yet know how much creatine is transferred during breastfeeding if a mother supplements with creatine monohydrate. The data is still evolving, and further clinical research is still needed.

Can Creatine Support Postpartum Recovery†?

It’s understandable why new moms are curious about creatine. Postpartum recovery is demanding, and fatigue is real—especially while breastfeeding. Since creatine helps generate energy in muscle tissue, some women wonder whether creatine could be a powerful tool in the months after giving birth. If you’re returning to exercise, creatine may help support strength and reduce mental fatigue.*

Because clinical data are limited, we recommend consulting your healthcare practitioner before starting creatine supplementation while pregnant or breastfeeding. Research into creatine and perinatal stages, including lactation, is an active area of interest, and we'll update our guidance as data emerges.

Creatine Safety: What We Know

The Big Picture

With 600+ clinical studies and 30+ years of research, including long-term studies, creatine is one of the most well-researched supplements out there, and it's considered safe for healthy adults. That said, research in pregnant and breastfeeding women is much more limited.

People react differently to supplements, so always consult your healthcare practitioner and choose a high-quality, third-party-tested product.

Safety: Possible Side Effects

The most common side effects are mild:

• Bloating or digestive discomfort at large doses: A micronized creatine can help if you're sensitive. For example, Needed’s Biomicronized (™) Creatine Powder completely dissolves in water: no sludge, no grit, no bloating, no bulking. 
• Temporary weight gain from water retention: creatine shifts water into your muscle cells to support their function and growth.

This is why our serving size is 5g, and why staying hydrated throughout the day matters: it helps your body manage that water shift comfortably.

Creatine and Pregnancy/Breastfeeding Safety FAQs

• Will creatine dehydrate me or cause cramping? Not based on the research. This idea dates back to early theories that creatine might pull water away from the rest of the body. But studies have found the opposite; creatine users report less cramping and dehydration than non-users. Staying hydrated is still smart, simply because creatine is actively moving water into your cells.
• Is creatine bad for your kidneys? This concern is largely hypothesized, not demonstrated. Creatine supplementation may raise blood creatinine, the marker providers use to estimate kidney function. Systematic reviews and meta-analyses have found that a rise in creatinine levels doesn't reflect true kidney damage in healthy adults.
• One nuance for pregnancy specifically: prenatal care leans on creatinine to help screen for pregnancy-related kidney changes, including preeclampsia, and no studies have looked at this specific lab interaction during pregnancy. If you're supplementing, tell your practitioner so they can interpret your bloodwork with that in mind.

Pregnancy and Breastfeeding

Pregnancy brings unique metabolic and hormonal changes, and creatine hasn't been extensively studied in this population. Most of what we know comes from animal research, not human clinical trials. When in doubt, talk to your healthcare practitioner.

Because creatine pulls water into muscle cells, breastfeeding moms with high hydration needs may become dehydrated more easily. Paying attention to hydration is especially important here.

Supplement quality is another consideration

Creatine is generally safe, but manufacturing standards vary, and some products contain fillers or contaminants. Choosing a creatine that's third-party tested and holds transparent quality standards gives you peace of mind that what you see is what you get. For example, Needed’s Creatine is NSF Certified for Sport®, which means it has up to twice-yearly audits of the manufacturing facility, toxicological review of ingredients and verification that the product meets the claims and contents shown on the label, and includes testing for potentially harmful levels of contaminants, such as heavy metals, pesticides, and more.

With NSF Certified for Sport®, products are also tested for more than 290 substances banned by major athletic organizations and anti-doping associations. For further peace of mind, this product has earned Clean Label Project’s Certified Award and Pesticide-Free Certification. This means the finished product was independently tested against Clean Label Project’s published limits for contaminants such as heavy metals, pesticides, and plasticizers, as well as an expanded pesticide panel that includes glyphosate for the Pesticide-Free Certification. 

TL;DR considerations to keep in mind:

• Limited human safety data in pregnant and breastfeeding women. Most evidence comes from animal research, not clinical trials. When in doubt, ask your healthcare practitioner.
• Digestive issues. Some people experience bloating, nausea, or mild GI discomfort. A micronized creatine can help. For example, Needed’s Biomicronized (™) Creatine Powder completely dissolves in water: no sludge, no grit, no bloating, no bulking.
• Water retention. Creatine draws water into muscle tissue, which can mean temporary retention or swelling. Stay hydrated, and consider electrolytes.
• Dehydration and kidney concerns are largely theoretical, not demonstrated in healthy adults, but tell your practitioner you're supplementing so they can interpret bloodwork accurately.
• Supplement quality. Some products contain impurities or unverified ingredients. Choose one that's third-party tested with high-quality standards.

Expert Recommendations

If you are exploring creatine, ask your healthcare practitioner or lactation consultant about creatine while pregnant and breastfeeding. 

Lab-monitoring interference: Creatine can raise blood creatinine independent of true kidney function. Let your practitioner know if you're supplementing so they can interpret lab results correctly.

Other Ways to Support Energy While Nursing

If you’re feeling drained while breastfeeding, you are far from alone. Breastfeeding takes a lot of extra energy. 

These approaches help stabilize blood sugar, support milk supply, and improve mental clarity.* Many fall under the category of natural energy support for new moms and have a stronger evidence base.

A Postpartum Diet That Packs a Punch

Good, whole nutrition will always be the best starting point for optimal health outcomes. We talk about how tiring pregnancy is, but postpartum is one of the most nutritionally demanding phases of life. 

Nutrient-dense foods that prioritize protein and fiber, along with minerals like magnesium and calcium, can provide the extra energy and satiety needed to get through those first few weeks and months. Focus on healing foods that aren’t too harsh on the stomach.

Lifestyle Strategies

When it comes to postpartum recovery, there isn’t any one thing to focus on; rather, you should look to incorporate a few simple strategies to help the process:

• Eat small, frequent meals combining complex carbs, protein, and healthy fats.
• Stay hydrated—breastfeeding increases your daily water needs.
• Incorporate gentle movement like walking or stretching.
• Prioritize rest whenever possible (yes, naps count!).
• Include nutrients that naturally support energy:
  • Magnesium-rich foods: leafy greens, nuts, seeds
  • Iron: lean meats, lentils, fortified cereals (you may also add a supplement if necessary and your healthcare provider clears it)
• Omega-3s: salmon, sardines, chia seeds

Pair these strategies with a breastfeeding-safe postpartum supplement. You can even continue to take your prenatal, as prenatals like Needed’s contain many of the nutrients that support your postpartum needs. 

Supplements Considered Safe During Breastfeeding

If you’re looking at Creatine for its energy and antioxidant benefits*, there are other supplements that have a stronger safety profile during lactation:

• Omega-3 DHA
• Magnesium glycinate
• Vitamin D
• Collagen (if tolerated)

Always review supplements with your clinician, even those marketed as “breastfeeding safe.” Your individual health status matters.

When to Consult Your Healthcare Practitioner

Before taking anything while nursing, it’s important to talk to your doctor. Your healthcare practitioner can help determine whether supplementation is appropriate based on your health, exercise level, and your baby’s needs.

Summary and Key Takeaways

Early mechanistic research points to creatine playing a meaningful role in healthy pregnancies and breastfeeding. We recognize the growing body of evidence supporting creatine's role across every stage of a woman's life — including pregnancy and breastfeeding. As the science evolves, so does our perspective.

Your body and breast milk have small amounts of naturally occurring creatine, supplying a meaningful share of your baby's daily creatine needs from day one. What we don't yet know is how much maternal creatine supplementation adds to that supply through breast milk, especially in the first six months when infants are most dependent on human milk. LactMed, the NIH's clinical reference on medications and lactation, currently classifies creatine supplementation as not recommended during breastfeeding unless a healthcare practitioner has specifically approved it; a stance that reflects the lack of data, not evidence of harm.

As always, pregnant and breastfeeding individuals should consult their healthcare practitioner before starting any new supplement.

*These statements have not been evaluated by the Food and Drug Administration.  This product is not intended to diagnose, treat, cure, or prevent any disease.

† Because a clinical data gap exists, our guidance is to consult your healthcare practitioner before starting creatine supplementation while pregnant or breastfeeding. Research into creatine and perinatal stages, including lactation, is an active area of interest, and we'll update our guidance as data emerges.