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Berberine has rapidly become one of the world’s most popular natural supplements. It’s widely promoted for helping manage blood sugar, insulin resistance, weight loss, cholesterol and polycystic ovary syndrome (PCOS). As more Australians discover its potential health benefits, one important question continues to appear in Google searches:
Can you take berberine during pregnancy?
The answer is not as straightforward as many supplement websites suggest.
Although berberine has shown promising results for people with Type 2 diabetes, prediabetes and PCOS, pregnancy is entirely different. During pregnancy, every supplement, medication and herbal remedy must be evaluated not only for its effects on the mother but also for its potential impact on the developing baby.
At present, there is no strong clinical evidence proving that berberine is safe during pregnancy, and most healthcare professionals recommend avoiding it unless specifically advised by a specialist.
In this comprehensive guide, we’ll examine:
- Is berberine safe during pregnancy?
- Can berberine cause miscarriage?
- Should women with PCOS stop taking berberine once pregnant?
- Is berberine safe while breastfeeding?
- Can berberine help gestational diabetes?
- What are the potential risks?
- What do Australian healthcare professionals recommend?
Whether you’re planning a pregnancy, have just discovered you’re pregnant or are researching supplements before trying to conceive, this guide will help you understand what the current scientific evidence actually says.
What Is Berberine?
Berberine is a naturally occurring plant compound that has been used in traditional medicine for thousands of years. Classified as an isoquinoline alkaloid, it has a long history in both Traditional Chinese Medicine (TCM) and Ayurvedic medicine, where herbal preparations containing berberine were commonly used to support digestive health and treat various infections.
In recent years, berberine has attracted significant interest from researchers around the world. Modern scientific studies have shown that it interacts with several important processes in the body, particularly those involved in blood sugar regulation, metabolism and cardiovascular health. As a result, it has become one of the most widely discussed natural supplements for people looking to improve their metabolic health.
Berberine isn’t produced synthetically. Instead, it is extracted from the roots, stems and bark of several plants, including barberry (Berberis vulgaris), goldenseal (Hydrastis canadensis), Oregon grape (Mahonia aquifolium), Chinese goldthread (Coptis chinensis) and tree turmeric (Berberis aristata). While these plants have been used traditionally for centuries, it is the purified berberine compound that is found in most modern dietary supplements.
One of the main reasons berberine has become so popular is its potential to support healthy blood sugar levels and improve the body’s response to insulin. Researchers have also investigated its effects on cholesterol, fat metabolism, liver health, inflammation and even the balance of beneficial bacteria in the gut microbiome. Although research is still ongoing, these findings have made berberine a popular supplement among people looking to improve their overall metabolic health.
Today, berberine is commonly used by people living with Type 2 diabetes, prediabetes, insulin resistance, metabolic syndrome, polycystic ovary syndrome (PCOS) and non-alcoholic fatty liver disease (NAFLD). Many people also take it as part of a broader strategy to support weight management and cardiovascular health, although the strength of evidence varies depending on the condition being treated.
While these potential benefits have made berberine one of the most researched natural supplements available, pregnancy is an entirely different situation. The physiological changes that occur during pregnancy can alter how supplements are absorbed, metabolised and transferred to the developing baby. This means that evidence supporting berberine’s use in non-pregnant adults cannot automatically be applied to pregnant women, making safety a far more important consideration than potential benefit.
Why Pregnancy Changes the Safety of Supplements
One of the most common misconceptions about herbal supplements is that if something is natural, it must also be safe. While it’s an understandable assumption, it’s not always accurate. Many naturally occurring compounds are biologically active, which means they can affect the body in powerful ways. In fact, some of today’s prescription medicines were originally derived from plants.
Pregnancy adds another layer of complexity. During this time, a woman’s body undergoes remarkable changes to support the growth and development of her baby. Hormone levels fluctuate dramatically, blood volume increases, the liver and kidneys process substances differently, the immune system adapts, placental blood flow changes, and the way nutrients and other compounds are absorbed and metabolised can all be altered.
These changes mean that a supplement which appears to be safe and well tolerated in a healthy adult may behave very differently during pregnancy. Some compounds can cross the placenta and reach the developing baby, while others may influence pregnancy hormones, fetal growth or other important developmental processes. Because a baby’s organs are forming throughout pregnancy, particularly during the first trimester, even small changes in exposure to certain substances can be significant.
This is why healthcare professionals are generally far more cautious about recommending supplements during pregnancy than they are for the general population. Unlike prescription medicines that have been extensively studied in pregnant women or have accumulated decades of safety data, most herbal supplements simply haven’t undergone large, well-designed clinical trials to establish whether they are safe for both mother and baby.
Berberine falls into this category. Although it has been the subject of considerable research for conditions such as Type 2 diabetes, insulin resistance and PCOS, there is still very limited high-quality evidence examining its safety during pregnancy. As a result, most healthcare professionals recommend avoiding berberine during pregnancy unless its use is specifically advised and monitored by an appropriately qualified specialist.
Is Berberine Safe During Pregnancy?
Based on the best scientific evidence available today, berberine is generally not recommended during pregnancy. While research into its potential health benefits continues to grow, there simply isn’t enough high-quality evidence to confirm that it is safe for use during pregnancy.
It’s important to understand that this recommendation does not mean researchers have proven that berberine causes birth defects or pregnancy complications. Rather, it reflects a long-standing principle of obstetric medicine: when there isn’t sufficient evidence to demonstrate that a substance is safe for a developing baby, the safest approach is usually to avoid unnecessary exposure until more research becomes available.
Pregnant women and their unborn babies are understandably not included in most early clinical trials, which means safety data for many supplements are limited. For this reason, healthcare professionals often take a precautionary approach, weighing not only the potential benefits of a supplement but also the uncertainties surrounding its use during pregnancy.
Several factors contribute to this cautious stance. Firstly, there are very few well-designed studies examining the use of berberine in pregnant women, making it difficult to accurately assess its safety. Animal studies have also raised questions about possible effects on fetal development, although these findings cannot be directly applied to humans. Researchers have also found evidence suggesting that berberine may cross the placenta, meaning the developing baby could be exposed to the compound during critical stages of growth.
Another area of concern involves bilirubin metabolism. Laboratory studies suggest berberine may interfere with the way bilirubin binds to proteins in the bloodstream, potentially increasing the theoretical risk of jaundice and related complications in newborns. While this has not been conclusively demonstrated in human pregnancies, it is considered an important reason for caution.
Finally, because berberine has not been studied over the long term in pregnant women, researchers still do not know whether there could be subtle effects on fetal development that only become apparent later in childhood.
Taken together, these uncertainties explain why organisations specialising in maternal and fetal health, along with many obstetricians, endocrinologists and pharmacists, generally recommend avoiding berberine during pregnancy unless there is a compelling medical reason and its use is supervised by an appropriately qualified healthcare professional.
Why Are Doctors Concerned About Berberine During Pregnancy?
The recommendation to avoid berberine during pregnancy isn’t based on a single study or one specific risk. Instead, it comes from a combination of scientific findings, theoretical concerns and, perhaps most importantly, the lack of high-quality research involving pregnant women.
While berberine has been studied extensively for conditions such as Type 2 diabetes and insulin resistance, pregnancy introduces a completely different set of safety considerations. Researchers must consider not only how the supplement affects the mother but also how it may affect the developing baby, both before birth and after delivery.
Several key factors explain why doctors, obstetricians and maternal health specialists recommend caution.
Berberine May Cross the Placenta
The placenta plays an extraordinary role during pregnancy, supplying oxygen and nutrients to the developing baby while helping remove waste products. Although it provides an important protective barrier, it is not impenetrable. Many medications, chemicals and naturally occurring compounds are able to cross the placenta and reach the baby.
Research suggests that berberine may also cross this barrier. If this occurs, the developing baby could be exposed to the compound during critical stages of growth, even though its effects on fetal development have not been thoroughly studied in humans.
This uncertainty is particularly important during the first trimester, when the baby’s major organs are forming. During this period, even substances that appear safe for healthy adults may have very different effects on a rapidly developing fetus. Until more comprehensive human studies are available, healthcare professionals generally consider it safer to avoid unnecessary exposure.
Potential Effects on Bilirubin Metabolism
Another reason doctors are cautious relates to a naturally occurring substance called bilirubin.
Bilirubin is produced when the body breaks down old red blood cells. Normally, it binds to a protein called albumin and is transported to the liver, where it is processed and eventually removed from the body.
Laboratory studies have suggested that berberine may interfere with this process by displacing bilirubin from albumin. If this occurs, it could theoretically increase the amount of free bilirubin circulating in the bloodstream.
For healthy adults, this is unlikely to cause significant problems. However, newborn babies have immature liver function and are naturally more susceptible to elevated bilirubin levels. In severe cases, excessive bilirubin can contribute to conditions such as neonatal jaundice, hyperbilirubinaemia and, in rare instances, a serious neurological disorder known as kernicterus.
It is important to emphasise that this concern is based largely on laboratory research and theoretical mechanisms rather than strong evidence from human pregnancy studies. Nevertheless, because the potential consequences for newborns can be serious, it remains one of the key reasons healthcare professionals recommend avoiding berberine during pregnancy and during the early months of infancy.
Animal Studies Raise Important Questions
When researchers are unable to conduct clinical trials in pregnant women, animal studies often provide the first clues about possible safety concerns. Although results from animal research cannot be directly applied to humans, they play an important role in identifying areas that require further investigation.
Some animal studies examining berberine have reported findings that raise questions about embryonic development, fetal growth and pregnancy outcomes, particularly when higher doses were used. Researchers have also observed signs of developmental toxicity under certain experimental conditions.
These findings do not prove that berberine causes similar problems in humans, and the doses used in animal studies are often much higher than those taken in dietary supplements. However, they do highlight the fact that important questions remain unanswered.
Until well-designed human studies demonstrate that berberine can be used safely during pregnancy, most healthcare professionals believe the potential uncertainties outweigh the possible benefits. This precautionary approach is consistent with the way many medications and supplements are managed during pregnancy, where protecting the developing baby is always the highest priority.
Can Berberine Cause a Miscarriage?
Can I take berberine while trying to conceive?
Some fertility specialists may recommend berberine before conception for women with PCOS or insulin resistance. However, it should generally be discontinued once pregnancy is confirmed unless your specialist advises otherwise.
Is berberine safe in the first trimester?
There are currently no high-quality human studies demonstrating safety during the first trimester. Because this is the most important period of fetal organ development, healthcare professionals generally recommend avoiding berberine.
Is berberine safer than metformin during pregnancy?
No. Metformin has been studied extensively during pregnancy and is prescribed when clinically appropriate. Berberine does not have comparable pregnancy safety evidence.
What if I accidentally took berberine before knowing I was pregnant?
Stop taking the supplement and contact your healthcare provider. Accidental early exposure does not necessarily mean harm has occurred, but your doctor can advise whether any additional assessment is appropriate.
Can I restart berberine after giving birth?
That depends on whether you’re breastfeeding and why you were taking berberine. Always discuss restarting supplements with your healthcare provider.
Final Thoughts
Berberine is one of the most extensively researched natural supplements for blood sugar management, insulin resistance and metabolic health in non-pregnant adults. However, pregnancy is a unique physiological state where the safety of both mother and baby must take priority over potential benefits.
While current research does not conclusively show that berberine causes harm during pregnancy, it also does not provide the robust evidence needed to confirm that it is safe. Concerns about placental transfer, bilirubin metabolism, animal studies and the lack of well-designed human clinical trials mean that most medical professionals recommend avoiding berberine throughout pregnancy and breastfeeding unless its use is specifically supervised by an appropriately qualified specialist.
If you are pregnant, planning a pregnancy or breastfeeding, always discuss any supplements, including herbal medicines and complementary therapies, with your GP, obstetrician, endocrinologist or pharmacist before taking them.
Doing so helps ensure that every decision is based on the best available scientific evidence and supports the healthiest possible outcome for both mother and baby.
Disclaimer
This article is intended for educational purposes only and should not be considered medical advice. It does not replace consultation with a qualified healthcare professional. If you are pregnant, planning a pregnancy, breastfeeding, or have diabetes or another medical condition, seek personalised advice from your doctor, obstetrician, endocrinologist, or accredited practising dietitian before taking any dietary supplement.
References
- National Center for Complementary and Integrative Health (NCCIH). Berberine: What You Need To Know.
- National Institutes of Health, Office of Dietary Supplements. Dietary Supplements During Pregnancy.
- American College of Obstetricians and Gynecologists (ACOG). Gestational Diabetes Mellitus Practice Bulletin.
- International Federation of Gynecology and Obstetrics (FIGO). Guidelines on gestational diabetes.
- Briggs GG, Freeman RK, Towers CV. Drugs in Pregnancy and Lactation.
- Wang Y, et al. “Berberine and insulin resistance: mechanisms and clinical applications.” Clinical Nutrition.
- Yin J, et al. “Efficacy of berberine in patients with type 2 diabetes mellitus.” Metabolism.
