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Navigating menopause often involves exploring various approaches to manage symptoms like hot flashes, sleep disturbances, and mood changes. For many women, natural supplements offer an appealing option, perceived as gentle or more aligned with personal health philosophies. However, the world of supplements is vast, and understanding which ones have research supporting their use can be challenging.
This article aims to provide an evidence-based overview of some common natural supplements promoted for menopause symptom relief. We will examine the current scientific understanding of their potential benefits, drawing directly from available research, and highlight where the evidence is strong, moderate, or limited. It’s important to remember that ‘natural’ does not always equate to ‘harmless,’ and consulting with a healthcare provider before starting any new supplement is always recommended.
Black Cohosh (Cimicifuga racemosa)
Black cohosh is one of the most widely studied herbal supplements for menopausal symptoms. Several reviews and meta-analyses have investigated its effectiveness, particularly for hot flashes and night sweats. Recent research, including an updated pairwise meta-analysis from 2023, suggests that black cohosh extracts may offer some relief for menopausal symptoms [1]. Another review from 2024 also explored its efficacy and safety in managing menopausal symptoms [2].
The specific extract iCR (isopropanolic black cohosh extract) has been a focus of some studies. A 2021 review and meta-analysis updated the evidence for iCR in addressing menopausal symptoms [3]. The Spanish Menopause Society issued a statement in 2022 regarding black cohosh efficacy and safety for menopausal symptoms, indicating its recognition within medical guidelines [4]. While the evidence is moderate, it’s important to note that individual responses can vary, and more research may continue to refine our understanding of its precise mechanisms and optimal use.
Safety deserves more than a single reassuring line. Products labelled as black cohosh have been implicated in cases of clinically apparent acute liver injury, some of them severe enough to lead to emergency liver transplantation or death, and the National Institute of Diabetes and Digestive and Kidney Diseases maintains a dedicated LiverTox monograph covering those reports [5]. A 2024 analysis in JAMA Network Open lists black cohosh among the six botanicals most frequently reported in herb-induced liver injury in the United States [6].
Causality is contested rather than settled, and the disagreement is worth knowing about. A structured review of the early reported cases, scored with the CIOMS causality scale, concluded that causality was not established in any of them and pointed instead to authentication and adulteration problems in some products [7]. Later cases assessed individually have documented liver enzymes returning to normal once the supplement was stopped [8]. What the sources agree on is the practical guidance: anyone with existing liver disease should avoid black cohosh, and anyone taking it should stop and seek medical care if jaundice, dark urine, unusual fatigue or right-sided abdominal pain develops.
Routine side effects and interactions with other medications should still be discussed with a healthcare professional [2].
Phytoestrogens (Soy Isoflavones, Red Clover)
Phytoestrogens are plant-derived compounds that have a chemical structure similar to estrogen, leading to their common nickname ‘dietary estrogens.’ These compounds, found in foods like soy and flaxseed, as well as in supplements derived from sources like soy and red clover, have been investigated for their potential to help manage menopausal symptoms. Isoflavones are a specific class of phytoestrogens found abundantly in soy [9].
The research on phytoestrogens for menopausal symptoms presents a mixed picture. A 2015 meta-analysis and systematic review explored the efficacy of phytoestrogens for menopausal symptoms [10]. While some studies suggest a modest benefit, particularly for hot flashes, others have shown less conclusive results. A systematic review from 2021 also examined the impact of phytoestrogens on urogenital menopause symptoms, indicating ongoing research in this area [11].
Overall, the effectiveness of phytoestrogens may depend on factors such as the specific compound, dosage, individual metabolism, and the duration of use. The evidence is moderate, but not as consistently strong as for some other interventions, and benefits may be more pronounced in certain populations or for specific symptoms.
Other Herbal Medicines and Nutraceuticals
Beyond black cohosh and phytoestrogens, a variety of other herbal medicines and nutraceuticals are explored for menopausal symptom relief. A review from 2017 provided an overview of effective herbal medicines in controlling menopausal symptoms, highlighting the breadth of traditional remedies considered [12].
The field of nutraceuticals, which refers to food or food components that provide health benefits beyond basic nutrition, is also gaining attention for menopausal complaints. A 2019 article discussed a nutraceutical approach to menopausal complaints, suggesting that certain dietary components and supplements may play a supportive role [13].
However, for many of these ‘other’ natural supplements, the scientific evidence is often less robust, consisting of smaller studies or lacking comprehensive meta-analyses. Examples include dong quai, evening primrose oil, and ginseng. While some women report anecdotal benefits, strong, consistent research to support widespread recommendations is often lacking for these options. It’s crucial to approach these with caution and a critical eye, prioritizing options with more established evidence.
What Doesn’t Have Strong Evidence (Yet)
It’s equally important to understand which natural supplements currently lack strong, consistent scientific evidence for widespread recommendation for menopause symptom relief. While many products are marketed with claims of benefit, robust clinical trials are often absent or have yielded inconclusive results.
For some supplements, initial promising findings from small studies have not been replicated in larger, more rigorous trials. For others, the mechanism of action is unclear, or the quality and standardization of the supplement itself can vary significantly, making it difficult to assess effectiveness consistently. Women exploring natural options should be discerning and prioritize supplements backed by moderate to strong evidence from reputable sources, such as those discussed above [14].
The landscape of natural supplements is continuously evolving, and new research emerges regularly. However, at present, many popular ‘natural’ remedies for menopause lack the substantial body of evidence needed to confidently recommend them for broad use.
References
- Black cohosh extracts in women with menopausal symptoms: an updated pairwise meta-analysis. Menopause (New York, N.Y.), 2023
- Exploring the Efficacy and Safety of Black Cohosh (Cimicifuga racemosa) in Menopausal Symptom Management. Journal of mid-life health, 2024
- Review & meta-analysis: isopropanolic black cohosh extract iCR for menopausal symptoms – an update on the evidence. Climacteric : the journal of the International Menopause Society, 2021
- Black cohosh efficacy and safety for menopausal symptoms. The Spanish Menopause Society statement. Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology, 2022
- Black Cohosh. LiverTox: Clinical and Research Information on Drug-Induced Liver Injury, NIDDK, 2012, chapter updated 2025
- Estimated Exposure to 6 Potentially Hepatotoxic Botanicals in US Adults. JAMA network open, 2024
- Herb induced liver injury presumably caused by black cohosh: a survey of initially purported cases and herbal quality specifications. Annals of hepatology, 2011
- Case of cholestatic drug-induced liver injury (DILI) associated with black cohosh. BMJ case reports, 2021
- Isoflavones. Molecules (Basel, Switzerland), 2019
- Efficacy of phytoestrogens for menopausal symptoms: a meta-analysis and systematic review. Climacteric : the journal of the International Menopause Society, 2015
- Impact of phytoestrogens on treatment of urogenital menopause symptoms: A systematic review of randomized clinical trials. European journal of obstetrics, gynecology, and reproductive biology, 2021
- A review of effective herbal medicines in controlling menopausal symptoms. Electronic physician, 2017
- A Nutraceutical Approach to Menopausal Complaints. Medicina (Kaunas, Lithuania), 2019
- Complementary and Alternative Medicine for Menopause. The Nursing clinics of North America, 2024
These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease. Content is for informational purposes only and is not medical advice; consult a qualified healthcare provider before starting any supplement. As an Amazon Associate we earn from qualifying purchases.
