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Probiotics for Menopause: How Your Gut Affects Your Hormones

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VeraTenet Research Team Our editorial team reviews peer-reviewed literature on metabolic health, hormonal balance, and science-backed supplementation. Based in Sunnyvale, CA. All content reviewed for regulatory compliance.
VeraTenet · Sunnyvale, CAResearch Brief

Probiotics and Menopause: What Research Suggests About the Gut-Hormone Connection

Key Takeaway: Your gut microbiome contains a collection of bacteria called the estrobolome that may influence how your body metabolizes estrogen. Research suggests that gut microbial balance during menopause may relate to overall wellbeing. Targeted probiotic strains — particularly Lactobacillus and Bifidobacterium species — have been studied for potential support of digestive and general health during the transition.*
What is the Estrobolome? The estrobolome is a collection of gut bacteria that produce beta-glucuronidase, an enzyme that may influence estrogen metabolism. Research suggests that when the estrobolome is balanced, it may help regulate circulating estrogen levels. When disrupted (dysbiosis), estrogen metabolism may be affected. Read the 2017 review in Maturitas on PubMed →

When most people think of probiotics, they think of digestion. Bloating, constipation, occasional discomfort. And yes — probiotics are often studied in digestive health contexts. But for women in perimenopause and menopause, the gut-hormone connection may run deeper than digestion alone.

Your gut is home to trillions of microorganisms — and a specific subset of them, called the estrobolome, may play a role in how your body processes estrogen. These bacteria produce an enzyme called beta-glucuronidase, which research suggests may influence whether used estrogen is cleared efficiently or recirculates. When the estrobolome is affected — by stress, antibiotics, diet, or aging — estrogen metabolism may be altered, which some researchers have linked to variability in menopausal experience.*

What is Beta-Glucuronidase? Beta-glucuronidase is an enzyme produced by certain gut bacteria. It can reverse the glucuronidation process (a Phase II liver metabolism pathway), which may cause already-processed estrogen to re-enter circulation. Research is ongoing into how beta-glucuronidase activity may relate to estrogen balance. PubMed →

Probiotic Strains Studied in Women's Health Research

Lactobacillus rhamnosus

One of the most extensively studied probiotic strains. Published research has examined its role in vaginal microbiome balance, digestive comfort, and general wellbeing.*

Lactobacillus acidophilus

Research has explored this strain's role in digestive health and general vaginal microbiome support. Studies have also examined it in broader nutritional contexts.*

Bifidobacterium longum

Research suggests this strain may be relevant to the gut-brain axis. Studies have explored its role in gut barrier function and general digestive wellbeing.*

Lactobacillus gasseri

Emerging research on specific strains — including a 2022 double-blind, placebo-controlled study on L. gasseri CP2305 in women aged 40–60 — suggests this strain family may support general wellbeing during the menopausal transition.*

General considerations when evaluating probiotic supplements. This is educational information, not medical advice.
What to Look For Why It Matters
Multi-strain formula (Lactobacillus + Bifidobacterium) Different strains have been studied for different aspects of gut health*
Meaningful CFU count Research studies typically use dosages ranging from 1–100 billion CFU depending on strain*
Shelf-stable or refrigerated Helps ensure viable organisms at time of consumption*
No unnecessary fillers or common allergens Simple formulas may be preferable for sensitive individuals*
Third-party tested Verifies label accuracy for strain identification and CFU count*

Supporting Your Estrobolome Beyond Probiotics

Fiber intake: Prebiotic fiber from vegetables, legumes, and whole grains supports beneficial gut bacteria. General dietary guidelines recommend adequate daily fiber intake for overall gut health.*

Limit processed foods: Diets high in added sugar, refined carbohydrates, and certain artificial sweeteners have been associated with changes in gut microbial balance in published research.*

Fermented foods: Kimchi, sauerkraut, kefir, and yogurt contain live bacterial cultures. A 2021 study published in Cell found that a diet high in fermented foods was associated with increased gut microbial diversity over 10 weeks.*

Consult your healthcare provider. If you're experiencing significant digestive or hormonal symptoms, talk to your healthcare provider. Conditions such as SIBO, inflammatory bowel disease, and thyroid disorders can share symptoms with menopause-related changes and may require professional medical evaluation.

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Our comprehensive 90-day protocol — featuring probiotics formulated with MAKTREK® targeted delivery technology, adaptogens, and chelated minerals — designed for women navigating the menopausal transition.*

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Frequently Asked Questions

Can probiotics support women during menopause?

Research suggests that a balanced gut microbiome — particularly the estrobolome — may play a role in estrogen metabolism. Targeted probiotic strains have been studied for potential support of digestive and general wellbeing during the menopausal transition.*

What is the estrobolome and why does it matter?

The estrobolome is a collection of gut bacteria that produce beta-glucuronidase, an enzyme that may influence estrogen metabolism. Research suggests that when this system is affected, estrogen may be recirculated rather than cleared.*

Which probiotic strains are studied in women's health?

Published research has examined Lactobacillus rhamnosus, L. acidophilus, Bifidobacterium longum, and L. gasseri among other strains in the context of women's health. Multi-strain formulas are commonly used in research.*

How long is probiotic use typically studied?

Most published research on probiotics evaluates outcomes over 4–12 weeks of consistent daily use. Gut microbiome changes are gradual — consistency tends to matter more than dose in research settings.*

Should I talk to my doctor before taking probiotics?

Yes. While probiotics are generally considered safe for most healthy adults, consult your healthcare provider before starting any new supplement — especially if you have immune system conditions, are taking immunosuppressive medications, have a history of SIBO, or have any existing health condition. Your provider can also help determine whether your symptoms may have other underlying causes that require evaluation.*

References

  • 1. Baker JM, Al-Nakkash L, Herbst-Kralovetz MM. Estrogen-gut microbiome axis: Physiological and clinical implications. Maturitas. 2017;103:45-53. PubMed →
  • 2. Vieira AT, Castelo PM, Ribeiro DA, Ferreira CM. Influence of Oral and Gut Microbiota in the Health of Menopausal Women. Front Microbiol. 2017;8:1884. PubMed →
  • 3. Sawada D, Sugawara T, Hirota T, Nakamura Y. Effects of Lactobacillus gasseri CP2305 on Mild Menopausal Symptoms in Middle-Aged Women. Nutrients. 2022;14(9):1695. PubMed →
  • 4. Wastyk HC, Fragiadakis GK, Perelman D, et al. Gut-microbiota-targeted diets modulate human immune status. Cell. 2021;184(16):4137-4153.e14. PubMed →

VeraTenet · Sunnyvale, California 94087

*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. The information provided is for educational purposes only and is not a substitute for professional medical advice. Individual results may vary. Consult your healthcare provider before starting any supplement regimen.

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