A New Look at Ashwagandha for Hormones, PCOS & PMS

Tamika Woods 1 min read

You’ve probably heard of ashwagandha as a “stress herb” - but new research is showing it plays an even more impactful role in women’s hormonal health than we once thought.

A newly published 2026 scientific review explored how Withania somnifera (ashwagandha) interacts with female hormones, with a special focus on PCOS and PMS. While it’s not a miracle cure (as nothing is), the findings help explain why some women feel calmer, more balanced, and more resilient with positive changes to their PCOS symptoms when stress is addressed alongside direct hormonal support.

Why Stress Matters So Much for PCOS

PCOS isn’t just an “ovary problem.” It’s strongly influenced by how the brain, adrenal glands, metabolism, and ovaries talk to each other.

This paper highlights the role of the stress–hormone system (the HPA axis) in PCOS. When stress is chronically high, cortisol can:

  • Worsen insulin resistance
  • Disrupt ovulation
  • Increase adrenal androgens
  • Make cycles more irregular

Ashwagandha stood out because it consistently lowered cortisol in human studies - a key upstream driver of many PCOS symptoms.

Hormone Balance Without Raising Testosterone

One of the biggest concerns with supplements in PCOS is: “Will this raise testosterone?”

Reassuringly, the review found that:

  • Ashwagandha does not increase testosterone in women
  • In some studies, it reduced DHEA-S (an adrenal androgen often elevated in PCOS)
  • The testosterone-boosting effect seen in men does not appear in women

This makes ashwagandha unusually relevant for PCOS compared to many “energy” or “adaptogen” herbs.

Supporting Ovulation & Cycle Signalling

In PCOS, the brain often sends the wrong signals to the ovaries - especially elevated LH compared to FSH.

The review highlights evidence suggesting ashwagandha may:

  • Help normalise LH and FSH signalling
  • Support healthier estrogen balance
  • Improve ovarian structure and follicle development in PCOS animal models

While human PCOS-specific trials are still needed, these findings support why stress regulation is increasingly seen as foundational for cycle repair.

Metabolic Support 

Insulin resistance is one of the most common drivers of PCOS symptoms - even in lean women.

Across multiple human studies (not PCOS-specific but metabolically relevant), ashwagandha was linked to:

  • Improved blood sugar regulation
  • Better cholesterol markers
  • Reduced inflammation
  • Lower blood pressure

These metabolic improvements matter because hormones don’t work well in an inflamed, insulin-resistant environment.

PMS & Emotional Symptoms: Where Ashwagandha Really Shines

For PMS, the strongest evidence was around mood, stress, sleep, and fatigue.

The review found that ashwagandha may help:

  • Reduce anxiety and emotional reactivity
  • Improve sleep quality
  • Support GABA and serotonin pathways (the calming brain chemicals)
  • Ease fatigue and stress sensitivity during the luteal phase

This makes it particularly relevant for women whose PMS is dominated by overwhelm, irritability, poor sleep, or burnout.

Safety Notes:

The authors were clear about boundaries and cautions:

  • Generally well tolerated in most adults
  • Not recommended in pregnancy or breastfeeding
  • Use caution with thyroid conditions, autoimmune disease, or liver disease
  • Rare cases of liver injury have been reported, especially with poor-quality products

Quality, dosing, and individual context matter.

** As with all new supplements, we suggest running the ingredient lists by your healthcare practitioner to make sure the combination is appropriate for you as we are unable to take into account any individual considerations or medications you may be taking.

As we know, PCOS and PMS are often treated as purely hormonal conditions, when in reality they are part of a much bigger and more holistic biological picture.

Those of you who identify with the Adrenal PCOS type know how deeply unregulated stress can affect insulin response, blood sugar balance, sleep and hormone regulation.

At Nourished, we have been supporting this area for some time through our Calm + Sleep formula. It includes Ashwagandha alongside Magnesium bisglycinate, Chamomile, Passionflower, Tart Cherry and L-Theanine to support stress adaptation and sleep quality. This is our targeted support for those navigating the Adrenal PCOS type. 

Education around the impact of stress and cortisol on overall health is especially meaningful to me personally. I identify with this PCOS type myself, and it is one that is often overlooked, particularly as it can commonly overlap with lean PCOS.

The good news is that the nervous system is highly adaptable. With the right support and care, it is possible to make positive changes that can influence skin concerns, hair growth, fertility and mental health. I’ve seen this first-hand and I hope you do too.

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Tamika Woods

About Tamika Woods

Tamika Woods is a Clinical Nutritionist and bestselling author of PCOS Repair Protocol. She holds a Bachelor of Health Science (Nutritional Medicine) from Endeavour College of Natural Health and a Bachelor of Education from UNSW, graduating with Honours in both.

She is a certified Fertility Awareness Method Educator and ANTA member, and the recipient of the ANTA Graduate Award. After a decade managing her own PCOS, Tam now helps women find hormonal balance through evidence-based protocols.

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