The Best Supplements for Polycystic Ovary Syndrome

Confused About Supplements for PCOS? You’re in the right place.

If you’ve ever found yourself staring at a shelf of supplements (or scrolling through endless TikToks) wondering which ones actually help with PCOS, you’re in good company. 

From inositol to zinc to maca root, there’s no shortage of advice out there… but not all of it is backed by science.

As a registered dietitian who specializes in PCOS, I’ve helped hundreds of women cut through the noise and find simple, evidence-based strategies that actually work. 

Supplements can play a helpful role – when used wisely. But figuring out what’s worth your time (and money) can feel overwhelming fast.

That’s where this guide comes in. In this guide you we will cover:

• Which supplements may support hormone balance, blood sugar, mood, energy, and fertility
• What the research says, and what it doesn’t
• How to choose quality supplements (and avoid common pitfalls)
• Which ones are more hype than help

Let’s clear up the confusion so you can make informed choices, not impulsive ones.

Let’s go!

⚠️ Note: This guide is for educational purposes and not a substitute for medical advice. Always speak with your healthcare provider before starting new supplements – especially if you’re on medications or managing a health condition. 

What Is PCOS?

Throughout this article, I’ll use the term PCOS because it’s still the most widely recognized and commonly used name for this condition. However, you may also come across the term PMOS (PolyMetabolic Ovary Syndrome). Some researchers have proposed this name because they believe it better reflects the metabolic nature of the condition. While the terminology may evolve over time, the underlying condition remains the same.

Regardless of the name, PCOS/PMOS is a complex hormonal and metabolic condition that affects approximately 1 in 10 women of reproductive age, although many remain undiagnosed for years.

While the exact cause of PCOS isn’t fully understood, it is commonly associated with several hormonal and metabolic changes, including:

• Higher levels of androgens (male-type hormones, such as testosterone)
• Insulin resistance
• Low-grade chronic inflammation

These changes can affect many aspects of health, including your menstrual cycle, ovulation, energy levels, skin, mood, metabolism, and more.

There is no one-size-fits-all experience with PCOS. Some people struggle most with irregular periods and fertility, while others are more affected by insulin resistance, cravings, acne, unwanted hair growth, or difficulty managing their weight.

The good news? PCOS is manageable.

With the right support — including nutrition, regular movement, quality sleep, stress management, and, in some cases, evidence-based supplements — you can take meaningful steps toward improving your symptoms and feeling your best.

Want to learn more about PCOS and how it’s diagnosed? Check out the PCOS 101 guide for a complete beginner-friendly overview.

Do Supplements Help PCOS?

Short answer: some supplements can support PCOS when used strategically and in the right context.

But they’re not magic pills. 

And they’re not a substitute for foundational lifestyle changes like nutrition, movement, sleep, and stress support.

Dietary supplements are often positioned as quick fixes or “hormone balancers.” And if you’ve ever hit add to cart after seeing a convincing influencer reel, you’re not alone. 

Supplements have become a big business in the world of PCOS. 

But here’s the thing: just because a supplement is trending doesn’t mean it’s helpful – or safe – for PCOS.

As a registered dietitian, I’ve seen firsthand how confusing (and expensive) this can get. 

Many of my clients come to me with cabinets full of half-used bottles they bought out of hope, frustration, or social media pressure… and no real idea if any of it is working.

Here’s what matters most:

• Evidence over hype. The best supplements are backed by clinical research – not just anecdotal stories or sponsored posts.
• Personalization over generalization. What works for one person might not work for another. Your symptoms, goals, and PCOS root causes matter.
• Quality and dosage matter. Not all supplements are created equal. Cheap brands with flashy claims may cut corners on ingredients, purity, and effectiveness.

Before starting any supplement, it’s worth asking:

• What am I hoping this will help with?
• Is there research to support its use for that goal?
• Am I already working on this through food or lifestyle changes? 
• Will this interact with my current medication? 

Supplements can complement your PCOS management plan. But they work best when they’re supportive – not central.

In the next section, I’ll walk you through the research and some relevant supplements that may be helpful for PCOS symptoms management – along with how to use them safely, and when to have a conversation with your provider.

Let’s dig into what PCOS supplements work (and what doesn’t). 

Inositol

Inositol is a type of sugar alcohol naturally made by the body and found in many foods like cantaloupe, grapefruit, lima beans, brown rice, whole wheat products, almonds, and walnuts.

It plays a role in insulin signaling and hormone balance – two of the biggest challenges in PCOS. 

While inositol exists in nine different forms, the two that stand out for PCOS are myo-inositol (MI) and D-chiro-inositol (DCI). These two forms work together to help your body respond better to insulin signaling and hormone balance.

How Inositol Helps PCOS: 

Up to 70% of women with PCOS have insulin resistance – meaning their cells aren’t responding to insulin properly, causing blood sugar to stay elevated longer than it should.

This not only messes with energy and cravings, but also contributes to hormone imbalances, irregular cycles, and higher androgen (testosterone) levels.

Inositol may improve insulin sensitivity, which may lead to:

• More regular ovulation and periods
• Improved egg quality and fertility
• Lower testosterone levels (hello, clearer skin!)
• Reduced sugar cravings and better blood sugar control

What the Research Says: 

Research shows that women with PCOS tend to have an imbalance in MI and DCI levels, which creates a disrupted ratio and affects how insulin works in the body.

Studies have found that a 40:1 ratio of myo-inositol to D-chiro-inositol most closely mimics the body’s natural balance – and may be effective for restoring ovulation in young obese women with PCOS.

Emerging and promising clinical trials have shown inositol may:

• Enhances insulin sensitivity
• Improve period regularity
• Reduce unwanted PCOS symptoms like acne and cravings
• Supports fertility outcomes

In fact, some studies suggest that inositol may be as effective as metformin for improving ovulation and pregnancy rates, but the authors do emphasize that more well-designed trials are needed to provide robust evidence of its benefits. 

Potential bonus? Because of its impact on blood sugar, myo-inositol may also support a healthy weight when combined with other lifestyle strategies. 

How to Use It

Heads-Up:

Inositol supplement is generally safe and well-tolerated, even at higher doses. But if you’re on medications for blood sugar (like metformin) or fertility, it’s smart to check with your provider before starting, just to make sure everything works together safely.

Omega-3 Fatty Acids

Omega 3 fatty acids are essential nutrients – your body can’t make them, so they must come for food sources or supplements. 

They are best known for supporting heart and brain health, but they also have a role in managing inflammation, insulin sensitivity, hormone regulation and mood – all key areas of concern for many with PCOS. 

The most helpful forms of Omega-3 fatty acids for PCOS are:

• EPA (eicosapentaenoic acid)
• DHA (docosahexaenoic acid)

These are the long-chain omega-3s found primarily in fatty fish like salmon, sardines, and mackerel or in high-quality fish oil supplements. 

Because high quality fish oil supplements can be hard to find and quite costly, I encouraged all my clients to focus on incorporating fatty fish sources into their diet twice a week. That way you do not have to rely on a pricey supplement! 

There’s also ALA (alpha-linolenic acid) from plant foods like flaxseeds, chia seeds, pumpkin seeds and walnuts, but the body isn’t great at converting ALA into the active forms (EPA and DHA), so food or supplement sources of EPA/DHA are usually more effective.

How Omega-3s May Help PCOS

Many people with PCOS have chronic low-grade inflammation, which can make symptoms worse and contribute to insulin resistance, mood issues, and higher androgen levels.

Omega-3s may help manage PCOS symptoms by:

• Reducing inflammation
• Improving insulin sensitivity
• Lowering triglycerides and supporting heart health
• Reducing testosterone levels (which can help with acne and hair growth)
• Supporting brain health and mood

They may also play a role in supporting ovulation and egg quality, especially in those trying to conceive.

While this all seems very promising, results vary based on dose, duration, and supplement quality. 

How to Use It

Heads-Up

• Quality matters here. I recommend you choose a reputable brand that’s been third-party tested for purity and free from contaminants like mercury or PCBs. 
• Omega-3s can have a mild blood-thinning effect. If you’re on blood thinners or have a bleeding disorder, check with your healthcare provider first.
• If you’re eating fatty fish (salmon, mackerel, herring, sardines, anchovies, and tuna) at least twice per week, you may not need a supplement. 

Vitamin D

Vitamin D is a fat-soluble vitamin that functions more like a hormone. It influences nearly every cell in your body – including those involved in insulin sensitivity, immune response, inflammation, ovulation, and mood regulation.

​​Yet up to 80% of people with PCOS are deficient in vitamin D. This makes it one of the most common – and correctable – nutritional gaps in PCOS care.

Why It Matters for PCOS

Low vitamin D levels may contribute to:

• Increased insulin resistance
• Irregular or absent ovulation
• Elevated androgens (e.g. testosterone)
• Low mood or seasonal depression
• Fatigue and poor immune function

Supplementing with vitamin D may help:

• Improve insulin resistance
• Support regular ovulation and menstrual cycles
• Lower androgen (testosterone) levels
• Boost mood and reduce symptoms of depression or anxiety
• Support healthy immune function
• Improve fertility outcomes

It’s especially important if you struggle with fatigue, irregular periods, frequent colds, or low mood – some of the most common signs of deficiency.

What the Research Says

Multiple studies have linked low vitamin D levels to worsening PCOS symptoms, including insulin resistance, irregular cycles, infertility, weight gain and mood issues.

Supplementing with vitamin D has been shown to:

• Improve insulin sensitivity and glucose metabolism
• Reduce total testosterone and other androgen markers
• Improve menstrual regularity
• Reduce inflammatory markers
• Support outcomes in fertility treatments
  

In one review, women with PCOS who took vitamin D saw improved metabolic markers even without other lifestyle changes. That’s how central this nutrient can be.

Vitamin D isn’t a magic fix, but for those who are deficient, it can be a game changer.

How to Use It

Optimal blood levels for general health and PCOS management are often in the range of 30–50 ng/mL, though some experts recommend slightly higher targets for reproductive and metabolic health.

Pro tip: If you’re not sure where your levels stand, ask your provider for a quick blood test (25-hydroxyvitamin D). Ideal levels are often in the range of 30–50 ng/mL for general health, though some experts aim for a bit higher in PCOS management.

Heads-Up

• Vitamin D is stored in fat, so excessive amounts can build up over time.
• While toxicity is rare, avoid high-dose supplementation unless guided by a provider.
• People with digestive issues, darker skin, limited sun exposure, or who live in northern climates may need more to maintain healthy levels.

Mini FAQ: 

Should I take vitamin D year-round?
Yes – especially if you live in Canada or the northern U.S., wear sunscreen regularly, or don’t get much sun exposure. Your skin makes less vitamin D in fall/winter, so supplementation is especially important then.

Can I get enough from food?
Not likely. Vitamin D is only found in small amounts in foods like fatty fish, egg yolks, and fortified dairy. Most people need a supplement to reach optimal levels – especially with PCOS.

If you are unsure whether you need a supplement, start with a simple blood test – many providers will run it as part of routine care.

Probiotics

Probiotics are live, beneficial bacteria that help keep your gut microbiome balanced. 

And while they’re most often associated with digestion, emerging research shows a strong link between gut health and hormone balance, inflammation, insulin resistance, and mood. 

Your gut and hormones are in constant communication – and when your gut is out of balance, your symptoms can be too.

A relatively new hypothesis in the world of PCOS research is that an imbalance of microbes in the gut can trigger the onset of PCOS.

That’s where probiotics come in.

Why Gut Health Matters for PCOS

The gut isn’t just responsible for digestion – it also plays a key role in:

• Regulating inflammation
• Balancing blood sugar
• Producing neurotransmitters like serotonin
• Supporting immune health

Studies have shown that women with PCOS have dysbiosis and less diverse gut bacteria than women without PCOS. Increased intestinal permeability (leaky gut) and small intestinal bacterial overgrowth (SIBO) have also been observed in women with PCOS.

This can contribute to chronic inflammation, insulin resistance, mood changes, and even cravings.

How Probiotics Can Help

Probiotics are beneficial bacteria that help restore balance to the gut microbiome. 

While they aren’t a magic fix on their own, research suggests they can:

• Reduce inflammation in the gut and body
• Improve insulin sensitivity and blood sugar control 
• Support digestive health and reduce bloating 
• Enhance mood and mental clarity through the gut-brain connection
• Possibly lower androgen, improving symptoms like acne and hirsutism

Some specific strains have been shown to influence testosterone levels, weight regulation, and even menstrual regularity in women with PCOS.

Although more research is necessary to validate the use of probiotic supplements it may be a viable option for treating PCOS in adult women. 

How to Choose a Probiotic Supplement

Not all probiotics are created equal. Probiotic benefits often depend on strain, dose, and duration – so not all products are equally effective.

Start with a lower dose if you’re new to probiotics or prone to bloating. Give your body a couple of weeks to adjust.

Pro Tip: Feed Your Probiotics with Prebiotics

Prebiotics are fibers that feed good gut bacteria, found in foods like:

• Garlic
• Onions
• Asparagus
• Bananas
• Oats

A combination of probiotics + prebiotics (called synbiotics) may be especially helpful in PCOS.

Heads-Up: 

• Not all probiotics require refrigeration, but some do – check the label! 
• If you experience worsened bloating or GI symptoms, try switching strains or reducing your dose before building back up.
• People with SIBO (small intestinal bacterial overgrowth) may need to proceed with extra caution – work with a provider if you suspect this.

For a deeper dive into how to improve your gut health (without doing a total lifestyle overhaul), check out my full post: PCOS & Gut Health: Why It Matters + What to Do. It’s a must-read if you’re navigating bloat, cravings, inflammation, or mood swings.

Magnesium

Magnesium is the fourth most abundant mineral in the body after calcium, iron, and potassium. 

It is a vital mineral that plays a crucial role in over 300 biochemical reactions in the body, including energy production, muscle and nerve function, blood sugar regulation, and bone health. 

Why Magnesium Matters for PCOS

Many people with PCOS are deficient in magnesium due to a combination of dietary gaps, higher stress levels, and the effects of insulin resistance. 

When magnesium is low, it can make symptoms like fatigue, mood swings, anxiety, sugar cravings, and poor sleep feel worse.

Magnesium plays a key role in:

• Blood sugar regulation
• Insulin sensitivity
• Cortisol (stress hormone) management
• Muscle and nerve relaxation
• Sleep quality

What the Research Says

Studies show that women with PCOS tend to have significantly lower magnesium levels, and that supplementation may:

• Improve insulin sensitivity and fasting glucose levels
• Reduce inflammation
• Support blood pressure and cardiovascular health
• Improve PMS symptoms and reduce menstrual pain
• Help with anxiety and sleep disturbances

Some research even suggests that magnesium, when paired with vitamin B6 or zinc, may help lower testosterone levels and support hormonal balance.

While more research is needed to confirm all mechanisms, the connection between magnesium, insulin resistance, and stress response is well documented. 

How to Use It

Start with a lower dose if you’re sensitive to digestive changes, and increase gradually.

Magnesium can also be absorbed through the skin via Epsom salt baths or magnesium oil sprays – especially helpful if you have digestive issues or struggle with oral supplements.

Heads-Up

• Too much magnesium (especially magnesium oxide or citrate) can cause loose stools. If that happens, reduce your dose or try switching to magnesium glycinate, which is gentler.
• If you’re taking thyroid meds or antibiotics, space your magnesium supplement at least 2–4 hours apart.

If you’re curious about which magnesium form is best, how to spot deficiency signs, or how magnesium impacts cravings, hormones, and stress – check out my full guide: Magnesium for PCOS: Everything You Need to Know. 

Zinc

Zinc is an essential trace mineral that your body needs in small amounts to function properly, but those amounts make a big impact. 

Zinc plays a vital role in hundreds of bodily processes, including immune function, wound healing, DNA synthesis, and cell division. 

It also acts as a powerful antioxidant, helping to reduce inflammation and oxidative stress, both of which are often elevated in PCOS. 

Why Zinc Matters for PCOS

Zinc plays a role in hundreds of enzyme reactions in the body – including those that impact:

• Skin health and oil production
• Hair growth and repair
• Immune system function
• Ovulation and reproductive hormones
• Blood sugar and insulin regulation
• Excess hair growth (hirsutism), by lowering androgens

Women with PCOS often have lower zinc levels, especially if they experience frequent acne, hair thinning, or inflammation. 

This is partly because zinc can be depleted by chronic stress, poor gut health, or diets low in zinc-rich foods (like meat, shellfish, seeds, and legumes).

What the Research Says

Studies suggest that zinc supplementation can:

• Reduce acne lesions and oiliness, especially when paired with other skin-supportive nutrients
• Support ovulation and egg quality in those with PCOS-related fertility struggles
• Help lower inflammation and oxidative stress, two big drivers of PCOS symptoms
• Support thyroid function, which is often sluggish in PCOS
• Potentially reduce excessive hair growth (hirsutism) by lowering androgen levels

While more large-scale studies are needed, correcting a zinc deficiency often leads to noticeable improvements in skin, hair, and hormone-related symptoms.

How to Use It

• Long-term high-dose zinc (over 30–40 mg daily) can interfere with copper absorption, which may impact immunity and iron metabolism.
• If you’re supplementing long-term or at higher doses, please check with your primary care provider.  with your provider about adding a small amount of copper.

N-Acetyl Cysteine (NAC)

N-Acetyl Cysteine (NAC) is a powerful antioxidant and a precursor to glutathione, your body’s master antioxidant. 

Due to its antioxidant properties, it’s gaining attention for its potential to improve insulin sensitivity and reduce chronic inflammation in those with PCOS. 

How NAC May Help PCOS:

NAC may offer multiple benefits for people with PCOS:

• Improves insulin sensitivity (helping regulate blood sugar and lower insulin levels)
• Supports ovulation and egg quality – especially for women with irregular cycles or fertility struggles
• Reduces oxidative stress, which can benefit skin, mood, and inflammation
• May lower testosterone levels, particularly when paired with other diet and lifestyle changes

When to Consider NAC:

You might consider NAC if:

• You’re trying to conceive and struggling with ovulation
• You’re dealing with inflammation or oxidative stress (think: fatigue, breakouts, poor recovery)
• You have insulin resistance and want additional support beyond inositol

However, it is important to know that while NAC has shown promise in research, it is not as well studied when compared to inositol in PCOS. 

More research is needed to understand its effects on PCOS fully and determine the optimal NAC supplementation dosages.

How to Use NAC

Heads-Up:

NAC is generally safe but may interact with medications like blood thinners or blood pressure meds. It’s best to check with your provider before starting, especially if you’re on fertility treatments.

Berberine

Berberine is a natural plant compound that has been used in traditional Chinese and Ayurvedic medicine for centuries.  

In recent years, it’s gained traction in the PCOS space because of its powerful effects on blood sugar, insulin, and weight regulation.

In fact, berberine is often compared to metformin – the commonly prescribed medication for PCOS – because of their similar mechanisms of action. 

How Berberine Helps with PCOS:

Berberine may be especially helpful for people with PCOS who struggle with insulin resistance, weight gain, or high cholesterol. 

Here’s what research shows it has the potential to do:

• Improves insulin sensitivity and helps lower fasting blood sugar
• Supports healthy weight loss, especially when combined with nutrition changes
• May help lower cholesterol and triglycerides
• Improves ovulation and fertility outcomes in some studies
• Reduces androgen (testosterone) levels, which can improve acne and unwanted hair growth

Some small studies suggest that berberine may even outperform metformin in improving metabolic markers and ovulation, but more research is needed before it’s considered a full replacement.

When to Consider Berberine:

You might consider berberine if:

• You have insulin resistance or prediabetes alongside PCOS
• You’ve been prescribed metformin but can’t tolerate it
• You’re working on weight loss and blood sugar balance 

How to Use Berberine

• Berberine is not recommended during pregnancy or while trying to conceive without medical guidance, as it has shown to affect the uterus and embryo development in animal studies.
• It can also interact with medications for blood sugar, blood pressure, and blood thinners – so it’s important to check with your healthcare provider before starting.
• Also worth noting: long-term use of berberine without breaks isn’t recommended. This is one to cycle strategically.

If you have more questions about Berberine, check out my blog post – Berberine for PCOS: A Comprehensive Guide

Coenzyme Q10 (CoQ10)

Coenzyme Q10 (CoQ10) is one of the lesser-known – but increasingly researched – supplements for PCOS. 

Naturally produced in the body, CoQ10 plays a vital role in cellular energy production and acts as a powerful antioxidant, helping protect cells from oxidative stress.

In PCOS, where inflammation, insulin resistance, and hormonal imbalance are common, supporting the mitochondria (your cell’s energy factories) can be a smart strategy – and that’s where CoQ10 may shine.

How CoQ10 May Support PCOS:

Emerging evidence suggests CoQ10 may help with:

• Improved insulin sensitivity and glucose metabolism
• Reduced total and free testosterone levels, which may help with acne, unwanted hair growth, and cycle regulation
• Improved cholesterol and triglyceride levels
• Enhanced ovulation and pregnancy rates, particularly in women undergoing fertility treatments

In fact, a 2022 meta-analysis of nine randomized controlled trials found that CoQ10 supplementation significantly improved metabolic markers in people with PCOS – making it a potentially valuable therapy alongside other nutrition and lifestyle strategies.

What About Fertility?

There’s growing interest in CoQ10’s role in egg quality and fertility. Some studies suggest it may support mitochondrial function in the ovaries, helping to improve ovulation and possibly even pregnancy outcomes – especially for women with PCOS or those over age 35.

While promising, more research is needed to determine ideal dosing and duration of supplementation for fertility-related benefits.

How to Use CoQ10

While generally considered safe and well-tolerated, CoQ10 may interact with certain medications – especially those for blood pressure or blood thinning. As always, check with your healthcare provider if you’re unsure.

If you are thinking about adding CoQ10 to your supplement routine, can you read more about it in my article: Does Coenzyme Q10 Have Benefits for PCOS? 

Collagen

Collagen has gained a lot of buzz in recent years – showing up in everything from coffee creamers to protein bars. But is it worth considering if you have PCOS?

Let’s take a closer look.

What Is Collagen?

Collagen is the most abundant protein in your body. It plays a key role in maintaining healthy skin, hair, nails, joints, and connective tissues. 

Your body naturally produces collagen, but production slows down with age – and can be impacted by stress, poor sleep, and nutrient deficiencies, all of which are common challenges for those with PCOS.

Most collagen supplements come in hydrolyzed form (also known as collagen peptides), which are broken down for better absorption.

How Might Collagen Support PCOS?

While research on collagen specifically for PCOS is limited, it may offer a few indirect benefits that are relevant to PCOS symptoms and overall health:

• Supports gut health: A healthy gut is essential for hormone balance and inflammation control. Some early studies suggest that collagen may help maintain gut lining integrity, which can be beneficial for those with digestive issues or chronic inflammation.
• Improves skin health: Many women with PCOS struggle with acne and skin changes. Collagen may help improve skin texture, elasticity, and hydration – although it’s not a direct treatment for acne.
• May aid blood sugar balance: Collagen is a source of protein, which can help slow the absorption of carbohydrates when added to meals or snacks. This may support more stable blood sugar levels throughout the day.
• Supports joint and muscle recovery: If you’re focusing on movement as part of your PCOS care routine, collagen can help reduce joint pain and support muscle recovery, especially in resistance training or high-impact activities. 
• Manage hair loss: Collagen provides essential amino acids that are vital to produce keratin, the protein that makes up hair. Stronger hair can be less prone to breakage and thinning. A randomized controlled trial published in 2012 found that 180 days of collagen supplementation improved hair growth in women with hair thinning.  

What the Research Says

Right now, the evidence for collagen in PCOS management is emerging, not established. 

There are no large-scale trials showing that collagen alone improves PCOS symptoms – but its potential to support gut health, inflammation, and skin may make it a useful addition to a holistic routine. 

As with any supplement, it’s most effective when paired with consistent nutrition and lifestyle strategies that target the root causes of PCOS.

How to Use Collagen

Collagen is not a complete protein – it’s low in certain essential amino acids – so it shouldn’t replace other high-quality protein sources in your diet. Think of it as a bonus, not a base. 

If you’re wondering whether it’s worth adding to your routine, check out my full breakdown here: Collagen and PCOS: What You Need to Know.

Ashwagandha

Ashwagandha (Withania somnifera) is an adaptogenic herb that helps the body adapt to physical and emotional stress. It’s been used for centuries in Ayurvedic medicine to support energy, mood, sleep, and hormone regulation.

For people with PCOS, stress often plays a big role in worsening symptoms like fatigue, irregular cycles, anxiety, and inflammation. 

Ashwagandha may offer a gentle way to support the nervous system and hormone health – especially when stress is a major driver.

Why Ashwagandha May Help PCOS Symptoms 

Living with PCOS can feel like you’re constantly “on,” whether it’s managing blood sugar swings, juggling hormone shifts, or navigating emotional ups and downs. 

Chronic stress doesn’t just impact your mood – it can increase cortisol levels, worsen inflammation, and throw your cycle further off track.

Ashwagandha is not a quick fix – but it may help indirectly by lowering stress and improving your body’s ability to regulate itself.

Potential benefits include:

• Reduce chronic inflammation
• Lower cortisol levels (which can support hormone regulation)
• Reduced feelings of stress, anxiety and overwhelm
• Improved sleep quality and mental clarity
• Possible support for thyroid function (which is especially helpful if you’re dealing with subclinical hypothyroidism – a common overlap with PCOS)

High cortisol from chronic stress can worsen insulin resistance, cravings, fatigue, and cycle irregularities. Calming the stress response may ripple out to support other PCOS symptoms.

What the Research Says

While direct research in PCOS is limited, its well-studied impact on stress and hormone-adjacent systems makes it a potential ally – especially if stress is a known trigger for your symptoms.

Studies show that it may:

• Lower stress-related cortisol: One double-blind randomized controlled trial found that ashwagandha supplementation significantly reduced cortisol levels and perceived stress in adults with chronic stress.
• Improve sleep and anxiety symptoms: A 2019 meta-analysis noted positive effects of ashwagandha on sleep onset, sleep quality, and mental well-being.
• Potentially balance hormones: Small pilot studies suggest it may modestly impact testosterone or LH/FSH levels in women, but this needs more investigation before any claims can be made.

Overall, the current research suggests that ashwagandha may be helpful as part of a broader PCOS management plan – especially if stress is a significant driver of your symptoms.

How to Use Ashwagandha

Ashwagandha is not appropriate for everyone. Avoid it if you’re pregnant, breastfeeding, or have autoimmune conditions unless advised by your provider. 

It may also interact with thyroid medications, sedatives, or antidepressants, so always check with your healthcare team.

If you want to learn more about Ashwagandha, check out my complete guide on Ashwagandha!

Chromium

Chromium is a trace mineral that plays a role in how your body processes carbohydrates and fats – and it’s often promoted for blood sugar support. 

Since insulin resistance is one of the most common root issues in PCOS, chromium has naturally sparked interest as a potential supplement.

But is it really helpful?

How Chromium May Help PCOS

Chromium helps improve the action of insulin, which is the hormone that moves glucose (sugar) from your blood into your cells. 

When insulin isn’t working properly – as it often doesn’t in PCOS – it can lead to blood sugar swings, cravings, and hormone imbalances.

Some early research has suggested that chromium picolinate (the form most often used in supplements) may help:

• Improve insulin sensitivity
• Lower fasting blood sugar and insulin levels
• Support more regular menstrual cycles
• Reduce some markers of inflammation

These benefits could indirectly support better hormone balance and fewer PCOS symptoms like acne, irregular cycles, or weight gain – especially in people with insulin-resistant PCOS.

Chromium is not a magic fix, but it may offer additional support if you’re already focusing on balanced meals and blood sugar management.

How to Use Chromium

• Chromium is generally considered safe at low to moderate doses, but high doses (above 1000 mcg/day) can cause side effects or interact with medications.
• If you’re already taking metformin, blood sugar medications, or insulin, speak to your provider before starting chromium to avoid any risks of low blood sugar.

Common Mistakes to Avoid with Supplements

When it comes to managing PCOS, supplements can be powerful allies – but only when used wisely. 

Here are four common mistakes to watch out for (and how to avoid them):

1. Taking Too Many at Once

It’s tempting to build a supplement stack based on everything you’ve read online, but more isn’t always better. 

In fact, layering too many supplements at once can backfire – leading to side effects, interactions, or just plain overwhelm. 

Start slow. Focus on one or two well-chosen supplements based on your symptoms and goals, then build from there if needed.

2. Ignoring Dosage

Just because a supplement is helpful doesn’t mean any amount will do. 

Many over-the-counter blends don’t include therapeutic doses – or they include mega doses that may not be safe long-term. 

Stick to evidence-based ranges and don’t assume that “more” means “more effective.” Dosing matters.

3. Assuming “Natural” Means Safe

It’s easy to believe that if something is natural, it must be harmless. But herbs and nutrients can still affect your body in big ways – especially when mixed with other medications or health conditions. 

Always check in with a trusted provider (especially if you’re taking fertility meds, thyroid meds, or blood sugar-lowering drugs) before adding a new supplement to your routine.

4. Using Supplements in Place of Lifestyle Foundations

I can not stress this enough that supplements can support hormone health, but they can’t do all the heavy lifting. 

The biggest wins often come from building solid foundations first: balanced blood sugar, regular meals, movement, sleep, and stress management. 

Think of supplements as the cherry on top – not the whole sundae.

What Supplements Can’t Do

Dietary supplements can be a valuable piece of your PCOS toolkit – but they’re not magic pills.

They can support better blood sugar control, hormone balance, ovulation, and even energy levels when used alongside a strong foundation of nutrition and lifestyle. But on their own? The impact is often limited.

Here’s what supplements can’t do:

• They can’t replace nourishing meals or a balanced plate. Supplements help fill in the gaps, but they’re not a substitute for regular, nutrient-rich meals that stabilize blood sugar and support hormone health.
• They can’t undo chronic stress, lack of sleep, or skipping meals. Stress hormones and poor sleep can have just as big of an impact on PCOS symptoms as insulin resistance – and no capsule can fix that.
• They can’t deliver overnight results. Most supplements take at least 8-12 weeks of consistent use to see full benefits, especially for cycle regularity and fertility.
• They can’t offer a one-size-fits-all solution. Just like no two PCOS journeys are the same, no supplement plan should be either. What works for your favorite influencer may not be what your body truly needs.

Supplements are supportive, not foundational. When you focus first on sleep, stress, nutrition, movement, and mindset – that’s when supplements have the most power to amplify your progress.

Final Thoughts: A Personalized Approach to PCOS Supplements

When it comes to PCOS, the right supplements can absolutely make a difference – but they work best when they’re part of a bigger picture that includes balanced meals, restful sleep, manageable stress, and movement you enjoy.

There’s no one-size-fits-all supplement routine, and the goal isn’t to try everything at once. It’s about choosing what supports your body, based on your symptoms, goals, and current lifestyle.

If you’re feeling overwhelmed, that’s completely normal. The supplement aisle (and the internet) can be a lot. But you don’t have to figure it out alone.

Want help putting all the pieces together?

My ebook, The PCOS Plate: Your Guide to Thriving with Polycystic Ovary Syndrome, breaks everything down – from nutrition to supplements to mindset – in a way that feels doable, not daunting.

You’ll walk away with a clear, customized framework to support your hormones naturally – no more guesswork or second-guessing.

Madison Lawrie, B.Sc., RD, CDE

Owner and Registered Dietitian at The PCOS Plate | Website | + postsBio ⮌

Madison is a Registered Dietitian and Certified Diabetes Educator passionate about helping women with PCOS navigate nutrition with confidence. Through science-backed nutrition and lifestyle strategies, she shares practical, sustainable approaches to support hormone health, blood sugar balance, and a healthier relationship with food — one meal at a time.

This author does not have any more posts