---

Polycystic Ovary Syndrome (PCOS) has been linked to a deficiency in the mineral magnesium—a critical player in over 300 biochemical processes that sustain vitality and wellbeing. Yet, despite its importance, many people unknowingly do not get enough magnesium, a concern that is especially relevant to those with PCOS.

What Is Magnesium?

Think of the mineral magnesium as your body’s spark plug—it’s needed to ignite hundreds of essential reactions that keep your cells energised, your muscles relaxed, your heart beating steadily, and your hormones balanced. Without enough of it, these systems begin to sputter and stall.

Why Magnesium Is Vital

Magnesium supports:

• Muscle relaxation and tension reduction

• Energy production at the cellular level

• Healthy heart rhythm and blood pressure regulation

• Hormone regulation, including sex and thyroid hormones

• Mood balance by counteracting stress-related magnesium loss​

Given these roles, it’s no surprise that magnesium deficiency can worsen many PCOS symptoms.

The Magnesium-Insulin Connection: My Theory with Increasing Evidence

PCOS cysters often face insulin resistance, a key driver of many PCOS symptoms. Consuming excessive sugar strains the body’s ability to regulate blood glucose levels. Magnesium plays a crucial role in this process, as it facilitates the transport of glucose into cells and enhances insulin receptor activity.

Here’s the vicious cycle: High sugar use can deplete magnesium, creating a feedback loop of deficiency and worsening insulin resistance. A deficiency in magnesium leads to impaired insulin function, resulting in higher blood sugar levels, which in turn deplete even more magnesium. Round and round it goes.

Breaking this cycle starts with restoring adequate magnesium levels.

Are You Low in Magnesium? Watch for These Signs

Symptoms linked with magnesium deficiency often overlap with PCOS, including:

• Muscle tension, cramps, and restless legs

• Stress, anxiety, irritability, mood swings

• Fatigue and low energy

• Irregular heartbeat or blood pressure issues

• Headaches or migraines

• Fibromyalgia

• Insomnia

• Constipation

If several of these symptoms sound familiar, a magnesium deficiency could be contributing to your condition.

Why Are Many People Deficient? The Modern Magnesium Crisis

Modern Life and Magnesium Depletion

Stress, chronic illness, the use of medications like proton pump inhibitors, and poor nutrition—everyday realities in modern lifestyles—increase magnesium demand or reduce absorption. This compounds the risk for deficiency in PCOS, where cysters often already have a greater metabolic and inflammatory burden.

Modern Farming Practices

Modern farming practices matter too. One study put it this way: “Because of chronic diseases, medications, decreases in food crop magnesium contents, and the availability of refined and processed foods, the vast majority of people in modern societies are at risk for magnesium deficiency.”

Our soils are depleted. Our foods are processed. Our magnesium intake has plummeted.

Modern-Day Stress: The Magnesium Thief

When under stress, the body’s demand for magnesium increases. Stress hormones are released in greater amounts when magnesium levels are low. When you are stressed, your body excretes more magnesium, at a time when you need it the most.

This may lead you to feel uptight, anxious and even more stressed, thus perpetuating the cycle of ongoing stress and magnesium depletion. Magnesium and taurine, combined with specific B vitamins and glutamine, may mitigate the adverse effects of stress and break the stress cycle.

Specific PCOS Concerns: Why Magnesium Matters Even More for You

The Heart Loves Magnesium

Folks with PCOS are at increased risk of heart disease. Magnesium can be of great benefit in supporting cardiovascular health. Low magnesium levels can place stress on the cardiovascular system, leading to hypertension and arrhythmias. Magnesium and taurine supplementation have been shown to decrease blood pressure, supporting healthy heart function.

This is not just about feeling better today—this is about protecting your heart for the long term.

Cramps and Restless Legs Syndrome (RLS)

Muscular cramps and tension are commonly associated with magnesium deficiency. Magnesium has long been recognised for its critical therapeutic applications in enhancing muscle relaxation and relieving spasms.

I have witnessed excellent results by combining Chiropractic care with magnesium supplementation in the reduction and often complete resolution of restless legs syndrome. If you’ve been experiencing RLS, this combination may be the answer you’ve been searching for.

What Does Research Say About Magnesium in PCOS?

Studies comparing serum magnesium levels between individuals with PCOS and controls have yielded mixed results; however, several studies indicate that people with PCOS—especially those with insulin resistance—are more likely to have lower magnesium levels below the recommended ranges. Low magnesium correlates with worsened insulin resistance, higher fasting blood glucose, and systemic inflammation.

Randomised controlled trials supplementing magnesium with other nutrients such as vitamin E, zinc, calcium, and vitamin D improved insulin sensitivity and reduced inflammation markers like C-reactive protein, which are often higher in PCOS.

The evidence suggests a synergistic effect where magnesium is part of a broader nutritional strategy that supports metabolic and hormonal balance in PCOS.

 

How to Boost Your Magnesium Levels Safely

Now that you understand why magnesium matters and whether you might be deficient, let’s talk about how to fix it.

• Eat magnesium-rich foods: Include leafy greens, nuts (such as almonds, Brazil nuts, and cashews), seeds (like pumpkin seeds and sunflower seeds), beans, low-glycaemic-load and gluten-free whole grains, and fruits like bananas regularly.​ Food should always be your foundation.

• Mind your medications: Proton pump inhibitors and certain diuretics can impair magnesium absorption. If this applies to you, discuss it with your healthcare provider.​

• Consider supplements: Under professional guidance, supplements can correct a deficiency. Magnesium diglycinate is a specific form of magnesium that has a higher absorption rate and fewer side effects. Dosage and duration are determined based on individual assessment.

Key Takeaway: Magnesium Is a Cornerstone Mineral in PCOS Care

While magnesium alone is not a silver bullet, it is a foundational nutrient that supports energy, hormone balance, insulin sensitivity, and heart health—all of which are vital for optimal PCOS management. A targeted approach to magnesium, combined with lifestyle changes and other nutritional interventions, can help break the cycle of insulin resistance and inflammation commonly associated with PCOS.

From PCOS to perfect health, with love,

Dr. Rebecca Harwin
The PCOS Expert
Chiropractor & Bestselling Author of
Conquer Your PCOS Naturally
www.ConquerYourPCOSNaturally.com

P.S. For more success strategies and scientific secrets, head to our Facebook page and hit ‘like’. There is so much more I have to share with you to balance your PCOS hormones!

 

---

Love to pin? Share the love…