If you have been searching for the best supplements for menopause or perimenopause, chances are you have come across magnesium, and for good reason.
As a dietitian who works with women navigating perimenopause and menopause everyday, magnesium is one of the nutrients I talk about most in my practice.
It is involved in over 300 enzymatic reactions in the body, plays a central role in bone metabolism, sleep regulation, mood, and blood sugar balance, and yet most women going through perimenopause and menopause are not getting nearly enough of it.
Samantha Thompson, Registered Dietitian and Integrative & Functional Nutrition Certified Practitioner
Why You Need More Magnesium during Menopause
Declining estrogen affects how efficiently your body absorbs and retains magnesium.
Research shows that estrogen regulates magnesium absorption and kidney reabsorption, meaning that as estrogen drops during menopause, magnesium losses through the kidneys can increase (de Baaij et al., Physiological Reviews, 2015).
Research shows that approximately 30 to 40 percent of postmenopausal women have low magnesium levels, even when consuming what appears to be a reasonable diet (Vormann, Nutrients, 2020).
It becomes clear that magnesium deficiency during this life stage is far more common than most people realize.
Key Benefits of Magnesium During Menopause
- Supports bone density and reduces the risk of osteoporosis
- Improves insulin sensitivity and blood sugar regulation
- Supports cardiovascular health by helping regulate blood pressure
- May reduce the frequency and severity of migraines
- Reduces menstrual cramps and associated PMS symptoms
- May improve sleep quality and duration
- Associated with reductions in depression and anxiety symptoms
- Acts as a cofactor for vitamin D activation, supporting healthy serum vitamin D levels
Magnesium for Insulin Sensitivity:
During perimenopause, declining estrogen causes the body to shift where it stores fat. Women who previously stored fat in their hips and thighs tend to accumulate more of it in the abdomen instead.
This is why many women notice their body shape changing during this transition even without significant weight gain.
This matters for insulin resistance because abdominal fat, particularly the deeper visceral fat that surrounds the organs, is metabolically active in a way that subcutaneous fat is not.
Visceral fat releases inflammatory compounds and free fatty acids that directly interfere with insulin signaling, making it harder for cells to respond to insulin effectively.
The more visceral fat present, the greater the insulin resistance tends to be. This is a significant reason why the risk of type 2 diabetes increases after menopause.
Magnesium is a cofactor for the enzymes involved in glucose metabolism and helps activate insulin receptors at the cellular level. A study of 136 postmenopausal women found that low red blood cell magnesium was significantly correlated with higher HOMA scores, a validated marker of insulin resistance, independent of BMI (Mooren et al., Diabetes & Metabolism, 2004).
Additionally, a 2017 systematic review in Nutrition examining the effects of magnesium supplementation on insulin resistance in humans found a meaningful improvement across multiple trials (Morais et al., 2017).
For women already experiencing signs of metabolic shifting in perimenopause, such as blood sugar fluctuations, energy crashes, or difficulty losing weight, magnesium is a tool that should be considered.
Magnesium for Bone Health
This is where the evidence is most compelling. Osteoporosis is one of the most significant long-term health concerns associated with menopause, and while calcium and vitamin D tend to get all the attention, magnesium is equally critical.
An RCT in Biological Trace Element Research found that 30 days of magnesium citrate supplementation in postmenopausal women with osteoporosis significantly decreased bone breakdown markers and increased osteocalcin, a marker of bone formation (Aydin et al., 2010).
A 2021 meta-analysis of 12 studies confirmed that higher magnesium intake is associated with greater hip and femoral neck bone density in older adults (Van Dronkelaar et al., 2021), a finding echoed in a cohort of over 73,000 postmenopausal women from the Women’s Health Initiative (Orchard et al., AJCN, 2014).
Magnesium acts as a cofactor for the enzymes involved in converting vitamin D into its active form. Research suggests that without adequate magnesium, your body may be less able to fully utilize the vitamin D you take in, whether from sun, food, or supplements.
A double-blind, placebo-controlled RCT published in Nutrients (2020) studied 52 postmenopausal women, over 80 percent of whom had baseline vitamin D deficiency. After eight weeks of supplementation with 500 mg per day of magnesium, the intervention group showed significantly higher vitamin D levels compared to the placebo group (Vázquez-Lorente et al., 2020).
Bone loss accelerates most rapidly in the first few years after menopause, which is exactly why prioritizing magnesium earlier in perimenopause, not after a diagnosis of osteopenia, is the smarter strategy.
Magnesium for Menstrual Pain
Many women in perimenopause experience a return or worsening of menstrual pain.
Magnesium addresses dysmenorrhea through two well-established mechanisms: it relaxes the smooth muscle of the uterus, reducing the intensity of contractions, and it suppresses the production of prostaglandins, the inflammatory compounds most responsible for menstrual cramping (Parazzini et al., Gynecological Endocrinology, 2017).
Magnesium for Mood and Anxiety
Depression and anxiety affect a significant proportion of women during perimenopause, and this is not simply a function of life circumstances.
Fluctuating estrogen directly impacts serotonin pathways and the HPA axis, the system that regulates your body’s response to stress. Magnesium helps regulate this system and supports the production of calming neurotransmitters including serotonin and GABA.
A 2023 review of clinical studies found that magnesium supplementation was associated with meaningful reductions in depression. (Moabedi et al., Frontiers in Psychiatry, 2023).
Magnesium may Improve Sleep Quality
Sleep disruption is one of the most common and most debilitating symptoms of perimenopause.
Declining progesterone, night sweats, and anxiety all contribute to fragmented, non-restorative sleep. Magnesium supports sleep through its role as a GABA receptor agonist, enhancing the activity of this inhibitory neurotransmitter to calm the nervous system and facilitate rest.
A 2024 RCT published in Sleep Medicine: X found that magnesium-L-threonate supplementation significantly improved sleep quality and daytime functioning in adults with self-reported sleep problems (Hausenblas et al., 2024).
While the research specific to menopausal sleep is still growing, the mechanistic and clinical evidence supports including magnesium as a priority in perimenopause nutrition for women struggling with sleep.
Magnesium may Protect Your Heart
Cardiovascular risk rises after menopause as estrogen’s protective effects on the heart and blood vessels decline.
Magnesium supports blood pressure regulation through nitric oxide-mediated vasodilation and healthy heart rhythm maintenance (Zhang et al., Hypertension, 2016).
Two large meta-analyses found that magnesium supplementation produced modest but clinically meaningful reductions in both systolic and diastolic blood pressure, particularly in women with existing hypertension or low magnesium levels (Farrokhian et al., 2024; Zhang et al., Hypertension, 2025).
Magnesium is not a replacement for antihypertensive medication, but can help with cardiovascular support during a vulnerable window.
Magnesium is Probably Effective for Migraine Prevention
Migraine prevalence increases significantly during the menopause transition, and estrogen is the central driver. Fluctuating estrogen levels, particularly the rapid drops that characterize perimenopause, are well-established migraine triggers. This is often referred to as the estrogen withdrawal effect (MacGregor, 2018).
Research suggests estrogen can stimulate mast cells to release histamine (Bonds & Midoro-Horiuti, 2013; Muñoz-Cruz et al., 2015), and animal studies indicate it may also reduce activity of the enzyme responsible for breaking histamine down. During perimenopause, as estrogen fluctuates erratically, this may contribute to histamine accumulation and heightened headache sensitivity, though direct human evidence for this mechanism is still emerging.
Magnesium works against migraines through several well-established pathways. It acts as an NMDA receptor antagonist, blocking the excitatory effects of glutamate, which plays a central role in migraine pathophysiology. It also reduces neuroinflammation and has been shown to inhibit substance P, a pain-promoting neuropeptide involved in migraine signaling (Maier et al., Nutrients, 2020).
Magnesium is recognized by the American Academy of Neurology and American Headache Society as probably effective for migraine prevention.
Food First, Supplements Second
Magnesium-rich foods include pumpkin seeds, almonds, dark chocolate, black beans, edamame, avocado, and leafy greens like spinach and Swiss chard.
That said, given how common deficiency is during perimenopause and menopause, food alone often is not enough to meaningfully shift your levels, which is why supplementation tends to be a practical and evidence-informed addition.
Magnesium Supplements
Not all forms are created equal, so which form of magnesium should you take?
- Magnesium glycinate is well-absorbed and gentle on digestion. It is my first recommendation for sleep, anxiety, period pain, and mood support.
- Magnesium L-threonate has shown promise in trials for cognitive function and sleep, and animal studies suggest it may have enhanced ability to reach the brain compared to other forms. However, human research on magnesium L-threonate is still lacking.
- Magnesium citrate has good bioavailability and also supports bowel regularity, which can be useful for women experiencing constipation during menopause.
- Magnesium oxide is inexpensive and commonly found in supplements, but has lower bioavailability compared to the forms above and is not my first recommendation for most women.
A general therapeutic dose for menopausal women ranges from 300 to 400 mg per day, though some research has used higher amounts. Always check with your healthcare provider or a registered dietitian before starting supplementation, particularly if you have kidney concerns or take medications.
The Bottom Line
If you are navigating perimenopause or menopause and looking for the best supplements to support your health, magnesium deserves a top spot on your list.
Not because it is trendy, but because the evidence supports its role across an impressive range of concerns: bone protection, vitamin D utilization, cardiovascular health, insulin resistance, migraine prevention, period pain, sleep quality, and mood regulation.
Menopause nutrition is not about taking every supplement on the market. It is about understanding what your body actually needs during this transition and filling the gaps strategically.
Have questions about diet and supplements for perimenopause or menopause?
I work with women one-on-one in my virtual private practice, with a focus on hormonal and digestive wellness. You can book a consultation here.
This post is for educational purposes and does not constitute personalized medical or nutrition advice. Please consult a registered dietitian or healthcare provider for guidance tailored to your individual needs.
Key References
- Aydin H et al. Short-term oral magnesium supplementation suppresses bone turnover in postmenopausal osteoporotic women. Biological Trace Element Research. 2010.
- Bonds RS, Midoro-Horiuti T. Estrogen effects in allergy and asthma. Current Allergy and Asthma Reports. 2013.
- de Baaij JHF et al. Magnesium in Man: Implications for Health and Disease. Physiological Reviews. 2015.
- Facchinetti F et al. Magnesium prophylaxis of menstrual migraine. Headache. 1991.
- Farrokhian A et al. Impact of magnesium supplementation on blood pressure: an umbrella meta-analysis of RCTs. Current Medical Research and Opinion. 2024.
- Hausenblas HA et al. Magnesium-L-threonate improves sleep quality and daytime functioning. Sleep Medicine: X. 2024.
- Maier JA et al. Headaches and magnesium: mechanisms, bioavailability, therapeutic efficacy. Nutrients. 2020.
- MacGregor EA. Migraine, menopause and hormone replacement therapy. Therapeutic Advances in Neurological Disorders. 2018.
- Moabedi M, Aliakbari M, Erfanian S, Milajerdi A. Magnesium supplementation beneficially affects depression in adults with depressive disorder: a systematic review and meta-analysis of randomized clinical trials. Frontiers in Psychiatry. 2023. PMID: 38213402.
- Morais JBS et al. Effect of magnesium supplementation on insulin resistance in humans: a systematic review. Nutrition. 2017.
- Muñoz-Cruz S et al. Gender-related effects of sex steroids on histamine release. Journal of Immunology Research. 2015.
- NIH Office of Dietary Supplements. Magnesium Fact Sheet for Health Professionals. 2024.
- Orchard TS et al. Magnesium intake, bone mineral density, and fractures: results from the Women’s Health Initiative. American Journal of Clinical Nutrition. 2014.
- Park H et al. A pilot phase II trial of magnesium supplements to reduce menopausal hot flashes. Supportive Care in Cancer. 2011.
- Park H et al. North Central Cancer Treatment Group N10C2: a double-blind placebo-controlled study of magnesium supplements to reduce menopausal hot flashes. Menopause. 2015.
- Parazzini F et al. Magnesium in the gynecological practice: a literature review. Gynecological Endocrinology. 2017.
- Slutsky I et al. Enhancement of learning and memory by elevating brain magnesium. Neuron. 2010.
- Van Dronkelaar C et al. Impact of magnesium on bone health in older adults: a systematic review and meta-analysis. Bone. 2021.
- Vázquez-Lorente H et al. Response of vitamin D after magnesium intervention in a postmenopausal population. Nutrients. 2020.
- Zhang X et al. Effects of magnesium supplementation on blood pressure: a meta-analysis of randomized double-blind placebo-controlled trials. Hypertension. 2016 (updated 2025 analysis).
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