Magnesium: Why It Matters and How to Get Enough Through Food

Magnesium is one of the most important minerals for women’s health, yet many women fall short of their daily needs. Stress, poor sleep, heavy periods, perimenopause, digestive issues and certain medications can all increase magnesium requirements, making it even more important to focus on good dietary intake.

Because magnesium is involved in over 300 biochemical reactions, low levels can affect everything from nervous system regulation to muscle relaxation, hormone balance and energy production. If you experience cramps, tension, anxiety, poor sleep, migraines or low energy, magnesium may part of the problem.

Why Magnesium Matters for Women’s Health

1. Stress and the Nervous System

Magnesium helps regulate the HPA axis, calm the nervous system and reduce feelings of tension and overwhelm. During perimenopause, fluctuating hormones can make your stress response more reactive, increasing magnesium needs even further.

2. Sleep Support

Magnesium plays a role in muscle relaxation and melatonin synthesis. Many women find that improving magnesium intake supports deeper, more restorative sleep.

3. Muscle and Period Cramping

Magnesium helps relax smooth muscle, which can reduce menstrual cramps, tension headaches, restless legs and general muscular tightness.

4. Blood Sugar Regulation

Stable blood sugar is essential for hormone balance, energy and mood. Magnesium helps improve insulin sensitivity and supports steadier energy throughout the day.

5. Hormone and Mood Support

Magnesium interacts with oestrogen and progesterone pathways, supports neurotransmitter balance and may help soften mood changes associated with PMS and perimenopause.

How Much Magnesium Do We Need?

Most adult women need about 320 mg of magnesium per day, and this increases during perimenopause and periods of high stress. Many women do not reach this goal through food alone, especially if their diet is low in wholefoods, fibre, nuts, seeds and leafy greens.

That’s why focusing on magnesium-rich foods is such an effective first step.

Magnesium-Rich Foods to Add to Your Week

Here are the most reliable food sources of magnesium:

Nuts and Seeds

pumpkin seeds

almonds

cashews

sunflower seeds

flax seeds

tahini

peanut butter

Green Leafy Vegetables

spinach

kale

silverbeet

broccoli

Legumes & Wholegrains

black beans

chickpeas

lentils

quinoa

rolled oats

brown rice

Other Great Sources

avocado

bananas

cacao/cocoa

tofu (if tolerated)

potatoes with skin

seafood, especially salmon and mackerel

These foods are simple to incorporate into everyday meals without much extra prep.

Easy Ways to Boost Magnesium Through Food

Here are some simple, practical meal ideas that require minimal effort:

Breakfast Ideas

• Oats with berries, a spoon of nut butter and a sprinkle of pumpkin seeds

• Chia pudding topped with banana and cacao nibs

• Smoothie with spinach, almond butter, blueberries and chia seeds

• Avocado on wholegrain toast with hemp seeds

Lunch Ideas

• Quinoa salad with chickpeas, spinach, avocado and lemon-tahini dressing

• Lentil soup with wholegrain toast & avocado

• Leftover roasted veg bowl with brown rice, hummus and pistachios

• Tuna and white bean salad with olive oil, herbs and greens

Dinner Ideas

• Salmon with roasted potatoes and steamed greens

• Stir-fry with tofu, cashews, broccoli and brown rice

• Black bean tacos with avocado and salsa

• Baked sweet potato topped with lentils, spinach and tahini

Snacks

• handful of nuts

• apple with peanut butter

• cacao-rich dark chocolate

• yoghurt with seeds and berries

Small, consistent additions make a noticeable difference over time.

What About Supplementing?

Food should always be the foundation, but some women benefit from magnesium supplementation, especially during periods of high stress, poor sleep, intense exercise, heavy bleeding, or perimenopause. There is no single “best” magnesium supplement. Instead, the type matters depending on what you are trying to support.

Common Forms of Magnesium and Their Typical Uses

Magnesium Glycinate

• gentle on digestion

• helpful for anxiety, tension and sleep

• commonly used for perimenopause-related nervous system support

Magnesium Citrate

• supports bowel function

• can help with constipation

• more energising for some people

Magnesium Malate

• supports energy production

• often used for muscle tension and fatigue

Magnesium Threonate

• crosses the blood–brain barrier

• sometimes used for cognitive function, mood and stress

Magnesium Chloride / Magnesium Oil

• used topically for muscle tension

• useful for those who have difficulty tolerating oral forms

The right form depends on your symptoms, health history, medications and digestive tolerance. This is why personalised guidance is so important.

When to Seek Support

You might benefit from a naturopathic assessment if you experience:

• ongoing stress or anxiety

• sleep difficulties

• menstrual cramps

• perimenopause symptoms

• migraines

• restless legs

• ongoing muscle tension

• low energy

A personalised plan ensures you are getting the right amount and the right type of magnesium for your individual needs.

Looking for Personalised Guidance?

If you would like help supporting your stress, sleep, hormones or energy with nutrition and herbal medicine, I offer online Telehealth consultations Australia-wide from Albany, WA.

You can book a 1:1 consultation or read more about my approach here.