Magnesium supports healthy brain aging in both men and women — but new research shows the benefits may be especially strong for post‑menopausal women. In a large UK Biobank study of more than 6,000 adults, higher magnesium intake was linked to larger brain volume and fewer white matter lesions, two key markers of slower brain aging.

As women move through menopause, hormonal changes can increase inflammation, alter blood flow to the brain, and accelerate age‑related structural changes. Magnesium appears to help buffer these shifts.

What the Study Found

Adults with higher magnesium intake had:

• Larger total brain volume
• Larger hippocampal volume (important for memory)
• Fewer white matter lesions, which are linked to cognitive decline

Women — especially post‑menopausal women — showed the strongest protection.

Why Magnesium Matters More After Menopause

Estrogen plays a major role in:

• inflammation control
• vascular health
• neuronal signaling

As estrogen declines, the brain becomes more vulnerable. Magnesium helps compensate by supporting:

• NMDA receptor regulation
• mitochondrial energy production
• blood vessel stability
• reduced oxidative stress

Food‑First Magnesium Sources

Magnesium is widely available in everyday foods. Good sources include:

• Leafy greens (spinach, Swiss chard)
• Nuts and seeds (almonds, pumpkin seeds)
• Legumes (black beans, lentils, chickpeas)
• Whole grains (brown rice, oats, quinoa)
• Avocados
• Dark chocolate (70%+)

What This Means for Women Over 60

Magnesium supports brain health for everyone, but women after menopause may gain additional protection. Increasing magnesium intake through food is a simple, safe, and effective way to support long‑term cognitive health.

For women over 60, maintaining steady magnesium intake may help:

• preserve brain volume
• reduce white matter damage
• support memory and processing speed
• promote healthier aging overall

Key Takeaways

• Higher magnesium intake is linked to larger brain volume and fewer white matter lesions.
• Benefits were seen in both men and women, but were strongest in post‑menopausal women.
• Magnesium supports inflammation control, neuronal stability, and vascular health.
• Food‑first magnesium sources include leafy greens, nuts, seeds, legumes, and whole grains.

Reference

The study is available here: Dietary magnesium intake is related to larger brain volumes and lower white matter lesions with notable sex differences