Magnesium: Why Every Woman Over 40 Needs More

Magnesium: Why Every Woman Over 40 Needs More

7 min read

Magnesium is involved in over 300 enzymatic reactions — and most women are quietly deficient. Here's what it does, why deficiency is so common, and the best food sources.

Magnesium is one of the most important minerals in the human body, involved in over 300 enzymatic reactions including energy production, protein synthesis, muscle and nerve function, blood glucose control, and blood pressure regulation. It is also one of the most common nutritional deficiencies in women over 40.

The reasons for widespread deficiency are structural: modern agricultural practices have depleted magnesium from soil, meaning even a diet rich in vegetables provides less than it once did. Stress depletes magnesium rapidly — the more stressed you are, the more you excrete. Alcohol, caffeine, and certain medications (including common diuretics and proton pump inhibitors) further reduce absorption.

The symptoms of deficiency are easy to miss because they are so common: poor sleep, muscle cramps, anxiety, fatigue, headaches, and constipation. Many women attribute these to aging or stress without realizing that a mineral deficiency may be a significant contributing factor.

The best food sources of magnesium are dark leafy greens (particularly spinach and Swiss chard), pumpkin seeds, dark chocolate (70% or higher), legumes, whole grains, avocado, and fatty fish. A handful of pumpkin seeds contains roughly 150mg — about a third of the daily recommended intake.

If you are considering supplementation, magnesium glycinate is the form best absorbed and least likely to cause digestive upset. Magnesium threonate has the strongest evidence for cognitive benefits. Take it in the evening — it has a mild calming effect that supports sleep quality.

Hormones Sleep Stress
Radojka Barycki

Radojka Barycki

Licensed Zumba Instructor · Food Safety Executive · Founder, Fabulous At Any Age

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