Key Takeaways
Magnesium is essential, but many people don’t get enough from food.
Deficiency signs go beyond just leg cramps.
Supplements aren’t risk-free—especially with kidney issues or certain medications.
Choosing the right type, dose, and timing matters.
Diet should always come first.
1. How to Know If You Really Need Magnesium
Magnesium supports hundreds of functions: muscle contraction and relaxation, steady heart rhythm, nerve regulation, and energy production. Since your body can’t produce it, you must get it from food or supplements.
Common Signs of Deficiency
Muscle cramps and twitches: Night cramps or persistent eyelid twitching may indicate low magnesium. It acts like a “brake” for your nervous system—without it, nerves can fire too easily.
Chronic stress, anxiety, or insomnia: Stress increases magnesium loss through urine. This can worsen irritability, anxiety, and sleep problems.
Age over 60 or certain medications: Aging reduces absorption. Medications like diuretics, acid blockers (e.g., omeprazole), and poorly controlled diabetes can also deplete magnesium.
2. Food First: Best Sources of Magnesium
Before supplements, improve your diet. Great sources include:
Leafy greens (spinach, Swiss chard)
Nuts and seeds (almonds, pumpkin, sunflower)
