Magnesium: The Most Important Mineral You're Probably Deficient In

It’s involved in over 300 enzymatic reactions in your body, yet most people are deficient. Meet magnesium—the master mineral.

Why Magnesium Matters

Magnesium is required for:

  • Energy production (ATP synthesis)
  • Muscle and nerve function
  • Blood sugar regulation
  • Blood pressure management
  • Protein synthesis
  • DNA and RNA synthesis
  • Bone development

“Magnesium deficiency is the most under-diagnosed health problem in modern medicine.”

Signs of Deficiency

Common Symptoms

  • Muscle cramps and twitches
  • Poor sleep or insomnia
  • Anxiety and restlessness
  • Headaches and migraines
  • Fatigue and weakness
  • Irregular heartbeat
  • High blood pressure

Who’s at Risk?

  • People eating processed foods
  • Heavy exercisers (sweating depletes magnesium)
  • Those under chronic stress
  • Alcohol consumers
  • People taking certain medications
  • Older adults
Blood tests for magnesium are often misleading—only 1% of magnesium is in blood. Deficiency can exist even with "normal" blood levels.

Benefits of Optimal Magnesium

1. Better Sleep

Magnesium activates the parasympathetic nervous system and regulates melatonin.

2. Reduced Stress & Anxiety

It modulates the HPA axis (stress response) and GABA receptors.

3. Muscle Recovery

Essential for muscle relaxation and reducing cramps.

4. Heart Health

Supports healthy blood pressure and heart rhythm.

5. Blood Sugar Control

Improves insulin sensitivity.

6. Migraine Prevention

Studies show 400-500mg can reduce migraine frequency.

Types of Magnesium Supplements

Not all magnesium is created equal:

Best Absorbed Forms

Form Best For
Magnesium Glycinate Sleep, anxiety, general use
Magnesium L-Threonate Brain health, cognitive function
Magnesium Taurate Heart health
Magnesium Malate Energy, muscle pain
Magnesium Citrate Constipation, general use

Avoid

  • Magnesium Oxide: Only 4% absorption rate
  • Cheap “magnesium” supplements without specified form
Magnesium glycinate is the most versatile and well-tolerated form. Start there if unsure.

How Much Do You Need?

  • Men: 400-420 mg
  • Women: 310-320 mg

Therapeutic Doses

  • For sleep: 200-400 mg before bed
  • For migraines: 400-500 mg daily
  • For stress: 200-400 mg daily

Upper Limit from Supplements

  • 350 mg from supplements (food sources don’t count toward this)
  • Higher doses may cause digestive upset

Food Sources of Magnesium

High-Magnesium Foods

  • 🥬 Dark leafy greens (spinach, swiss chard)
  • 🥜 Nuts (almonds, cashews)
  • 🫘 Seeds (pumpkin, sunflower)
  • 🫘 Legumes (black beans, edamame)
  • 🍫 Dark chocolate (70%+ cacao)
  • 🥑 Avocado
  • 🐟 Fatty fish
  • 🍌 Bananas
Soil depletion has reduced magnesium content in foods by up to 50% over the past century. Supplementation may be necessary even with a healthy diet.

Optimizing Absorption

Enhancers

  • Vitamin B6 (helps magnesium enter cells)
  • Vitamin D (works synergistically)
  • Taking with food

Inhibitors

  • High-dose calcium (competes for absorption)
  • Phytic acid (in grains/legumes)
  • Excessive caffeine
  • Alcohol

Timing Your Magnesium

For Sleep

Take 30-60 minutes before bed for best results.

For Exercise

Take post-workout for recovery.

For General Health

Split doses throughout the day, or take with dinner.

Starting a Magnesium Protocol

Week 1-2

  • Start with 200 mg magnesium glycinate at bedtime
  • Monitor sleep quality and any digestive effects

Week 3-4

  • Increase to 300-400 mg if tolerated
  • Note changes in energy, mood, and muscle tension

Ongoing

  • Adjust dose based on symptoms
  • Consider adding magnesium-rich foods

Magnesium is safe, affordable, and profoundly effective. If you’re stressed, sleeping poorly, or experiencing muscle issues, this might be the simplest fix available. Start with 200 mg tonight. 💊