Magnesium Deficiency: Signs, Causes, and How to Fix It
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Why Magnesium Deficiency Is Epidemic
Modern soil depletion has reduced magnesium content in food by 20โ30% since 1950. Refined food processing removes 80โ96% of magnesium. Average US intake: 228 mg/day (men) and 193 mg/day (women) โ well below the RDA of 400โ420 mg (men) and 310โ320 mg (women).
Subtle Signs of Low Magnesium
Muscle cramps and twitches (especially eyelid twitching). Poor sleep quality or insomnia. Chronic fatigue without obvious cause. Anxiety, nervousness, low stress tolerance. Restless legs syndrome. Constipation. Irregular heartbeat (palpitations).
Best Food Sources of Magnesium
Pumpkin seeds: 150 mg/28g (37% DV). Chia seeds: 95 mg/28g. Dark chocolate: 64 mg/28g. Hemp seeds: 210 mg/30g. Almonds: 76 mg/28g. Spinach: 79 mg/100g cooked. Black beans: 70 mg/100g. Brown rice: 43 mg/100g. Avocado: 29 mg/100g.
Magnesium Forms for Supplementing
Magnesium glycinate: chelated, high bioavailability, best for sleep and anxiety, gentle on digestion. Magnesium malate: good for energy, muscle function. Magnesium citrate: decent absorption, mild laxative effect โ useful for constipation. Magnesium oxide: cheap, only 4% absorbed โ avoid. Start with 100โ200 mg and increase to 300โ400 mg. Take at night (promotes sleep).
Magnesium and Sleep
Magnesium activates the parasympathetic nervous system (rest-and-digest). Regulates melatonin production. Binds to GABA receptors โ same receptors targeted by benzodiazepines. Clinical trials show magnesium glycinate improves sleep onset, duration, and efficiency in deficient adults.
Who Needs to Supplement
Alcohol-dependent individuals (alcohol depletes magnesium). Type 2 diabetics (low magnesium is common and worsens insulin resistance). People taking diuretics or proton pump inhibitors. Athletes with high sweat output. Older adults (reduced absorption with age).
The Real Reason People Search For Magnesium Deficiency: Signs, Causes, and How to Fix It
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Mistakes That Make Good Tools Look Wrong
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Frequently Asked Questions
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