😴 Magnesium and Zinc Deficiency: How to Recognize It and Why Most People Lack These Minerals
Two minerals worth thinking about before symptoms appear
Magnesium and zinc are a pair we "flush out" without noticing: through coffee, stress, workouts and processed food. The signs of a shortage are easy to mistake for laziness or a bad mood. Let's look at how to recognize them and restore the balance.
Why they are lacking
The modern diet is poor in these minerals: soils are depleted, and coffee and alcohol "wash out" magnesium. Add constant stress — and deficiency becomes almost the norm.
- Coffee and alcohol wash out magnesium.
- Processed food is poor in minerals.
- Stress increases demand.
- Soils are depleted.
Magnesium signs
Magnesium affects muscles and nerves. Its shortage means night cramps, eye twitching, insomnia, anxiety and a craving for sweets.
- Night calf cramps.
- Eye twitching.
- Insomnia and anxiety.
- Craving for chocolate.
Zinc signs
Zinc is the "guardian" of immunity and skin. Its shortage shows in frequent colds, slowly healing scratches, acne and a dulled sense of taste.
- Frequent colds.
- Slowly healing wounds.
- Problem skin.
- Dulled taste.
Tests
Magnesium is checked in blood serum, but that's only a small part of the stores — levels can look normal even with deficiency. Zinc is measured in blood and hair.
| Test | What it shows |
|---|---|
| Blood magnesium | Only part of the stores |
| RBC magnesium | More accurate |
| Blood zinc | Overall level |
Food sources
| Mineral | Food | Content |
|---|---|---|
| Magnesium | Pumpkin seeds | ~262 mg/30 g |
| Magnesium | Almonds | ~80 mg/30 g |
| Zinc | Oysters | ~32 mg/100 g |
| Zinc | Beef | ~5 mg/100 g |
Dosages
| Mineral | Dosage |
|---|---|
| Magnesium | 300–400 mg/day |
| Zinc | 8–15 mg/day |
Practice
- Magnesium — evening, zinc — morning.
- Magnesium glycinate is gentler on the stomach.
- Zinc with food to avoid nausea.
- Less coffee and alcohol.
- More seeds and nuts.
- Consult a doctor.
How to tell if magnesium is low?
Cramps, eye twitching, insomnia, craving for sweets.
How to tell if zinc is low?
Frequent colds, slow healing, skin problems.
Can they be taken together?
Better separately — they compete for absorption.
How much magnesium per day?
300–400 mg a day.
Which magnesium is best?
Glycinate is gentle on the gut; citrate absorbs well.
Where is most magnesium?
In pumpkin seeds, almonds, spinach.
Where is most zinc?
In oysters, beef, pumpkin seeds.
What washes out magnesium?
Coffee, alcohol, stress, sweat.
How much zinc per day?
8–15 mg a day for adults.
When is a doctor needed?
With chronic fatigue, cramps and frequent illness.