7 Signs You're Magnesium Deficient (And What To Do About It)

Did you know that studies suggest up to 70% of UK adults don't get enough magnesium? It's one of the most common nutrient deficiencies in Britain — and most people have no idea they have it.

Magnesium is involved in over 300 processes in the body. It helps your muscles relax, supports your nervous system, regulates your sleep, and keeps your energy levels stable. When you're not getting enough, things start to go wrong — often in ways you'd never connect to a mineral deficiency.

Here are the seven most common signs your body might be running low.

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1. You're constantly tired — even after a full night's sleep

If you wake up exhausted no matter how many hours you sleep, magnesium deficiency could be a factor. Magnesium plays a key role in converting food into energy at a cellular level. Without enough of it, your body can't produce energy efficiently — leaving you drained before the day even starts.

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2. You can't switch off at night

Lying awake, mind racing, unable to wind down? Magnesium has a calming effect on the nervous system. It activates your parasympathetic nervous system — the one responsible for rest and recovery — and regulates melatonin, the hormone that controls your sleep cycle. Low magnesium means your body struggles to shift into sleep mode.

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3. You get frequent headaches or migraines

Research has found that people who suffer from regular headaches and migraines often have lower magnesium levels than those who don't. Magnesium helps relax blood vessels and regulates neurotransmitters — both of which play a role in headache prevention.

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4. Your muscles cramp or twitch

Muscle cramps, especially in the legs at night, are one of the most well-known signs of magnesium deficiency. Magnesium and calcium work together to regulate muscle contractions. Without enough magnesium, muscles can't relax properly — leading to cramps, spasms, and that uncomfortable twitching feeling.

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5. You feel anxious or on edge for no clear reason

Magnesium acts as a natural regulator of the stress response. It controls the activity of the HPA axis — the system that manages cortisol, your main stress hormone. Low magnesium means your body produces more cortisol than it needs to, leaving you feeling wired, anxious, and unable to relax even when nothing is actually wrong.

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6. You're getting ill more often than usual

Magnesium supports healthy immune function by helping regulate inflammation in the body. If you're picking up every cold going round the office or feeling run down more than usual, low magnesium could be contributing to a weakened immune response.

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7. You struggle to concentrate or feel mentally foggy

Magnesium is essential for healthy brain function. It regulates neurotransmitters that affect focus, memory, and mood. Brain fog, poor concentration, and that feeling of not being able to think clearly are all associated with low magnesium levels.

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Why are so many UK adults deficient?

Several factors make magnesium deficiency particularly common in the UK:

- Modern food processing strips magnesium from grains and vegetables
- UK soil has become increasingly depleted in minerals over the past 50 years
- High stress levels deplete magnesium faster — the more stressed you are, the more you need
- Alcohol, caffeine, and certain medications reduce magnesium absorption
- Most people simply don't eat enough magnesium-rich foods consistently

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What can you do about it?

The best dietary sources of magnesium include dark leafy greens, nuts, seeds, legumes, and whole grains. However, for many people, diet alone isn't enough to consistently hit the recommended 300mg per day for women and 350mg for men.

Magnesium supplements are one of the most effective ways to top up your levels — but the form of magnesium matters. Magnesium citrate is one of the most bioavailable forms, meaning your body can actually absorb and use it rather than passing it straight through.

NutriPium Magnesium Citrate Gummies provide 180mg of magnesium citrate per serving in a delicious cherry-flavoured gummy — no tablets, no capsules, just two gummies a day. Made in the UK to AA Grade BRCGS standards and completely vegan and gluten-free.

If you recognise several of the signs above, it might be worth giving your magnesium levels some attention. Sometimes the simplest fix makes the biggest difference.