The Mighty Macromineral

Magnesium

Magnesium is one of the seven essential macrominerals we need for our bodies to function healthily. Healthy magnesium levels can stabilize mood, reduce stress, promote better sleep and contribute to bone and heart health.

What Magnesium can do for you?

Marine Magnesium calms the nervous system, eases muscle tension and supports restful sleep.

  • Maintains nerve and muscle function
  • Maintains healthy bones and teeth
  • Helps decrease nervousness and stress
  • Promotes better sleep

The Science

Sourced from purified seawater, Marine Magnesium is a bioavailable form of this essential mineral known for calming the nervous system, relaxing muscles, and supporting energy metabolism. Magnesium plays a key role in over 300 enzymatic reactions, including those that regulate sleep, stress response, blood pressure, and blood sugar balance. It is particularly beneficial for people with modern stress-related fatigue or tension, as it helps balance the nervous system and supports deep restorative sleep. Marine-sourced magnesium offers a gentle and natural way to replenish this vital mineral, often depleted by stress and poor dietary intake.

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The Studies

"At The Naked Pharmacy, we ensure that all of our supplements are made with effective strength bioactives, so they are clinically proven to work.

We aim for each supplement to be scientifically supported by multiple randomised placebo-controlled studies. All clinical trial studies we use to support our supplements are undertaken on human patients, using the same dosage and formulation of the product. The scientific studies are published in peer review journals."

The scientific studies to support our claims on Magnesium are published in the following peer-reviewed journals:

Study: Magnesium: A Review of Clinical Use and Efficacy

This is a paper by the Nutritional Medicine journal reviewing the clinical use and efficacy of Magnesium

What the article looked at:

This summary explains why magnesium is such an essential mineral for the body. It’s the fourth most common mineral in our bodies and plays a role in almost every process in our cells.

Why magnesium matters:

It helps over 300 enzymes do their job properly — these enzymes control things like energy production, brain signals, heart rhythm, and muscle movement.

It’s especially important inside the mitochondria (the energy powerhouses of our cells), helping your body create and manage energy.

Key roles of magnesium:

  • Energy: Needed for converting food into energy (via glycolysis and the Krebs cycle).
  • Brain and nerves: Helps regulate brain chemicals and nerve signals by supporting NMDA and GABA receptors, which influence mood, sleep, and memory.
  • Muscles and heart: Balances calcium, helping your muscles contract and relax smoothly, including your heart muscle.
  • Cell balance: Keeps your cells' mineral levels in check by maintaining low calcium and sodium inside the cell and high potassium.
  • Genetics and repair: Plays a key role in making and repairing DNA, RNA, and proteins.
  • Bones and teeth: It's also a building block in your skeletal structure.

What it means:

Magnesium isn’t just another mineral — it’s a core part of how your body runs, from energy and sleep to bones and the brain. Getting enough magnesium through diet or supplements is essential for overall wellbeing.

Magnesium and sleep:

People who don’t get enough magnesium in their diets tend to sleep less.

Magnesium may help regulate your body clock (circadian rhythm) and sleep behaviour.

In a small study on babies, higher magnesium levels were linked to better sleep patterns.

One clinical trial in older adults with insomnia showed that taking 500 mg of magnesium helped improve both how they felt about their sleep and their actual sleep quality.

Another study combining 225 mg of magnesium, melatonin, and zinc also helped elderly people with insomnia sleep better.

So far, doses between 225 mg and 500 mg of magnesium seem to be helpful, especially for people who aren't getting enough from their diets.

Magnesium and restless legs/PLMS:

Low magnesium levels may be linked to more frequent restless leg movements at night.

There’s limited formal research, but some early evidence and reports suggest that 301 mg of magnesium daily may help reduce symptoms of RLS and PLMS.

What it means:

Magnesium might support better sleep, especially in people with low levels or insomnia. It may also help with night-time restlessness, but more studies are needed to confirm this. Still, supplementing with magnesium is generally safe and well-tolerated at moderate doses.

Study: Magnesium from Deep Seawater as a Potentially Effective Natural Product against Insulin Resistance: A Randomised Trial

What the study looked at:

This study tested whether magnesium-rich mineral extracts from deep seawater could help people with pre-diabetes — those who have high blood sugar but not high enough to be diagnosed with diabetes.

How the study worked:

  • 75 adults with impaired glucose tolerance took part in a 12-week, double-blind clinical trial.
  • Half took a deep seawater supplement containing natural magnesium.
  • The other half took a placebo (no active ingredients).
  • Researchers measured their blood sugar control, insulin levels, and how well their bodies responded to insulin (a hormone that controls blood sugar).

What they found:

  • The group taking the magnesium-rich seawater showed improvements in insulin sensitivity, meaning their bodies could use insulin more effectively.
  • Markers such as fasting insulin, C-peptide, and insulin sensitivity scores improved.
  • However, blood sugar levels themselves (fasting or after meals) didn’t change much compared to the placebo group.

What it means:

Even though blood sugar levels didn’t drop, the supplement helped the body respond better to insulin — which is a key early step in preventing type 2 diabetes.

This suggests that natural magnesium from deep seawater may be a useful, natural tool for people with pre-diabetes to improve their metabolic health.

Glossary of terms:

There are a few key terms to be aware of when reviewing these studies:

Randomised Clinical Trial

A clinical trial in which the participants are assigned randomly (by chance alone) to different treatments.

Double-blind study

A study in which neither the participants nor the experimenters know who is receiving a particular treatment. This procedure is utilised to prevent bias in research results.

Double-blind studies are particularly useful for preventing bias due to demand characteristics or the placebo effect.

P-value

The probability of obtaining the observed results of a test. The lower the p-value is, the more confident we can be of a true result. For example, a p- value of 0.001 confirms a result as 99.9% accurate.

Placebo

An inactive treatment used in a clinical trial, sometimes referred to as a “sugar pill”.

A placebo-controlled trial compares a new treatment with a placebo, in order to give greater confidence that the result is only due to the test/active ingredient.