Skip to product information
1 of 7

Magnesium Complex

Magnesium Complex

Helps reduce tiredness and supports normal muscle function, using gentle forms that are easy on the stomach.

3 magnesium forms
375mg (100% NRV)
1 month supply
🇬🇧 Made in the UK
GMP CERTIFIED GMP Certified
BRC BRC Accredited

Nutritional Information

Each 3 capsule serving typically provides:

Magnesium 375mg (100% NRV*)
Vitamin B6 1.4mg (100% NRV*)

*Nutrient Reference Value

Ingredients: Magnesium Malate, Magnesium Bisglycinate, Capsule Shell: Hydroxypropyl Methylcellulose, Magnesium Taurine Chelate, Microcrystalline Cellulose 102, Magnesium Stearate, Silicon Dioxide, Pyridoxine HCl (Vitamin B6).

Allergy Advice: Although rigorous precautions are taken to prevent any cross-contamination, this product is manufactured in a facility that handles allergy-based materials.

Part of the Sleep & Recovery

Three NutriQuarter supplements in one stack: Magnesium Complex, Ashwagandha KSM-66® and Curcumin 95. Magnesium contri...

Curcumin 95 - Turmeric Magnesium Complex Ashwagandha KSM-66®
Sleep & Recovery

Sleep & Recovery

£50.97 £39.99 21% off
View full details

The Power Of Magnesium

Magnesium Complex
✓

Why You’ll Love It

Contributes to normal muscle function, normal functioning of the nervous system and the reduction of tiredness and fatigue, from three forms of magnesium rather than a single one.
✓

What It Supports

Magnesium also contributes to electrolyte balance and normal psychological function, and vitamin B6 contributes to the regulation of hormonal activity.
✓

What’s Inside

Three magnesium forms (Malate, Bisglycinate, Taurine Chelate) plus B6. UK-made, GMP and BRC certified.
✓

How To Use It

Daily, with or without food, including rest days. Take it at the same time each day so it becomes a habit.

Why Magnesium Complex?

Common

Many diets fall short on magnesium

Many diets don't provide as much magnesium as they could, and it's easy to fall short without realising.

What it does

Magnesium contributes to normal body function

Magnesium contributes to normal muscle function, normal functioning of the nervous system, normal psychological function, electrolyte balance and the reduction of tiredness and fatigue.

375mg

Three forms, one capsule

Bisglycinate, malate and taurine chelate, with vitamin B6. 375mg of elemental magnesium per 3-capsule serving, which is 100% of the NRV.

Benefits Of Daily Use

Normal Muscle Function

Magnesium contributes to normal muscle function.

Less Tiredness

Magnesium and vitamin B6 contribute to the reduction of tiredness and fatigue.

Electrolyte Balance

Magnesium contributes to electrolyte balance.

Nervous System

Magnesium contributes to normal functioning of the nervous system and normal psychological function.

Magnesium Complex
Why Choose NutriQuarter?
3 Forms of Magnesium in One Capsule
375mg Magnesium - 100% NRV
GMP & BRC Certified Manufacturing
UK-Made & Quality Assured

Frequently Asked Questions

What does magnesium do?

Magnesium contributes to normal muscle function, normal functioning of the nervous system, normal psychological function, normal energy-yielding metabolism, electrolyte balance and the reduction of tiredness and fatigue. It also contributes to the maintenance of normal bones and to normal protein synthesis.

Why a complex and not just one form?

This formula uses three forms of magnesium (bisglycinate, malate and taurine chelate) rather than relying on a single form.

Why 375mg elemental magnesium?

A 3-capsule serving provides 375mg of elemental magnesium, which is 100% of the Nutrient Reference Value for magnesium.

What's the difference between elemental magnesium and the total compound weight?

Many products list the total weight of the magnesium compound, not the actual magnesium content. That number is always higher and can be misleading. We list elemental magnesium, so you know exactly how much magnesium is in each serving.

Will it cause digestive issues?

We don't use magnesium oxide. Magnesium can cause loose stools in some people at higher intakes. If that happens, reduce your dose.

How do I take it?

Adults, take 1 capsule 1 to 3 times per day. Do not exceed the recommended amount. It can be taken any time of day, with or without food.

Is it suitable for vegetarians and vegans?

Yes. The capsule shell is plant-based HPMC, no gelatin.

The NutriQuarter Standard

What does “science-backed” actually mean?

Anyone can put those words on a product page. Here’s what they mean for our Magnesium Complex, and where you can check the evidence yourself.

The Ingredient

Three organic magnesium forms

Three forms of magnesium in one blend rather than a single generic one. A 2025 randomised, placebo-controlled trial studied magnesium bisglycinate, the main form in this blend, over 4 weeks.

The Dose

375mg elemental magnesium (100% NRV)

Split across 180mg bisglycinate, 165mg malate, and 30mg taurine chelate, plus 1.4mg B6, also 100% NRV.

The Formula

Chelated forms, not oxide

A separate controlled bioavailability comparison found magnesium diglycinate absorbed substantially better than magnesium oxide, the cheap form most budget blends default to, part of why these three forms were chosen over a single generic one.

Don’t just take our word for it.

Read the authorised claim, review the research, and check the product specification.

What we’re not claiming: Not a treatment for any diagnosed condition. If you've been diagnosed with a magnesium deficiency, that's a job for your doctor, not a supplement tub.