Magnesium is one of the most essential minerals in your body, driving over 300 enzymatic reactions that keep you energised, calm, mobile and well. It powers the production of ATP (your cellular energy currency), regulates your muscles and nervous system, activates vitamin D, supports your sleep, and protects your heart. Without adequate magnesium, none of these processes can function as well as they should.
Despite its importance, low magnesium status is remarkably common — research suggests up to 20% of the general population, and as many as 30% of hospitalised patients, have insufficient levels. Modern food processing removes magnesium from many foods, and changes in agricultural practice may lower it in some crops, so even people eating a generally healthy diet can struggle to reach an optimal intake consistently.
For those who supplement, there is another issue: most magnesium products rely on a single form designed to serve just one purpose. Neutrient Magnesium was built around a different philosophy — that the body uses magnesium across many tissues and functions. By combining five distinct forms in one formula, it is designed to provide more comprehensive, whole-body support.
What is magnesium?
Magnesium is an essential mineral and the eleventh most abundant element in the human body. Around 60% is stored in your bones, about 27% in muscle, and the rest in soft tissue and blood. Magnesium in the blood (serum magnesium) accounts for less than 1% of your total, which is why a standard blood test is often a poor indicator of actual status.
Biochemically, magnesium works mainly as a cofactor for enzymes — it is required for over 300 enzymatic reactions, including energy production, protein synthesis, DNA replication and muscle contraction. It is also your body's natural calcium regulator: in muscle fibres, calcium triggers contraction and magnesium triggers relaxation. When magnesium is low, that balance tilts towards constant stimulation, which shows up as cramps, tension, restlessness and poor sleep.
How much do you need?
| Guideline | Amount |
|---|---|
| EU NRV | 375mg per day |
| UK RNI (adult men) | 300mg per day |
| UK RNI (adult women) | 270mg per day |
| Upper tolerable intake from supplements (EU) | 250mg per day |
| Neutrient Magnesium provides | 244mg elemental magnesium per 2-capsule serving (64% NRV) |
| Children aged 12+ | 1 capsule daily |
The EU upper tolerable intake from supplements is set at 250mg per day to avoid the laxative effect that can occur with large single doses of some forms. Neutrient Magnesium provides 244mg of elemental magnesium across five forms, spreading the dose across different absorption pathways to maximise uptake while staying comfortably within safe limits.
Who is most at risk of low magnesium?
Magnesium deficiency is more common than many people realise. You may be at higher risk if you eat a diet high in processed and refined foods; drink alcohol regularly; are under chronic stress; are over 50; have type 2 diabetes; have a gastrointestinal condition such as Crohn's, coeliac or IBD; take proton pump inhibitors, diuretics or certain antibiotics; or exercise intensively or have a physically demanding job.
Common signs of suboptimal status include muscle cramps, restless legs, poor sleep, anxiety, fatigue, headaches, constipation and low mood. These are often subtle and easy to attribute to other causes, which is one reason magnesium deficiency is so often overlooked.
The best food sources of magnesium
Magnesium is found primarily in plant foods — seeds, nuts, whole grains, legumes and dark leafy greens — while most animal products contain relatively little. One thing to be aware of: phytates, naturally present in whole grains, nuts, seeds and legumes, can reduce magnesium absorption by binding to the mineral in the digestive tract.
| Food source | Magnesium (mg/100g) | Notes |
|---|---|---|
| Pumpkin seeds | 592 | One of the richest sources; also rich in zinc and healthy fats |
| Almonds | 270 | Also provide calcium, vitamin E and healthy fats |
| Cashews | 260 | A good all-round mineral source |
| Dark chocolate (70%+) | 228 | Excellent source; choose high cocoa content |
| Boiled spinach | 87 | Cooking reduces volume but concentrates minerals |
| Black beans (cooked) | 70 | Also provide protein, fibre and iron |
| Edamame (cooked) | 64 | Good plant-based protein alongside magnesium |
| Quinoa (cooked) | 64 | One of the few grains providing a meaningful dose |
| Wholemeal bread | 56 | Considerably more magnesium than white bread |
| Brown rice (cooked) | 44 | Considerably more magnesium than white rice |
| Salmon (cooked) | 30 | Also rich in omega-3 fats, B12 and vitamin D |
| Banana | 27 | Provides potassium and magnesium; a convenient source |
| Full-fat milk | 11 | Moderate source; calcium can compete with absorption |
What is magnesium good for?
People often ask what magnesium is good for, or whether a supplement is worth taking. The honest answer is that it depends which function you focus on — because the list spans almost every system in your body.
Are there different types of magnesium supplement?
Magnesium supplements come in many chemical forms, and the form significantly affects absorption, tolerability and which tissues and functions benefit most. Most people are not aware of this and assume one magnesium supplement is much like another. It is not.
The most commonly used forms fall into two broad categories: inorganic salts (such as magnesium oxide and carbonate) and organic compounds, which include chelated forms where magnesium is bound to an organic molecule such as an amino acid or organic acid. Chelated forms generally have higher bioavailability and are better tolerated, though some inorganic forms have specific advantages — magnesium oxide, for example, carries by far the highest elemental magnesium content, which makes a meaningful dose achievable in a compact serving.
"There's a persistent myth that magnesium oxide isn't absorbed well. The evidence simply doesn't support that view at the doses we use. But more importantly, this misses the point of the five-form approach. Different forms have different strengths. The blend is the strategy — oxide for its elemental density, chelates for bioavailability and tissue targeting, and taurate and malate for their specialist applications. No single-form supplement is designed to provide the same breadth."
Six quick magnesium facts
What makes Neutrient Magnesium different?
Most magnesium supplements contain a single form optimised for one use: citrate for bowel regularity, oxide for a high elemental dose, or a chelate such as bisglycinate for sleep. Each does its particular job well — but your body needs magnesium in many tissues and for many functions at once. Neutrient Magnesium takes a different approach: five complementary forms, each chosen for its tissue affinity and function, working together for whole-body coverage in every daily serving.
| Form | Primary role / tissue affinity |
|---|---|
| Magnesium citrate | Well absorbed and soluble; sits within the citric-acid (Krebs) cycle for energy, and supports bowel regularity |
| Magnesium taurate | Bound to taurine, concentrated in cardiac and nervous tissue; relevant to vascular tone, heart function and calm |
| Magnesium bisglycinate | Chelated to two glycine molecules; gentle, well tolerated, and a sensible choice for sleep and nighttime comfort |
| Magnesium malate | Bound to malic acid, a citric-acid-cycle intermediate; studied in fatigue and mitochondrial energy production |
| Magnesium oxide | Highest elemental content (~60%); delivers a meaningful dose in a compact serving alongside the chelated forms |
Five forms, five pathways
Different magnesium compounds vary in absorption, tolerability and tissue distribution. Some are better studied for particular uses — glycinate for relaxation and sleep, citrate for gastrointestinal absorption. By combining five forms, Neutrient Magnesium is designed to provide broader functional support across the body's major magnesium-dependent systems: energy, muscle, nervous system, sleep, cardiovascular function, bone health and glucose metabolism.
Magnesium citrate
A well-studied oral form, generally more soluble and better absorbed than oxide. Citrate increases magnesium solubility in the gut, is commonly used in clinical studies, and can help when bowel regularity is a priority. It also forms a complex well suited to active people, sitting within the citric-acid cycle at the heart of cellular energy production.
Magnesium taurate
Combines magnesium with taurine, a sulfur-containing amino acid found in high concentrations in cardiac and nervous tissue. Taurine has independent effects relevant to cardiovascular function, including blood pressure, vascular tone and cardiac excitability, plus neuromodulatory effects that may contribute to a sense of calm — making taurate a reasonable choice in heart-focused formulas.
Magnesium bisglycinate (glycinate)
A chelated form where magnesium is bound to two glycine molecules. It is often well tolerated and may be less likely than some salts to cause loose stools, though responses vary. Glycine is itself an inhibitory neurotransmitter studied for sleep-related benefits, so bisglycinate is a sensible choice when both magnesium repletion and nighttime tolerability matter.
Magnesium malate
Combines magnesium with malic acid, a naturally occurring organic acid found in fruit (particularly apples) and a key citric-acid-cycle intermediate. This form has been studied in fibromyalgia and chronic fatigue, where impaired mitochondrial energy production is implicated, and may be relevant for active individuals or anyone dealing with persistent physical fatigue.
Magnesium oxide
Has the highest elemental magnesium content of any compound (~60%, versus ~16% for citrate and bisglycinate). It generally shows lower bioavailability than organic forms, but its high elemental density makes it essential for delivering a meaningful 244mg dose in a two-capsule serving, while the accompanying chelated forms support absorption and tolerability.
| Form | Approx. elemental magnesium | Best known for |
|---|---|---|
| Magnesium oxide | ~60% | Highest elemental density; delivers meaningful dose in a compact serving |
| Magnesium citrate | ~16% | Absorption and solubility; energy cycle; bowel regularity |
| Magnesium bisglycinate | ~16% | Gentle tolerability; sleep and nervous-system support |
| Magnesium taurate | Form-specific | Cardiovascular support and calm |
| Magnesium malate | Form-specific | Mitochondrial energy and fatigue |
| Total per 2-capsule serving | 244mg elemental | 64% of the EU NRV, across five pathways |
Who is Neutrient Magnesium for?
Neutrient Magnesium is designed for anyone who wants to address one or more of the common signs of magnesium deficiency, or simply to meet their daily requirement with the best possible formula:
• Those with poor sleep, restless legs or difficulty relaxing at night, for whom bisglycinate and taurate provide targeted neurological and relaxation support
• People with muscle cramps, spasms or prolonged soreness after exercise, where magnesium's calcium-antagonist role is most relevant
• Anyone under significant or chronic stress, for whom breaking the stress-magnesium depletion cycle is a priority
• Those with fatigue or low energy, for whom malate and citrate directly support mitochondrial ATP production
• Older adults, in whom absorption declines with age and deficiency risk increases
• Active individuals and athletes who lose magnesium through sweat and have elevated daily requirements
• People with cardiovascular concerns, where magnesium taurate provides the most relevant form-specific support
• Those with type 2 diabetes or insulin resistance, who commonly have lower circulating magnesium
• Anyone wanting a single, comprehensive magnesium supplement rather than several separate products
How to take Neutrient Magnesium
The recommended serving is 2 capsules daily, providing 244mg of elemental magnesium. Children aged 12+ can take 1 capsule daily. The multi-form blend is gentle enough to take on an empty stomach, and each bottle of 120 capsules provides a two-month supply.
Evening for sleep support
Many people take magnesium in the evening, when the bisglycinate and taurate forms can support relaxation, calm and sleep quality
With or without food
The chelated forms are gentle and well tolerated, so Neutrient Magnesium can be taken with a meal or on an empty stomach, whichever suits you
With water
Take with a glass of water to support capsule dissolution and comfortable absorption
Consistency matters
Magnesium status builds over time. Daily use is more effective than occasional dosing, particularly when addressing sleep, stress or cramps
How safe is magnesium?
Magnesium is generally very safe at recommended doses. The EFSA-derived upper level for supplemental magnesium from readily dissociable salts is 250mg per day, based on the dose at which some people begin to experience loose stools. Neutrient Magnesium provides 244mg of elemental magnesium per serving, within this supplemental guideline.
The most common side effect of magnesium supplementation is loose stools or mild digestive discomfort, particularly with forms such as citrate or oxide in larger single doses. Because Neutrient Magnesium uses a multi-form approach, it may be better tolerated by some people than a single high dose of one form, though individual responses vary.
Individuals with kidney disease should not supplement with magnesium without medical advice, as the kidneys are responsible for excreting excess magnesium. In healthy people, any excess from supplementation is efficiently cleared.
Disclaimer
Safe for long-term daily use at the recommended 2-capsule serving. Suitable for adults from 18 years, and children aged 12+ at 1 capsule daily. If pregnant, breastfeeding, taking medication or managing a medical condition, consult a doctor before use. Individuals with kidney disease should not supplement with magnesium without medical advice. Food supplements are not a substitute for a varied and balanced diet and a healthy lifestyle.
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