The UK's best-selling magnesium supplement with over 100,000 purchases per month and 31,793 Amazon reviews — Nutrition Geeks' Magnesium Glycinate 3-in-1 is a science-backed triple-form formula that delivers what single-form magnesium products simply can't.
By combining Magnesium Glycinate (for sleep and calm), Magnesium Malate (for energy and fatigue reduction) and Magnesium Citrate (for digestion and absorption) in a single daily capsule, this formula supports your body around the clock — morning energy, daytime focus and evening recovery — all from one supplement.
Each serving of two vegan capsules delivers 384mg of elemental magnesium (102% NRV), made in the UK with letterbox-friendly flat-pack packaging and a Net Zero commitment.
- Highest bioavailability — chelated form
- Muscle relaxation & tension relief
- Sleep quality & sleep onset
- Stress, anxiety & mood balance
- Gentle on digestion — non-laxative
- Restless legs support
- Supports ATP energy production
- Reduces tiredness & fatigue
- Muscle soreness reduction
- Post-exercise recovery support
- Fibromyalgia management studied
- Sustained energy — no crash
- Promotes healthy digestion
- Enhances mineral absorption
- Gentle gut-cleansing action
- Fast-absorbing citrate form
- Supports electrolyte balance
- Magnesium replenishment
| Component | Per Serving | % NRV |
|---|---|---|
| Total Magnesium Compounds | 1800mg | — |
| — Magnesium Glycinate | 1000mg | — |
| — Magnesium Malate | 400mg | — |
| — Magnesium Citrate | 400mg | — |
| Elemental Magnesium | 384mg | 102% |
The UK Nutrient Reference Value (NRV) for magnesium is 375mg/day. At 384mg elemental magnesium, this supplement fully covers the daily NRV with two capsules.
| Benefit | Magnesium Glycinate 3-in-1 | Magnesium Oxide / Single Form |
|---|---|---|
| Sleep & relaxation support | ✔ Glycinate (1000mg) | △ Limited |
| Energy & fatigue reduction | ✔ Malate (400mg) | ✘ Not addressed |
| Digestion & absorption | ✔ Citrate (400mg) | ✘ Not addressed |
| Gentle on stomach | ✔ All three forms | ✘ Oxide causes discomfort |
| Bioavailability | ✔ Triple-form absorption | ✘ Oxide ~4% absorbed |
| Covers 300+ body processes | ✔ Full spectrum | △ Partial |
- 102% NRV Elemental Magnesium in Two Capsules Two capsules exceed the full daily Nutrient Reference Value for magnesium at 384mg — covering every cell in the body's 300+ magnesium-dependent biochemical processes in one simple daily dose.
- Triple Bioavailability — Three Forms, Three Advantages Single-form supplements can only target one system. The Glycinate, Malate and Citrate combination in this formula provides high absorption through multiple pathways simultaneously — sleep, energy and digestion all in one capsule.
- Reduces Tiredness & Fatigue (EU Health Claim) Magnesium contributes to the reduction of tiredness and fatigue — an authorised European health claim. The Malate form is specifically associated with sustained energy release and is studied for fibromyalgia management.
- Supports Normal Psychological Function & Nervous System Magnesium contributes to normal psychological function and normal functioning of the nervous system — key for stress management, mental clarity and emotional balance throughout the day.
- Muscle Relaxation, Heart Function & Electrolyte Balance Contributes to normal muscle function (including heart muscle contraction), maintenance of normal bones and teeth, and normal electrolyte balance — a comprehensively documented suite of physiological roles.
- Gentle on the Stomach — No Laxative Effect The Glycinate form is renowned for its non-laxative, stomach-friendly profile. The 3-in-1 formula minimises any digestive discomfort associated with other forms — safe for those who've had issues with magnesium oxide or citrate alone.
- UK's #1 Best-Selling Magnesium — 100K+ Monthly Purchases Amazon's Choice with over 31,793 verified ratings, a 4.4-star average and 100,000+ purchases in the past month — the most trusted magnesium supplement in the UK market.
- Letterbox-Friendly Flat-Pack — No Wasted Space The slim flat-pack packaging fits through any standard UK letterbox, eliminating missed delivery attempts and reducing packaging waste versus bulky bottled supplements.
- Net Zero Commitment & Sustainable Mission Nutrition Geeks is committed to being the UK's leading sustainable supplement provider, with a Net Zero target. Less plastic, less waste — quality supplements that are better for you and the planet.
Nutrition Geeks is on a mission to make quality, science-backed nutrition sustainably accessible to everyone. Less plastic, less waste. Letterbox-friendly packaging reduces delivery emissions and packaging materials. The brand has committed to a Net Zero target by end of 2025, making this one of the most environmentally responsible supplement choices available.
No artificial fillers, no artificial colours, no preservatives. Gluten-free. Dairy-free. Vegan. Cruelty-free. Made in the United Kingdom.
If you are pregnant, breastfeeding, taking any prescribed medication, or have a medical condition — particularly kidney disease or heart conditions — consult your GP or healthcare professional before use.
Side effects from this supplement are rare. Discontinue use and contact your GP immediately if you experience any adverse reaction. Food supplements should not replace a varied, balanced diet and a healthy lifestyle. Store in a cool, dry place away from direct sunlight. Keep out of reach of children.
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