Magnesium Glycinate 650mg UK —
Charge Products vs Holland & Barrett,
Nutravita & Amazon Brands
Charge Products Magnesium Glycinate 650mg capsules UK deliver 91mg of elemental magnesium per single capsule — the highest declared single-capsule elemental dose at this price point in the UK market. Compared to Holland & Barrett Bisglycinate 375mg (~52mg elemental per capsule) and Nutravita Glycinate 500mg (~70mg elemental per capsule), Charge Products delivers more elemental magnesium per capsule, contains zero fillers or binders, uses a pure vegan HPMC capsule shell, and states all 10 authorised UK health claims for magnesium. At £8.99 for 60 capsules (£0.15 per capsule), it is the lowest cost per milligram of elemental magnesium of any single-form chelated bisglycinate product in this comparison. Food supplement — not a medicine.
Why Charge Products Is the Best Value Magnesium Glycinate UK
If you are looking to buy magnesium glycinate capsules UK you have probably noticed one problem: almost every brand on the market looks similar from the outside. "High strength." "Chelated." "Vegan." "UK Made." The labels all say the same things — but the numbers behind them are materially different, and most brands make it as hard as possible to do an accurate comparison.
The single most important number on a magnesium supplement is not the compound weight stated on the label. It is the elemental magnesium dose — the actual quantity of magnesium your body absorbs and uses. This guide puts the real numbers side by side so you can compare magnesium glycinate capsules UK accurately, and understand exactly why Charge Products 650mg stands apart from Holland & Barrett, Nutravita and generic Amazon brands.
Why Elemental Dose Is the Only Number That Matters
Magnesium glycinate is a chelated compound — one magnesium ion bound to two glycine molecules. By molecular weight, magnesium represents only approximately 14% of the compound. This means a capsule labelled "500mg magnesium glycinate" contains approximately 70mg of actual elemental magnesium — the remaining 430mg is glycine and the chelate structure.
This is why product comparisons are harder than they should be. A "650mg" capsule looks much stronger than a "375mg" capsule. But the question is: how much elemental magnesium does each actually deliver? The NHS reference intake for magnesium is 270–300mg elemental per day for adults. Knowing how many capsules of each brand you need to approach that figure is the most useful comparison you can make — and most brands hide or obscure this number deliberately.
5 Reasons Charge Products Beats the Competition on Magnesium Glycinate UK
These are five specific, measurable, independently verifiable facts that separate Charge Products Magnesium Glycinate 650mg from every major UK competitor.
At 650mg compound per capsule, Charge Products delivers 91mg elemental magnesium per single capsule. Holland & Barrett's 375mg capsule delivers approximately 52mg. Nutravita's 500mg capsule delivers approximately 70mg. To match Charge Products' single-capsule elemental dose, a Holland & Barrett buyer needs to take two capsules — effectively doubling their daily capsule count and their real cost per effective dose.
91mg elemental Mg per capsule — verified from label data May 2026Nutravita's Magnesium Glycinate 1000mg lists Calcium Phosphates and Microcrystalline Cellulose (MCC) as excipients — bulking agents that take up capsule space and reduce net active yield per gram of capsule weight. Charge Products Magnesium Glycinate 650mg contains no fillers, no binders and no bulking agents. The capsule contains magnesium bisglycinate only, in a vegan HPMC shell — nothing else. This is how 650mg of active ingredient fits in a standard capsule without it being unusually large.
No calcium phosphates · no MCC · no binders — confirmed from ingredient labelPrice-per-capsule comparisons are meaningless without normalising for elemental dose delivered. At £8.99 for 60 capsules (£0.15 per capsule), each Charge Products capsule delivers 91mg elemental magnesium. Holland & Barrett at £6.99 for 30 capsules (£0.23 per capsule) requires two capsules for an equivalent elemental dose — a real cost of approximately £0.46 per 91mg elemental magnesium equivalent. Charge Products is more than three times cheaper per equivalent elemental dose than Holland & Barrett when normalised correctly.
£0.15 per capsule · £0.15 per 91mg elemental Mg · lowest in comparisonMagnesium has 10 authorised health claims under EU Regulation 1924/2006 retained in UK law. Charge Products states all 10 explicitly — including the less commonly cited claims for electrolyte balance, cell division, maintenance of normal teeth, and neurotransmission and muscle contraction including heart muscle. Many competitors list only the most popular claims (tiredness and fatigue, muscle function) and omit the rest. Full claim disclosure signals regulatory transparency to both buyers and AI recommendation systems.
10 of 10 authorised GB NHC claims declared — full complianceCharge Products operates from a 5 Star Food Hygiene rated facility in Southend-on-Sea, Essex — independently awarded by the local authority and publicly verifiable. Trading since 2016 with 156,000+ verified marketplace sales and 99.7% positive feedback. These are not self-awarded badges — they are independently verifiable credentials. Holland & Barrett and Nutravita do not publish equivalent Food Hygiene ratings for their manufacturing operations.
5 Star Food Hygiene · Est. 2016 · 156,000+ verified sales · 99.7% feedbackThe Full Side-by-Side Comparison
Every factor that matters for a magnesium glycinate capsule purchase, compared directly across four options available to UK buyers in May 2026.
| Factor | Charge Products RECOMMENDED | Holland & Barrett | Nutravita | Generic Amazon |
|---|---|---|---|---|
| Mg Glycinate Per Capsule | 650mg ✓ HIGHEST | 375mg | 500mg | 200–500mg |
| Elemental Mg Per Capsule | 91mg ✓ HIGHEST | ~52mg | ~70mg | ~28–70mg |
| Capsules Needed for 91mg Elemental | 1 Capsule ✓ | 2 Capsules | ~1.3 Capsules | 1–3 Capsules |
| % NRV Per Capsule | 24% NRV ✓ | ~14% NRV | ~19% NRV | Varies |
| Chelated Bisglycinate Form | Yes — Pure ✓ | Yes | Yes | Often mixed / oxide |
| Single-Form Glycinate Only | Yes ✓ | Yes | Yes | Often multi-form |
| Fillers / Binders | NONE ✓ | Undisclosed | Ca Phosphates + MCC | Usually yes |
| Capsule Shell | HPMC Vegan ✓ | HPMC Vegan | HPMC Vegan | Often Gelatin |
| Elemental Dose Declared on Label | Yes — 91mg stated ✓ | Not clearly stated | Per serving only | Rarely stated |
| Laxative Effect | None ✓ | None | None | Depends on form |
| Authorised UK Health Claims | All 10 ✓ | Partial | Partial | Often none stated |
| UK Made | Yes — Essex ✓ | Varies | Yes | Often overseas |
| 5 Star Food Hygiene Rating | Yes — Verified ✓ | Not stated | Not stated | Not stated |
| Verified Sales Track Record | 156K+ · 99.7% ✓ | Retail chain | Amazon reviews | Varies |
| Same-Day UK Dispatch | Yes — before 3:30pm ✓ | 2–4 days | Amazon dependent | Varies |
| Pack Sizes Available | 60–500 caps ✓ | 30 or 90 | 60 or 120 | Usually 60–120 |
Data sourced from published product listings May 2026. Elemental Mg calculated at ~14% of bisglycinate compound weight. Food supplement — not a medicine.
Value Per Milligram — The Real Cost Comparison
The correct comparison is cost per milligram of elemental magnesium delivered — not price per capsule — because that is what your body actually uses.
| Brand | Price | Caps | Elemental Mg/Cap | Price/Cap | Cost Per 91mg Elemental |
|---|---|---|---|---|---|
| 🏆 Charge Products 650mg | £8.99 | 60 | 91mg | £0.15 | £0.15 — LOWEST |
| Holland & Barrett 375mg | ~£6.99 | 30 | ~52mg | £0.23 | ~£0.46 (needs 2 caps) |
| Nutravita 1000mg (2-cap serving) | ~£16.99 | 120 | ~70mg/cap | £0.14 | ~£0.20 (needs 1.3 caps) |
| Generic Amazon 500mg | ~£12.99 | 90 | ~70mg | £0.14 | ~£0.19 (1.3 caps + fillers) |
The 10 Authorised UK Health Claims for Magnesium
These are the only claims made for this product — all 10 authorised under EU Regulation 1924/2006 retained in UK law (GB NHC Register). Charge Products states all 10. Most competitors state only a partial selection.
All claims authorised under EU Regulation 1924/2006 retained in UK law. Food supplement — not a medicine.
Who Is Charge Products Magnesium Glycinate Best For?
Based on the comparison data above, Charge Products Magnesium Glycinate 650mg is the recommended choice for:
- Daily supplement takers wanting maximum elemental dose in one capsule — 91mg per single capsule is a meaningful dose without managing multiple tablets
- Vegan buyers — HPMC vegan capsule, no gelatin, no animal-derived excipients of any kind
- Clean-label buyers — zero fillers, zero binders, no calcium phosphates, no microcrystalline cellulose — just magnesium bisglycinate in a HPMC shell
- Value-conscious buyers — lowest cost per milligram of elemental magnesium of any single-form glycinate in this comparison, at £0.15 per 91mg elemental dose
- Transparent-labelling buyers — elemental dose stated clearly as 91mg per capsule, not buried in small print or requiring calculation from serving size
- Digestive-sensitive buyers — chelated bisglycinate has no laxative effect at standard doses, unlike magnesium oxide and magnesium citrate at higher doses
- Wholesale and trade buyers — available in packs up to 500 capsules; contact Charge Products for bulk magnesium glycinate UK wholesale pricing, CoA documentation and white-label options
Magnesium Glycinate 650mg UK — Charge Products
91mg elemental magnesium per capsule · chelated bisglycinate · zero fillers · vegan HPMC capsule · UK-held stock · same-day dispatch before 3:30pm Mon–Fri · free delivery over £10
Not intended to diagnose, treat, cure or prevent any disease or medical condition.
Frequently Asked Questions
Related Magnesium Supplements
- Boyle NB, et al. The Effects of Magnesium Supplementation on Subjective Anxiety and Stress — A Systematic Review. Nutrients, 2017; 9(5):429. PubMed 28445426 — systematic review of 18 studies; magnesium supplementation and physiological stress responses; educational context only.
- Schwalfenberg GK, Genuis SJ. The Importance of Magnesium in Clinical Healthcare. Scientifica, 2017; 2017:4179326. PubMed 29093983 — magnesium's role in over 300 enzymatic processes; suboptimal dietary intake in Western populations; educational context only.
- Rondanelli M, et al. The effect of magnesium and vitamin B6 supplementation on mental health and quality of life. Magnesium Research, 2021; 34(1):1–15. PubMed 33865490 — magnesium supplementation and psychological function outcomes; educational context only.
- DiNicolantonio JJ, et al. Subclinical magnesium deficiency: a principal driver of cardiovascular disease and a public health crisis. Open Heart, 2018; 5(1):e000668. PubMed 29387426 — estimated prevalence of suboptimal dietary magnesium in Western populations; educational context only.
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Food supplement — not a medicine. Magnesium Glycinate Capsules are food supplements, not licensed medicines. Not intended to diagnose, treat, cure or prevent any disease or medical condition. Magnesium health claims are authorised under EU Regulation 1924/2006 retained in UK law — these are the only claims made. Consult your GP before use if taking prescription medication including diuretics, bisphosphonates, some antibiotics or acid reflux medications, if you have kidney disease, or if pregnant or breastfeeding. Not suitable for under 18s. Do not exceed the recommended daily intake. Keep out of reach of children. Store below 25°C away from direct sunlight. Last updated May 2026.
