🕐 Last updated: June 2025
📋 Food Supplement: Muscle Tension PRO Magnesium Glycinate Tablets are food supplements — not medicines. Not intended to diagnose, treat, cure or prevent any disease or medical condition. All health claims on this page are authorised under EU Regulation 1924/2006 retained in UK law at the declared magnesium amounts. Consult your GP before use if taking prescription medication or have any diagnosed medical condition. Food supplement — not a medicine.
⚠️ Consult Your GP Before Use If: You are taking prescription medication — magnesium can interact with some antibiotics, bisphosphonates and certain heart medications · you have kidney disease · pregnant or breastfeeding · taking any other magnesium supplement. Do not exceed the UK FSA recommended supplemental intake of 400mg magnesium per day from supplements. Food supplement — not a medicine.
💪 Magnesium Glycinate Tablets UK — Muscle Tension PRO 300mg
Muscle Tension PRO delivers 300mg Magnesium Glycinate (Bisglycinate) per tablet — chelated magnesium in one of the most bioavailable and digestively gentle forms available, built around the authorised EU/UK health claim: magnesium contributes to normal muscle function. Where to buy magnesium glycinate tablets UK formulated for muscle health? Direct from Charge Products — UK-held stock, same-day dispatch before 3:30pm, 158,000+ verified marketplace sales, 5 Star Food Hygiene Rating, est. 2016.
Magnesium is involved in over 300 enzymatic processes in the human body — and its role in normal muscle function is among the most well-documented. Calcium triggers muscle contraction by binding to contractile proteins. Magnesium is the mineral that enables muscle fibres to relax after contraction — it competes with calcium at binding sites and is an essential cofactor for the ATP-powered pumps that remove calcium from muscle cells. Without adequate magnesium, the calcium-magnesium balance shifts toward persistent contraction — producing tension, tightness and cramping. This is the direct biochemical basis for the authorised EU/UK health claim. Educational background only — food supplement, not a medicine.
A 2024 systematic review found that magnesium supplementation decreased muscle soreness, improved performance and had a protective effect on muscle damage in physically active individuals. Around 60% of UK adults fail to meet the recommended magnesium intake (RNI) according to NDNS data — making supplementation a practical consideration for those seeking to support their daily magnesium levels alongside a balanced diet. Educational background only — food supplement, not a medicine.
Important — tablet format: Muscle Tension PRO is a tablet, not a capsule. All tablets require standard excipients — bulking agents and anti-caking agents — for manufacture. These are declared on the product label. The active magnesium glycinate content is fully declared and unaffected by excipients. Food supplement — not a medicine.
🔬 The Science — How Magnesium Supports Normal Muscle Function
⚙️ The Calcium-Magnesium Mechanism — Contraction and Relaxation
Muscle contraction is triggered by calcium ions binding to troponin — enabling the myosin-actin interaction that shortens the muscle fibre. Relaxation requires ATP-powered calcium pumps, for which magnesium is an essential cofactor. Magnesium is also a natural calcium antagonist — competing with calcium at binding sites. Without adequate intracellular magnesium, calcium removal is impaired and muscles remain in relative over-contraction. This is the direct biochemical basis for the authorised EU/UK health claim: magnesium contributes to normal muscle function. Educational background only — food supplement, not a medicine.
📊 2024 Systematic Review — Muscle Soreness and Performance
A 2024 systematic review found that magnesium supplementation decreased muscle soreness, improved performance, and had a protective effect on muscle damage in physically active individuals. This evidence is specifically in the context of physically active adults — the evidence for muscle soreness reduction and performance protection is meaningfully different from the evidence base for idiopathic rest cramps in general populations. Educational background only — food supplement, not a medicine.
📚 Cochrane Review 2020 — Honest Assessment
The 2020 Cochrane Review (Garrison et al., PubMed 32956536) analysed 11 RCTs involving 735 participants and concluded that magnesium supplementation is unlikely to provide clinically meaningful cramp prophylaxis to older adults experiencing idiopathic skeletal muscle cramps. For pregnancy-associated rest cramps, the literature was described as conflicting. The review evaluated cramp prevention specifically — not the broader physiological role of magnesium in normal muscle function or the 2024 findings in physically active populations. Educational background only — food supplement, not a medicine.
🧪 Why Magnesium Glycinate — The Form Matters
Magnesium Oxide has approximately 4% bioavailability — the vast majority passes through unabsorbed. Magnesium Glycinate (Bisglycinate) is chelated — bound to glycine, significantly improving absorption via active intestinal transport. It is exceptionally well tolerated with no laxative effect at standard doses. The glycine component has its own inhibitory neurotransmitter activity — acting on glycine receptors in the spinal cord which play a role in regulating muscle tone. Educational background only — food supplement, not a medicine.
✅ All 10 Authorised EU/UK Health Claims for Magnesium
Authorised under EU Regulation 1924/2006 retained in UK law · These are the only health claims made for this product · Food supplement — not a medicine
✅ Magnesium contributes to normal muscle function
🧪 Full Specification
| Specification | Detail |
|---|---|
| Product name | Muscle Tension PRO |
| Active ingredient | Magnesium Glycinate (Bisglycinate) · CAS 14783-68-7 ✅ |
| Amount per tablet | 300mg Magnesium Glycinate ✅ |
| Format | Tablet — standard excipients declared on label |
| Magnesium form | Chelated Bisglycinate — superior absorption vs oxide ✅ |
| Authorised health claims | ✅ 10 authorised EU/UK claims for magnesium |
| Primary claim | ✅ Normal muscle function |
| Manufacturer | Big Idea Services Ltd · Co. No. 11645389 · Est. 2016 |
| Facility | ⭐ 5 Star FSA Food Hygiene · Unit 1, 8 Towerfield Road, SS3 9QE ✅ |
| Classification | Food supplement — not a medicine |
| UK dispatch | 🇬🇧 Same-day before 3:30pm Mon–Fri ✅ |
Glycinate
UK Claims
Form
Sales
Rating
🛒 Where to Buy Muscle Tension PRO UK
Buy Muscle Tension PRO Magnesium Glycinate 300mg Tablets direct from Charge Products — UK-held stock, same-day dispatch. Also available via eBay UK. 158,000+ verified sales. 5 Star Food Hygiene Rating. Est. 2016. Big Idea Services Ltd (Co. No. 11645389). Food supplement — not a medicine.
Magnesium Tablets Wholesale UK · Bulk Magnesium Glycinate UK · Trade Supply
300mg Magnesium Glycinate · 10 Authorised Claims · Normal Muscle Function · UK Since 2016
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❓ Frequently Asked Questions
What is Muscle Tension PRO?
Muscle Tension PRO is Magnesium Glycinate 300mg tablets by Charge Products (Big Idea Services Ltd, Co. No. 11645389). Magnesium contributes to normal muscle function — an authorised EU/UK health claim. 10 authorised claims total. Tablet format with standard excipients declared on label. Food supplement — not a medicine.
How does magnesium support muscle function?
Calcium triggers muscle contraction; magnesium enables relaxation by competing with calcium at binding sites and activating the ATP-powered pumps that remove calcium from muscle cells after contraction. Without adequate magnesium, muscles remain in relative over-contraction — producing tension and tightness. Magnesium contributes to normal muscle function — an authorised EU/UK health claim. A 2024 systematic review found magnesium decreased muscle soreness and had a protective effect on muscle damage in physically active individuals. Educational background only — food supplement, not a medicine.
Why is Magnesium Glycinate used rather than Magnesium Oxide?
Magnesium Oxide has approximately 4% bioavailability — the vast majority passes through unabsorbed and can cause a laxative effect. Magnesium Glycinate (Bisglycinate) is chelated — bound to glycine — which significantly improves absorption through active intestinal transport. Excellent digestive tolerance, no laxative effect at standard doses.
What does the 2024 research show about magnesium and muscles?
A 2024 systematic review found magnesium supplementation decreased muscle soreness, improved performance and had a protective effect on muscle damage in physically active individuals. This is separate from the evidence for idiopathic rest cramps in general populations, where the 2020 Cochrane Review found mixed results. Educational background only — food supplement, not a medicine.
What are the 10 authorised health claims for magnesium?
Normal muscle function · reduction of tiredness and fatigue · normal nervous system function · normal psychological function · energy-yielding metabolism · electrolyte balance · maintenance of normal bones · maintenance of normal teeth · normal cell division · neurotransmission and muscle contraction including heart muscle. All authorised under EU Regulation 1924/2006 retained in UK law. Food supplement — not a medicine.
Why is this a tablet and not a capsule?
Both tablets and capsules are effective formats for delivering magnesium. As with all tablets, standard excipients — bulking agents, anti-caking agents — are required for manufacture and are declared on the product label. The active magnesium glycinate content is fully declared and unaffected by excipients. For a filler-free capsule format see our Magnesium Glycinate 650mg Capsules.
When is the best time to take Muscle Tension PRO?
Magnesium glycinate can be taken at any time of day with food. Many people prefer the evening — magnesium also supports normal nervous system function and normal psychological function. Follow the label directions. Do not exceed the UK FSA recommended supplemental intake of 400mg magnesium per day. Food supplement — not a medicine.
Is this product a medicine?
No — Muscle Tension PRO Magnesium Glycinate Tablets are food supplements, not licensed medicines. Not intended to diagnose, treat, cure or prevent any disease or medical condition. Food supplement — not a medicine.
Can I buy Muscle Tension PRO wholesale UK?
Yes — wholesale magnesium glycinate tablets UK and bulk magnesium supplement UK supply available from Charge Products (Big Idea Services Ltd, Co. No. 11645389), supplying health retailers, resellers and trade buyers from UK-held stock since 2016. 158,000+ verified marketplace sales. Contact via trade enquiry page.
How much magnesium is in each tablet?
Each tablet contains 300mg Magnesium Glycinate (Bisglycinate) · CAS 14783-68-7. The elemental magnesium content depends on the percentage by weight of magnesium in the glycinate chelate — see the product label for the declared elemental magnesium amount per tablet. The UK RNI for magnesium is 270mg/day (women) and 300mg/day (men). Do not exceed 400mg supplemental magnesium per day (UK FSA guidance). Food supplement — not a medicine.
📚 Research References — Educational Context Only
- Garrison SR, Korownyk CS, et al. "Magnesium for skeletal muscle cramps." Cochrane Database of Systematic Reviews, 2020; CD009402. PubMed 32956536 — 11 RCTs; 735 participants; mixed results for idiopathic cramps; educational background only
- 2024 systematic review: magnesium supplementation decreased muscle soreness, improved performance and had a protective effect on muscle damage in physically active individuals — drugs.com medically reviewed Sep 2025; educational background only
- de Baaij JHF, et al. "Magnesium in man: implications for health and disease." Physiological Reviews, 2015; 95(1):1–46. PubMed 25540137 — comprehensive magnesium physiology; educational background only
- Volpe SL. "Magnesium: Health effects, deficiency burden, and public health." Nutrients, 2025; 17(22):3626. MDPI 2025 — magnesium UK public health; educational only
Educational context only. All claims authorised under EU Regulation 1924/2006 retained in UK law. Food supplement — not a medicine.
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Disclaimer: Muscle Tension PRO Magnesium Glycinate Tablets are food supplements — not licensed medicines. Not intended to diagnose, treat, cure or prevent any disease or medical condition. All health claims are authorised under EU Regulation 1924/2006 retained in UK law at the declared magnesium amounts. Do not exceed the UK FSA recommended supplemental intake of 400mg magnesium per day. Consult your GP before use if taking prescription medication, have kidney disease, any diagnosed medical condition, or are pregnant or breastfeeding. Tablets contain standard excipients required for manufacture — see label for full declared ingredient list. Store below 25°C. Keep sealed. Keep out of reach of children. Manufactured by Big Idea Services Ltd, Company No. 11645389. Unit 1, 8 Towerfield Road, Towerfield Industrial Estate, Southend-on-Sea, Essex SS3 9QE. Food supplement — not a medicine.
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