P90 Labs Science · 9 min read · Ingredients
Every muscular contraction, every energy-transfer reaction, and every nerve impulse in a soccer player's body depends on a single mineral that is quietly lost in sweat and systematically underconsumed in the modern diet: magnesium. An estimated 50–70% of athletes fall short of the recommended daily intake, and in a sport that combines 90 minutes of continuous movement with heavy sweating, that shortfall is not a footnote — it is a performance variable ( Nielsen & Lukaski, 2006 ).
This article covers what magnesium does in the working muscle, why the form of magnesium matters as much as the dose, and why the P90 Gel uses dimagnesium malate rather than cheaper oxide forms.
Magnesium's Three Jobs on the Pitch
1. ATP production. The body's energy currency, adenosine triphosphate (ATP), does not exist as a free molecule in cells — it exists almost entirely as a Mg-ATP complex. Magnesium is a mandatory cofactor for every single step of glycolysis and the Krebs cycle, the pathways that turn carbohydrate fuel into movement. A magnesium-deficient muscle cannot convert its fuel into work at full efficiency ( Zhang et al., 2017 ).
2. Neuromuscular control and cramp prevention. Calcium tells a muscle fiber to contract; magnesium tells it to relax. When intracellular magnesium drops — after 60+ minutes of electrolyte loss in sweat combined with glycogen depletion — the balance between excitation and relaxation tilts, raising the risk of the painful, late-game cramps every soccer player has experienced. Systematic reviews conclude that magnesium supplementation supports muscle function and reduces exercise-associated cramping risk in deficient athletes ( Zhang et al., 2017 ; Vormann, 2003 ).
3. Recovery and sleep architecture. Magnesium regulates NMDA receptors and supports GABAergic signaling in the central nervous system, helping athletes down-regulate after high-adrenaline night matches — a function that feeds directly into the 48-hour recovery window every elite program builds around.
The Form Problem: Why Oxide Fails and Malate Wins
Not all magnesium is equal. Magnesium oxide — the most common form in cheap supplements — has an absorption rate in the single digits, with the remainder acting as an osmotic laxative. For an in-match product, oxide is the worst possible choice.
Dimagnesium malate pairs elemental magnesium with malic acid (malate), an organic compound that is itself an intermediate in the Krebs cycle. The combination offers two distinct advantages:
•Bioavailability and tolerability: Organic magnesium salts show consistently superior bioavailability compared to inorganic forms, with far less gastrointestinal disruption — essential when the product must be consumed at halftime without causing stomach complaints ( Ranade & Somberg, 2001 ; Coudray et al., 2005 ).
•Energy-cycle synergy: The malate fraction feeds directly into the same ATP-producing machinery the magnesium supports, making the compound dual-functional for endurance athletes ( Zhang et al., 2017 ).
What This Means Inside the P90 Gel
Each 30 ml tube of P90 Gel contains 600 mg of dimagnesium malate, yielding 120 mg of elemental magnesium — exactly 32% of the daily Reference Intake per serving. Two tubes across a match day cover roughly two thirds of daily needs, delivered at precisely the moment muscles are burning through their reserves, and without the stomach-disrupting forms that plague generic magnesium products.
It works alongside the 10 g maltodextrin plus 8 g fructose carbohydrate base, 250 mg of Cognizin® citicoline for brain fuel, and B-vitamins for energy metabolism — all inside a caffeine-free formula manufactured in the UK under BRC Issue 9, Halal-certified, and NSF GMP standards.
Frequently Asked Questions
Can magnesium replace electrolytes like sodium?
No. Sodium is the primary electrolyte lost in sweat and governs fluid balance. Magnesium is a complementary electrolyte governing neuromuscular function. Both matter; see our complete electrolyte playbook.
Will it make me sleepy if I take it before a match?
No. At supplemental doses, dimagnesium malate supports muscle contraction and ATP production — you are not taking a sedative. The relaxing effect is neuromuscular, not drowsy, which is why it is used both pre-game and at halftime.
How does this compare to food sources?
Magnesium-rich foods include pumpkin seeds, spinach, black beans, and almonds. They should form the foundation of an athlete's diet. The gel is for the moments — match day, halftime, congested weeks — when food alone cannot keep pace with loss rates.
References
1.Nielsen FH, Lukaski HC. Update on the relationship between magnesium and exercise. Magnesium Research. 2006;19(3):180–189. https://pubmed.ncbi.nlm.nih.gov/17172008/
2.Zhang Y, Xun P, Wang R, Mao L, He K. Can magnesium supplementation enhance athletic performance? Nutrients. 2017;9(9 ):946. https://doi.org/10.3390/nu9090946
3.Vormann J. Magnesium: nutrition and metabolism. Molecular Aspects of Medicine. 2003;24(1–3 ):27–37. https://doi.org/10.1016/s0098-2997(02 )00089-4
4.Ranade VV, Somberg JC. Bioavailability and pharmacokinetics of magnesium after administration of magnesium salts to humans. American Journal of Therapeutics. 2001;8(5):345–357. https://doi.org/10.1097/00045391-200109000-00008
5.Coudray C, et al. Study of magnesium bioavailability from ten organic and inorganic Mg salts in Mg-depleted rats using a stable isotope approach. Magnesium Research. 2005;18(4 ):215–223. https://pubmed.ncbi.nlm.nih.gov/16010006/