P90 Labs Science · 9 min read · Performance Science
Fifteen minutes. That is the entire window a soccer player has to restore the fuel, fluid, and electrolytes burned across 45 minutes of match play before sprinting back out for the half that decides the result. Historically, the North American solution has been bananas, orange slices, and sports drinks — a practice the P90 Labs founder frequently contrasts with Europe on LinkedIn. Modern sports science takes a very different approach.
This article details a minute-by-minute halftime protocol built on the UEFA nutrition consensus, explains what each nutrient must do before minute 46, and shows how the P90 Gel was designed specifically for this window.
The Halftime Problem
By minute 45, a player has burned roughly 100–150 g of muscle glycogen, lost 0.75–1.5 liters of fluid and sodium, and spent 45 minutes at near-threshold cognitive demand. Liver glycogen is falling, which threatens blood glucose delivery to the brain; the central nervous system is fatiguing; and the stomach is in a low-capacity state after splanchnic blood flow reduction during play ( van Wijck et al., 2011 ).
A halftime nutrition product must therefore meet four criteria: fast gastric emptying (minutes 46–90 are not the time for a heavy stomach), multi-transporter fuel ( maltodextrin + fructose), small volume, and cognitive support for the final 15 minutes.
The Minute-by-Minute Protocol
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Time
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Action
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Science
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0–3 min
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Walk, cool down, begin fluid intake
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3–6 min
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1–2 dual-source gels (18–36 g carbohydrate) + sips of water
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Maltodextrin + fructose empty within ~10 min; glucose available for second-half start ( Rowlands et al., 2012 )
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6–10 min
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Targeted hydration with sodium; coach tactics
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10–12 min
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Citicoline + magnesium onboard
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12–15 min
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Warm re-activation; mental reset
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Neuromuscular readiness
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Two P90 Gel tubes deliver 36 g of dual-source carbohydrate, 240 mg of magnesium, 500 mg of Cognizin® citicoline, 40 mg B5, and 10 mg B6 — every nutrient the protocol specifies, in a pocket format consumed in ten seconds. Critically, it is caffeine-free, so evening kick-offs do not destroy post-match sleep.
Common Mistakes
•Too much volume: half a liter of sports drink sitting in the stomach at minute 46 slows emptying and raises GI distress risk.
•Too late: taking fuel at minute 13 means it enters circulation near minute 60 — take it by minute 6.
•Caffeine stacking: caffeinated gels at night kick-offs undermine the recovery window.
•Untested products: everything at halftime must have been trained in sessions first.
References
1.Rollo I, et al. UEFA expert group statement on nutrition in elite football. British Journal of Sports Medicine. 2021;55(8):416–428. https://doi.org/10.1136/bjsports-2020-103630
2.Rowlands DS, et al. Fructose–glucose composite carbohydrates and endurance performance. Sports Medicine. 2015;45(11 ):1561–1576. https://doi.org/10.1007/s40279-015-0381-0
3.Shirreffs SM, Sawka MN. Fluid and electrolyte needs. Journal of Sports Sciences. 2011;29(Suppl 1 ):S39–S46. https://doi.org/10.1080/02640414.2011.614201
4.Silveri MM, et al. Citicoline enhances frontal lobe bioenergetics. NMR in Biomedicine. 2008;21(10 ):1066–1075. https://doi.org/10.1002/nbm.1288