What you're looking at is a design mockup of Body+, not a live product. Nothing here is for sale, no formula you build will be made, and the numbers you'll see are illustrative.
Three to five training sessions a week plus ninety minutes on match day. Sodium falls long before anyone cramps, and magnesium demand tracks total volume — neither shows up on a standard panel until the problem is already clinical. Here's the load your fixture list actually creates, and the formula it implies.
Not because you play football. Because of four specific things repeated sprints, match congestion and winter training do to you.
Repeated sprints and decelerations create eccentric loading that damages muscle fibres mechanically rather than depleting glycogen. Magnesium demand tracks total training volume and rises further with that damage. Match congestion compresses recovery windows to two or three days, so the limiting factor is repair between fixtures rather than aerobic capacity. Eating more protein addresses the substrate but not the signalling that coordinates it.
Ninety minutes of intermittent work can cost substantial fluid, and losses rise sharply in warm conditions. Sodium concentration in sweat varies widely between players — some lose three times as much per litre as others. Replacing volume with plain water while ignoring solute is the most common self-inflicted problem in this group, and it is the usual reason cramping shows up late in a match rather than early.
Training and matches under floodlights mean months of minimal daylight exposure. Cutaneous synthesis of vitamin D is near zero at Swiss and Northern European latitudes from October through March regardless of time spent outdoors. A standard panel checks it, but the check usually happens in summer when status looks fine, then nothing is measured again until the following year when winter has already done the work.
During winter months, daylight exposure is minimal, and cutaneous vitamin D synthesis drops to near zero in Northern Europe. Training under floodlights compounds this deficiency. The naive assumption that outdoor activity suffices for vitamin D ignores the latitude effect, leaving players at risk of suboptimal bone and muscle function throughout the season.
This is the cohort prior — what your training pattern implies before we see a panel. The model estimates three markers from your session rate and fixture schedule. A blood test replaces the guesses with readings, and the retest at 8–12 weeks tells you whether the formula and the load are actually balanced.
Refine this with my answers* Claims shown are limited to authorised structure/function statements. Magnesium contributes to normal muscle function and to the reduction of tiredness and fatigue. Magnesium contributes to normal energy-yielding metabolism. Vitamin D contributes to the maintenance of normal muscle function. DHA contributes to maintenance of normal brain function. Body+ products are food supplements and are not intended to diagnose, treat, cure or prevent any disease.
Electrolyte balance sits at the centre of the estimate band — the widest gap between what a panel shows and what the load implies. Sweat sodium concentration varies person to person by a factor of three, and no blood test reports it. We give you three readings and refuse to guess the rest.
Electrolyte balance sits at the centre of the estimate band for this cohort — the widest gap between what a panel shows and what the load implies. The reason is not that football is uniquely demanding. It is that sweat sodium concentration varies person to person by a factor of three, and no blood test reports it.
Cramping arrives late, not early The counter-intuitive part: if cramping were simple depletion, you would expect it in the first half, when stores are highest and work rate peaks. Instead it appears in the final twenty minutes, often in players who have been drinking throughout. The mechanism is dilution, not dehydration. Replacing sweat volume with plain water while ignoring solute lowers serum sodium progressively across the session. Muscle excitability rises as the gradient narrows, and cramping is the clinical sign before hyponatraemia becomes the medical one. It is the most common self-inflicted problem in this group, and it happens to well-hydrated players.
What a panel shows, and what it misses A standard electrolyte panel measures serum sodium at a single point in time, usually at rest, and reports a number inside the reference range. That reading says nothing about what happens during ninety minutes of intermittent work in warm conditions, and it cannot. Sweat sodium concentration varies from roughly 20 to 80 mmol per litre between individuals — some players lose three times as much per litre as others — and total sweat rate varies again on top of that. A resting sodium reading of 140 mmol/L tells you homeostasis is working. It does not tell you whether you are a high-salt sweater replacing volume but not solute, which is the scenario that leads to cramping late in a match when serum concentration has been falling for an hour.
What we therefore will not do We will not prescribe a fixed sodium dose on the strength of a quiz or a resting blood panel, because neither one tells us what you lose. A during-session drink is the only intervention that makes sense here, and the dose has to scale with how much you actually sweat — which is the one thing a panel cannot report and you can. We would rather give you the composition and let you adjust the volume to your own rate than pretend a capsule solves a problem that varies threefold person to person and again day to day with temperature and work rate.
Sodium and magnesium at the start of a congested fixture period, then again at 8–12 weeks when the window compresses and training volume peaks. Vitamin D once in October and again mid-winter, because cutaneous synthesis is near zero at Swiss latitudes from autumn through early spring and a summer reading tells you nothing about February status. The retest interval closes the loop: it tells you whether the formula and the load are actually balanced, or whether something in your session rate or match schedule has moved faster than the model estimated.