# What to stock in a gym vending machine _Gym owners · 23 September 2026 · 3 min read · By The Map Your Gym Team_ > What sells in a gym vending machine, balancing healthy options against what members buy, restocking, payment, and what a 24-hour site needs. A gym vending machine is not a corner shop, and stocking it like one is the usual mistake. The people using it have just trained, or are about to. That narrows what they want considerably, and the narrowing is what makes it profitable. ## Start with drinks In most gyms drinks outsell food comfortably. Someone who has finished a session is thirsty before they are hungry, and a drink is an easier decision than a snack. - Water, in more than one size. It is the highest-volume line in most gym machines and the one that empties first. - Electrolyte drinks, for longer or hotter sessions. Worth stocking a no-sugar option alongside the standard one. - Protein shakes, ready-mixed and chilled. The single most-requested post-workout item in most gyms. - Energy drinks, including a sugar-free version. They sell, whatever anyone thinks of them. ## Then food, and less of it than you think - Protein bars — the core of the food offer. Stock two or three, not eight; range confuses more than it converts. - Nuts and dried fruit, for something that is not a bar. - A fast-carbohydrate option such as a flapjack or rice cake bar, for people training again later the same day. - One or two familiar chocolate or crisp lines. Yes, really — see below. ## Healthy or popular? This is where most gyms tie themselves in knots. An all-virtuous machine looks right and sells slowly; an all-confectionery one sells well and sits awkwardly with everything else you tell members. The workable answer is a machine that is mostly geared to training, with a small number of ordinary treats in it. Members are adults. Someone who wants a chocolate bar after a heavy session will buy one either from you or from the shop next door, and refusing the sale does not change the outcome — it just moves the money. Where you can be firm without friction is placement: put the training-related lines at eye level and the treats at the bottom. The mix sells itself. ## Restocking, and why empty rows cost more than they look An empty row does not just lose that sale. It teaches members the machine is unreliable, and they stop checking it — which is why a machine that runs empty for a fortnight rarely recovers its takings when refilled. Set restocking as a named responsibility on someone's rota rather than a job for whoever notices. Track which rows empty first for a month and re-weight the machine towards them: most gyms discover they are stocking twelve lines to sell four. Watch dates on anything chilled or protein-based. Ready-mixed shakes turn over quickly in a busy site and slowly in a quiet one. ## Payment Take contactless. A machine that only accepts coins in a gym — where most people arrive with a phone, a water bottle and nothing else — is a machine that will not sell, however well stocked. Card and phone payment is now the baseline expectation, and the fees are smaller than the sales you lose without it. ## If you run 24 hours An unstaffed site changes the calculation. The machine is your entire offer for part of the day, so range matters more and reliability matters much more — nobody is there to apologise or refund. Favour lines that keep well, avoid anything that suffers if the heating cycles overnight, and make sure the refund route is printed on the machine itself rather than assumed. Not decided on a machine yet? [Vending against a staffed counter](/blog/gym-vending-machine-or-staffed-snack-bar) covers that choice first. --- Read online: https://www.mapyourgym.co.uk/blog/what-to-stock-in-a-gym-vending-machine