Every thru-hiker eventually faces the resupply question: buy food in trail towns, mail yourself boxes, or mix both. The answer shapes your budget, your pack weight, and your town stops, and getting it wrong means either carrying too much food or arriving hungry in a town with one expensive shop.

Buying along the trail is the simplest strategy and the default for most hikers. You walk into a grocery store, buy four to seven days of food, and walk out. Selection varies wildly, from full supermarkets to a petrol station with instant noodles, so research each town's options before you rely on them, and accept that trail-town prices run higher than home.

Mailing food boxes gives you control over diet, allergies, and cost, since you buy in bulk at home. The trade-off is logistics: boxes must be timed to post offices or hostels with limited opening hours, postage adds up, and a box that arrives late strands you. Label boxes clearly, include your expected arrival date, and always carry a day of emergency food.

The hybrid plan works best for most hikers: buy in towns with good supermarkets and mail boxes only to remote stretches with poor shopping. That keeps postage costs down while covering the gaps where buying fails. Mark your resupply points on a map before starting, and stay flexible, since pace changes and towns close.

Food weight and calories drive the whole plan. Aim for roughly 125 calories per ounce of food carried, favouring calorie-dense items like nuts, nut butter, olive oil packets, and dried meals. A typical hiker needs 3,000 to 5,000 calories a day on a long trail, far more than a normal diet, and under-eating is the most common beginner mistake.

Variety matters more than hikers expect. Eating the same bars and noodles for weeks leads to food fatigue, where you stop eating enough even though you have food. Rotate flavours, pack a few luxury items like spices or hot sauce, and treat town meals as morale as much as nutrition.

Timing your boxes takes practice. Post a box two to three weeks before you expect to arrive, confirm the hold policy of the receiving business, and include a note with your name and arrival date. If you fall behind schedule, call ahead and ask them to hold it longer, since most trail businesses are used to this.

Cost comparison surprises many hikers. Buying in town looks expensive per item, but postage, packaging, and bulk-buy waste often make mailed boxes similar in total cost. The real savings from boxes come from dietary needs and bulk staples, not from beating supermarket prices on everything.

Dietary restrictions change the calculation. Vegans, coeliacs, and hikers with allergies often find trail-town options too limited and rely more on boxes. If that is you, plan boxes early, test your trail meals at home, and carry a list of safe staples you can find in small shops as backup.

Bounce boxes are an optional extra: a box you forward from town to town containing spare gear, maps, chargers, and seasonal clothing. They suit hikers who need gear swaps, like exchanging a warm jacket for a lighter one, but they add cost and errands, so many hikers skip them entirely.

Keep a resupply notebook or spreadsheet as you go. Record what you bought, what you actually ate, and what you threw away, because that data sharpens every later resupply. Hikers who track this waste less food, carry less weight, and spend less money by the second half of a trail.

Resupply is a skill that improves with every town stop. Start simple, buy in towns where you can, mail boxes only where you must, and adjust as your appetite, pace, and preferences become clear. The trail teaches you what you need, one resupply at a time.