Backpacking Meal Planning: What to Eat on the Trail
Feeding yourself on a multi-day backpacking trip is a different problem to cooking at a campsite. Every gram you carry, you carry uphill, so backpacking food planning is really a balancing act between calories, weight, palatability and how much faff you can be bothered with at the end of a long day. Get it right and dinner is one of the best parts of the trip; get it wrong and you're either running on empty by day three or hauling far more weight than you needed to.
How many calories do you actually need?
Backpacking burns significantly more energy than an ordinary day, and the number varies a lot with terrain, pack weight, temperature and your own size and fitness. As a general guide, most backpackers need somewhere in the region of 2,500 to 4,500 kcal per day, with the lower end covering gentler trails in mild weather and the higher end covering mountainous terrain, heavy packs, or cold conditions where your body burns extra energy just staying warm. Winter trips and expedition-style routes can push past that. There's no need to weigh this out precisely — the practical approach is to pack calorie-dense food, eat more than you think you need, and pay attention to how you feel; persistent fatigue, irritability or feeling the cold more than usual are classic signs of under-fuelling on the trail.
Lightweight food categories
The food that makes sense for backpacking is chosen for calories and weight per gram, not just taste, since every extra hundred grams in your pack adds up over a multi-day route.
- Freeze-dried meals. Pouched meals that just need boiling water added are the simplest option: very light because almost all the water has been removed, quick to prepare, and produce minimal washing-up. They cost more per meal than cooking from scratch, but the convenience is hard to beat after a long day.
- Dehydrated food you assemble yourself. Home-dehydrated or shop-bought dried ingredients — pasta, rice, couscous, dried vegetables, stock cubes, dried meat or textured vegetable protein — let you build your own meals for less money than pre-made pouches, at the cost of a bit more preparation before you leave.
- No-cook options. Useful for lunches, emergency food, or trips where you want to save fuel: things like flatbreads, cured meats, hard cheese, oatcakes, and instant foods that only need soaking rather than boiling.
- Calorie-dense staples. Nuts, dried fruit, seeds, chocolate, peanut butter, cereal bars and pasta are all useful because they pack a lot of energy into a small, light package — these fill in the gaps around your main meals and are ideal for snacking on the move.
A quick word on stoves
Your stove choice affects both your food plan and your pack weight, though the details of choosing one are covered elsewhere — briefly, the main options are canister gas stoves (compact, fast-boiling, and the most common choice for UK backpacking, though performance drops in cold weather and empty canisters need carrying out), meths or alcohol stoves (very light and simple, but slower to boil and less efficient, so you carry more fuel for a longer trip), and solid fuel tablet stoves (minimal and cheap, popular for ultralight setups, but slow and with a distinct smell). Whichever you choose, plan your fuel quantity around how many hot meals and hot drinks you actually want each day, not just the length of the trip.
Planning food weight for the trip
A useful rule of thumb for lightweight backpacking is to budget roughly 600–900 grams of food per person per day, aiming for meals that average around 100–130 kcal per 100g so the weight-to-energy ratio stays favourable. Freeze-dried and dehydrated meals, nuts, and dried fruit sit comfortably in that range; fresh food, tins and anything with a lot of water content will drag the average down fast, which is why they're best kept for the first day out, before your pack has had a chance to get any lighter.
To plan a trip, multiply your target daily weight by the number of days, then check the total against your pack's capacity alongside your other gear. For anything beyond about five to seven days, carrying the entire trip's food from the start becomes impractical for most people, which is where resupply comes in.
Water purification basics
Food planning and water planning go together, since you need clean water both to drink and to rehydrate meals. The three common approaches are filtration (a pump or squeeze filter that physically removes bacteria, protozoa and sediment — reliable and doesn't affect taste, though it needs occasional cleaning and won't remove viruses, which is rarely a practical concern in the UK), chemical treatment (chlorine dioxide or iodine tablets or drops — light and simple, but slower, as they typically need 30 minutes or more to work, and can leave a faint taste), and boiling (bringing water to a rolling boil for at least a minute kills essentially everything, and needs no extra kit beyond your stove, at the cost of fuel and time). Many backpackers combine methods — a filter as the main approach with chemical tablets as a lightweight backup. Always take water from a moving source where possible, upstream of livestock and farmland, and purify it regardless of how clean it looks.
A note on foraging in the UK
Wild food can supplement a trip, but foraging without real expertise carries genuine risk — several poisonous plants and fungi closely resemble edible ones, and misidentification can be dangerous. It's not something to lean on as a food-planning strategy. That said, a few UK species are widely and safely recognised even by non-experts: wild garlic (with its unmistakable smell, found carpeting damp woodland in spring) and blackberries (common on hedgerows from late summer) are both commonly foraged as a seasonal extra rather than a meal replacement. Beyond well-known, easily identified plants like these, treat foraging as a hobby for another day, not part of your trip's calorie budget.
Practical tips
- Repackage everything before you leave. Strip food out of bulky retail packaging and into resealable bags, decanting instructions or cooking times onto a small label if needed. This saves real weight and bulk, and cuts down on rubbish you have to carry out.
- Portion meals in advance. Bagging up each day's food separately makes it easy to grab exactly what you need without digging through a week's supply, and helps you keep track of whether you're eating enough as the trip goes on.
- Plan a resupply point on longer trails. For routes of more than about a week, identify a town, village shop or post office near the trail where you can restock or collect a parcel you've posted ahead — this keeps your starting pack weight manageable and means fresher food partway through the trip.
- Carry a small margin. An extra day's emergency food and a way to purify more water than planned is cheap insurance against a delayed return.
Good backpacking food planning comes down to matching calories to effort, keeping weight per day in a sensible range, and not overcomplicating water treatment or cooking. Get the basics right and meals become one of the highlights of the day rather than a chore to get through.