A well-planned 7-day backpacking food bag targets 700–800g of food per day, providing 2,800–3,500 calories. The critical constraint is calorie density: every food item should deliver at least 100 calories per ounce (3.5 kcal/g) or it is carrying dead weight. Hit that threshold consistently and 7 days of food fits in under 5.5 kg — manageable in any 55–65L pack without sacrificing nutrition.
How Many Calories Do You Actually Need for 7 Days on Trail?
Caloric needs vary significantly by hiker weight, trail gradient and pack weight, but a reliable working figure is 3,000–3,500 kcal/day for moderate mountain terrain with a 10–14kg pack. Lighter hikers (under 65kg) on less demanding trails may function on 2,500–2,800 kcal. Hikers over 80kg on demanding Alpine-style terrain may need 4,000+ kcal daily by days 4–7 as cumulative fatigue increases energy expenditure.
Day 1 and 2 are typically the lowest-calorie days: muscle glycogen is full, motivation is high and the body is less fatigued. Days 5–7 see the highest caloric demands as glycogen depletion becomes chronic and protein catabolism increases. Build your plan with slightly more food in the second half of the week — not a strict ration but a psychological and physiological advantage. For a comprehensive breakdown of daily caloric needs by terrain type, see our backpacking food weight guide.
The Complete 7-Day Meal Plan
This plan targets 3,000–3,200 kcal/day at approximately 730–800g food weight per day. Adjust olive oil additions upward to increase calories without significant weight gain (olive oil provides 884 kcal/100g — the highest calorie density of any common trail food).
| Day | Breakfast | Trail Snacks | Dinner | kcal |
|---|---|---|---|---|
| 1 | Oats + PB + dried blueberries | Flour tortilla + hard cheese + salami | Mountain House chicken & rice | 2,900 |
| 2 | Granola + powdered whole milk | Trail mix + jerky + dark chocolate | Instant mash + olive oil + salami | 3,200 |
| 3 | PB oats + whey protein sachet | 2x energy bars + walnuts + dried mango | Good To-Go Thai curry + rice noodles | 3,100 |
| 4 | Instant grits + bacon bits + hot sauce | Crackers + hummus powder + walnuts | Ramen + PB powder + sesame oil | 3,100 |
| 5 | Muesli + coconut milk powder | Parmesan + crackers + beef jerky | Freeze-dried beef stew + mash | 3,000 |
| 6 | Chia pudding (pre-soaked) + honey | Stroopwafels + nut butter squeeze packs | Tortillas + refried bean powder + hot sauce | 3,200 |
| 7 | Reserve oats + instant coffee | Last energy bar + remaining nuts | Couscous + olive oil + tuna packet | 2,800 |
Total: approximately 21,300 kcal across 7 days, carried food weight approximately 5.1–5.5kg depending on freeze-dried meal brand. This is a calorie-surplus plan for most hikers — adjust by reducing snack portions on easier days.
Best Calorie-Dense Foods for a 7-Day Food Bag
Calorie density matters more for 7-day trips than shorter outings because every 100g of food weight over 5 days compounds into a significant burden. Foods above 500 kcal/100g:
- Olive oil: 884 kcal/100g — add to every hot dinner, invisible in flavour, transforms calorie density
- Coconut oil: 862 kcal/100g — good for cooking, solid at low temperatures (easier to pack)
- Peanut butter: 588 kcal/100g — versatile, protein-containing, available as squeeze packs
- Salami / pepperoni: 425–480 kcal/100g — shelf-stable for 7 days unrefrigerated, high sodium
- Hard cheese (parmesan, aged cheddar): 380–420 kcal/100g, stable for 5–7 days unrefrigerated
- Dark chocolate 85%: 598 kcal/100g, anti-inflammatory flavanols, mood-boosting properties on day 5+
For a ranked guide to the top calorie-per-gram foods available, our high-calorie backpacking food guide for 2026 covers the full list with brand recommendations.
Cooking Equipment and Water Strategy for 7 Days
The BRS-3000T Ultralight Stove (25g) paired with a 550ml titanium pot covers all cooking needs in this plan. For 7 days with two hot meals daily, carry one 230g isobutane canister (sufficient for 8–10 boils at moderate altitude). Water filtration via the Katadyn BeFree 1.0L adds 37g to your pack and handles the volume demands of cooking plus drinking for a solo hiker.
For carrying 7 days of food plus gear, a 55–65L pack is the right volume. The Gossamer Gear Mariposa 60L at 650g fits this food bag with full equipment without the pack becoming unwieldy. For freeze-dried meal brand comparisons, see our freeze-dried meals ranking for 2026 and our guide on making your own dehydrated trail meals to reduce the cost of a 7-day food bag by 30–50%.
Frequently Asked Questions
Is 800g of food per day enough for a demanding 7-day hike?
For most hikers on moderate terrain with a 10–14kg pack, 700–800g per day at 3.5+ kcal/g calorie density delivers 2,450–2,800 kcal — adequate but not generous. Add olive oil or coconut oil to every dinner (15–30g/meal adds 130–265 kcal at 5–10g of extra weight) to increase caloric intake without meaningful weight penalty. Large-framed hikers over 85kg on demanding terrain should target 900–950g/day.
How do I reduce food weight below 700g per day?
Focus on calorie density rather than portion reduction. Replace any food below 3.5 kcal/g with an alternative above 5 kcal/g. Common low-density offenders: crackers (~430 kcal/100g — swap for higher-fat nut crackers at 520+), fresh fruit in the first two days (70–80 kcal/100g — swap for freeze-dried or dried), and cooking oil sachets that are mostly packaging by weight. Replacing 200g of crackers with 120g of peanut butter saves 80g and adds 100 kcal.
Should I include a resupply point for a 7-day trip?
For trails with a convenient resupply opportunity at day 3–4 (a town, trailhead or post office box), splitting the food bag saves the pack weight penalty of carrying 5+ days of food from day one. The first day with a 5.5kg food bag is the most physically demanding — especially for the knees on steep descents. If a mid-trip resupply is possible, use it.
What are the best freeze-dried meal brands for variety on a 7-day trip?
Good To-Go consistently rates highest for flavour quality in 2026, with genuine ingredients and low sodium versus alternatives. Mountain House offers the widest range and most reliable calorie counts. Backpacker's Pantry covers good vegan options. Buying a mixed selection from at least two brands prevents palate fatigue — eating the same brand for 14 consecutive dinners is a genuine morale problem on longer trips.
How do I keep food fresh on the first two days of a 7-day trip?
Hard cheese (parmesan, aged cheddar) stays safe unrefrigerated for 5–7 days in temperate conditions. Salami and cured meats are shelf-stable indefinitely. Fresh food like fruit, real bread or lunch wraps should be consumed on day 1. If carrying a fresh protein source like hard-boiled eggs for day 1, keep them in an insulated bag with a small ice block — they are excellent calorie-dense trail food when eaten within 24 hours.