What to Feed Your Dog on a Multi-Day Backpacking Trip

Figuring out what to feed your dog on a backpacking trip involves four decisions: how many calories, which type of food, how much to pack, and how to feed it safely on trail. The plan below gives you a framework for each one.

How Many Extra Calories Your Dog Burns on Trail

A backpacking dog’s energy needs can differ substantially from its home needs, but there is no universal trail multiplier. Start with RER and MER, then account for work and monitor the individual dog.

AAHA’s energy-requirement guide uses RER = 70 × body weight in kg^0.75, then multiplies RER by a life-stage or work factor. Its working-dog ranges are broad starting guidelines: 1.6-2.0 for light work, 2.0-5.0 for moderate work and 5.0-11.0 for heavy work. AAHA says to adjust intake by monitoring body weight and body condition.

Use our dog hiking calorie calculator for a starting estimate based on weight, hike type and terrain. Its trail modifiers are internal planning heuristics, not clinically validated multipliers or a prescription.

The Four Ways to Feed a Dog on a Multi-Day Trip

Your food type is a trade between weight, water, and your dog’s stomach. There are four realistic options, and most thru-hikers land on the last one.

Option	Weight	Needs water?	Best for
Regular kibble	Varies by recipe	No	Short trips, town resupply
High-calorie performance kibble	Lighter per calorie	No	Dry routes, easy resupply
Dehydrated dog food	Light	Yes (cups/meal)	Long trips, water-rich routes
Mix: kibble base + dehydrated	Medium	Some	Most thru-hikes

Plain kibble works but can be bulky. High-calorie performance formulas like Purina Pro Plan Sport pack more energy per cup with no water needed, which makes them strong for dry sections and town buying. Honest Kitchen Whole Grain Chicken is another option when its preparation requirements fit the route, but dehydrated food is not automatically half the carry weight of kibble. Compare the exact foods by calories per kilogram.

Calorie density is the lever that determines food weight. Honest Kitchen Whole Grain Chicken lists 485 calories per dry cup, but cups measure volume rather than mass. Its published package figures work out to about 4,280 kcal/kg. Compare that mass-based figure with the exact alternative before claiming a carry-weight saving. If you are weighing the two formats head to head, our dehydrated vs. freeze-dried dog food breakdown covers the cost and water math. For high-calorie picks specifically, see our best dog food for active dogs guide.

How Much Food to Pack (and What It Weighs)

Pack weight is the number that humbles everyone, so size it with a table, not a guess. Once you know the daily portion, multiply by trip length and add a buffer. The weight adds up fast, which is the whole argument for calorie-dense food.

Dog weight	Daily cups (trail)	5-day total	Kibble weight
20-30 lb	1.5-3	9-18 cups	~2.25-4.5 lb
40-50 lb	3-5	18-30 cups	~4.5-7.5 lb
60-80 lb	4.5-8	27-48 cups	~6.75-12 lb

Always pack your full trip length plus one to two extra days. A late resupply, an added zero day, or a wrong turn should never mean a hungry dog. A well-conditioned dog can carry its own food too: a properly fitted dog pack holds about 10 to 15 percent of body weight, so a 60-pound dog can shoulder 6 to 9 pounds and take that load off your back.

Switching formats does not guarantee a fixed weight reduction. Compare the exact foods by kcal/kg, then account for preparation water and the amount your dog actually needs.

When to Feed: Trail Schedule and Bloat

The American College of Veterinary Surgeons describes GDV as multifactorial and associates it with rapid ingestion of large meals, one large daily meal and a deep chest. It does not give a universal one-hour or two-hour exercise interval.

Smaller meals can avoid one large daily feeding and make it easier to watch appetite on trail. Ask your veterinarian for meal size and timing guidance for your dog, especially for a large, deep-chested or otherwise high-risk dog.

Hydration ties into all of it. A dog eating dehydrated food drinks more by design, which helps, but offer water at every stream and dose rehydrated meals with enough water that they go down easy.

Packing, Portioning, and Bear-Country Storage

Good portioning at the kitchen table prevents bad surprises on the trail. Pre-measure every meal into a labeled zip-top bag, or vacuum-seal them to shrink the load and lock out moisture through humid trail towns. Pre-portioning also lets you count remaining days at a glance instead of digging through a loose bag.

Storage is a safety issue, not just tidiness. In bear country, treat your dog’s food exactly like your own:

• Store it in a bear canister, an Ursack, or a proper bear hang well away from camp.
• Never leave food in your dog’s pack or in the tent overnight.
• Pull any smell-proof liner bags and stash them with the food, not where you sleep.

A lightweight collapsible silicone bowl clips to the outside of your pack and saves interior space. It is a small thing that makes set meals quick at camp.

Picky Eaters and Stomach Safety

The trail can turn a reliable eater picky, and a new food can turn a strong dog sick, so plan for both. Appetite loss in the first days is common and usually sensory overload, not illness. Hand-feed in the tent, add a high-value topper like freeze-dried liver, a spoon of peanut butter, or a splash of bone broth, and keep meals small and frequent. If your dog skips food for more than 48 hours or seems off, get to a vet.

Avoid making an untested food change on day one. AAHA says a 4- to 7-day diet adjustment may reduce negative gastrointestinal responses, but your veterinarian may recommend a different transition for your dog. Confirm the dog accepts the food before relying on it during a trip.

Two safety lines worth holding: skip grain-free or raw diets without a vet-diagnosed allergy, given the cardiovascular concerns around them, and never feed your dog your own dehydrated meals, which often hide garlic, onion, or heavy sodium. When in doubt about your specific dog, ask your vet before the trip, not on it.