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

The first time I packed food for Toby on the Appalachian Trail, I guessed. Three days in he was visibly running down, and I realized I had packed his at-home portions for a dog burning twice the calories. Figuring out what to feed your dog on a backpacking trip is not one decision, it is four: how many calories, which type of food, how much to pack, and how to feed it safely on trail. Get all four right and your dog finishes strong. Here is the plan we use now, after 900 miles of getting it wrong and then right.

How Many Extra Calories Your Dog Burns on Trail

A backpacking dog burns far more than its couch calories, and underpacking is the most common mistake. A resting dog needs roughly 20 to 30 calories per pound of body weight a day. An active dog on trail needs closer to 30 to 50 per pound, and cold nights, altitude, and the weight of a dog pack push that even higher.

The simple version: add a “trail tax” to your dog’s normal food. Increase by about 50 percent for moderate days, and up toward double for strenuous terrain, cold weather, or an off-leash dog that covers three miles for every one of yours. A quick cross-check is half a cup to a full cup of extra food per 20 pounds of body weight per day.

Rather than eyeball it, run your dog’s exact numbers through our dog hiking calorie calculator. It takes weight, hike type, and terrain and returns calories, portions, and pack weight, which is the math the rest of this guide depends on.

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, doubled	Heaviest	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 is heavy. One hiker measured eight meals at two cups each and got five pounds for a single weekend, which does not scale to months. 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. For the lightest load, dehydrated food cuts pack weight to about half of kibble, though it needs water to rehydrate.

Calorie density is the lever that actually saves weight. Honest Kitchen runs 485 calories per cup, while foods across our 197-food catalog range from 201 to 520 per cup. The dense end carries half the volume for the same energy. Most long-haul hikers run a mix: a digestible kibble base with dehydrated food layered in for weight and palatability. If you are weighing the two lightweight options 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 from kibble to a dehydrated or freeze-dried food is the single biggest weight cut available, often trimming 30 to 40 percent off the food bag for the same calories.

When to Feed: Trail Schedule and Bloat

How you time meals matters as much as what is in the bowl. Never feed a large meal right before or right after hard effort. Wait about an hour after a meal before hiking, and about 30 minutes after reaching camp before feeding, 60 minutes for large or deep-chested breeds prone to bloat.

Feed two to three set meals a day rather than free-feeding. Set meals let you watch your dog’s appetite, which is an early warning system on trail, and they keep your campsite cleaner and less interesting to wildlife. Borrow a trick from hunting-dog handlers: a smaller breakfast and a larger dinner, so your dog never works a climb on a full stomach.

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.

Protect the stomach by changing nothing on day one. Transition to your trail food over about two weeks at home, mixing in a little more each day, and confirm your dog actually eats it before you commit miles to it. Trial the toppers too, since a surprise rich treat can cause the exact GI upset you are trying to avoid.

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.