How much protein does my dog need per day?

It depends on weight, activity level, and life stage. A rough range is 1.0-1.5 g/kg for sedentary adult dogs, 1.5-2.0 g/kg for moderately active dogs, and 2.0-3.0+ g/kg for highly active or working dogs, with puppies needing more (2.5-3.5 g/kg) to support growth.

What is the AAFCO minimum protein requirement for dog food?

AAFCO sets a minimum of 18% protein (dry matter basis) for adult maintenance dog food and 22.5% for growth and reproduction (puppy) food. These are floors for a food to be labeled complete and balanced, not necessarily the ideal amount for every individual dog.

Is high protein bad for my dog's kidneys?

For dogs with healthy kidney function, no — the idea that high protein damages healthy kidneys has largely been walked back by veterinary research. Dogs with diagnosed kidney disease are the exception and are typically placed on a vet-prescribed reduced-protein diet.

Do senior dogs need less protein?

Not necessarily. Current veterinary thinking suggests older dogs may benefit from maintaining or even slightly increasing protein intake to help preserve muscle mass (countering age-related muscle loss called sarcopenia), rather than automatically reducing it as dogs age.

How do I compare protein percentage on a food label to my dog's actual needs?

Percentage on a bag doesn't tell you total grams consumed, since that depends on how much food your dog actually eats. Calculate your dog's gram-based protein target first, then check it against your food's protein percentage and your dog's daily portion size to see if it lines up.

Dog Protein Calculator: Daily Protein Needs by Weight (2026)

Q: Do working or highly active dogs need more protein?

Yes. Working dogs, sled dogs, and active sport or agility dogs typically need protein intake well above sedentary-dog baselines to support muscle recovery and sustained energy output, often in the 2.0-3.0+ g/kg range.

Why Protein Needs Aren't One-Size-Fits-All

Dog food bags love the phrase "high protein," but that framing skips the actual question: how much protein does your specific dog need? A sedentary 15-pound senior lapdog and a 70-pound working Border Collie have very different requirements — treating them the same because they're both "dogs" ignores weight, activity level, and life stage, which are the three factors that actually drive the number.

The Dog Protein Calculator works from those three inputs to give a daily protein target in grams, rather than relying on a percentage-on-the-bag shortcut that doesn't account for your dog's actual size or energy output.

The Baseline: AAFCO Minimums

The Association of American Feed Control Officials (AAFCO) sets minimum protein requirements for commercial dog food:

Life Stage	Minimum Protein (dry matter basis)
Growth (puppies) & reproduction	22.5%
Adult maintenance	18%

These are minimums, not targets — they're the floor a commercial food needs to clear to be labeled "complete and balanced," not necessarily the ideal amount for an individual dog's activity level.

Protein Needs by Activity Level

Activity Level	Approximate Daily Protein (grams per kg body weight)
Sedentary / low activity	1.0-1.5 g/kg
Moderate activity (daily walks, regular play)	1.5-2.0 g/kg
High activity (working dogs, active sport dogs)	2.0-3.0+ g/kg
Growing puppies	2.5-3.5 g/kg (higher due to tissue growth)

For a 30 kg (66 lb) moderately active adult dog, that works out to roughly 45-60 grams of protein per day — a useful sanity check against whatever a food label's guaranteed analysis is telling you in percentage terms.

Why Life Stage Changes the Number

Puppies need meaningfully more protein per pound of body weight than adults because they're building new muscle, organ tissue, and bone — not just maintaining what's already there.

Adult dogs at maintenance need enough protein to maintain lean muscle mass without excess, which for most healthy adult dogs sits comfortably above the AAFCO 18% minimum but doesn't need to be dramatically higher unless activity level says otherwise.

Senior dogs are a genuinely debated area — some veterinary research suggests older dogs may benefit from protein intake at or slightly above adult maintenance levels to help preserve muscle mass (a condition called sarcopenia), pushing back against the older assumption that seniors should automatically eat less protein. This is a conversation worth having with your vet rather than assuming either direction is automatically right for your specific dog.

Working and highly active dogs — search-and-rescue, sled dogs, agility competitors — often need protein intake well above sedentary-dog baselines to support muscle recovery and sustained energy output.

Converting Percentage on a Bag to Grams for Your Dog

Food labels list protein as a percentage of the food, not grams per day, which is exactly why it's hard to compare directly to your dog's actual needs. Two dogs eating the same 30%-protein food can end up with very different total daily protein intake depending on how much food they actually eat — a small dog on a small portion of a 30% food might undershoot their gram target, while a large dog on a big portion of the same food easily clears it.

The Dog Protein Calculator sidesteps this by calculating a gram-based target directly from weight, activity, and life stage — then you can check that target against your specific food's protein percentage and daily feeding amount using the Dog Food Calculator.

Can Too Much Protein Be a Problem?

For healthy dogs with normal kidney function, moderately high protein intake isn't inherently harmful — the old myth that high protein damages healthy kidneys has largely been walked back by veterinary research. The exception: dogs with existing kidney disease are typically put on a vet-prescribed reduced-protein diet, because compromised kidneys process protein byproducts differently. If your dog has a diagnosed kidney condition, follow your vet's specific dietary guidance rather than a general protein calculator.

Common Mistakes People Make

Comparing food labels by percentage alone. A 35%-protein food fed in small portions can deliver less total protein than a 25%-protein food fed in larger portions — grams per day is the number that actually matters for your dog.

Assuming senior dogs automatically need less protein. Current veterinary thinking leans toward maintaining or even slightly increasing protein for seniors to help preserve muscle mass, not automatically cutting back.

Ignoring activity level entirely. A weekend-warrior dog that gets an intense hike once a week has different needs than one that's genuinely high-energy every day — occasional activity spikes don't require restructuring the daily baseline the way sustained high activity does.

Assuming "high protein" marketing equals "right amount for my dog." Marketing percentages are a starting point for comparison, not a substitute for calculating what your specific dog's weight and activity level actually call for.

Recommended Tools

Dog Protein Calculator — Get a daily protein target in grams based on weight, activity, and life stage.
Dog Food Calculator — Cross-check your protein target against actual portion sizes for your dog's food.
Dog Calorie Calculator — Protein needs work alongside total calorie needs, not instead of them.
Dog RER/Kcal Calculator — The vet-referenced formula behind energy requirement calculations, if you want the underlying math.
Dog Weight Calculator — Confirm your dog's healthy weight range before calculating protein needs off current weight.