Dog food for a border collie
The right food for a border collie depends far more on how active your individual dog actually is than on the breed's reputation for energy. A collie doing genuine working hours on a farm needs meaningfully more calories and fat than a collie who has two walks a day and lives as a family pet, even though both are the same breed.
Feeding a Border Collie
A medium breed
An adult Border Collie typically weighs 14–20 kg, so a healthy Border Collie eats a moderate amount compared with other breeds. Every feeding guide on a bag is written per kilo of body weight, not per breed — start there, then adjust to the dog in front of you.
Life stage
A medium breed is usually done growing at ~12 months, which is roughly when a puppy food has finished its job. With a typical lifespan of 12–15 years, there is a long adult stretch in the middle; switch to a senior food when your vet thinks it is worth it rather than on a birthday.
A high-energy dog eats like one
Border Collies sit at the top end for energy, and a dog working through a couple of hours of real exercise a day burns through the feeding guide faster than a dog on a short stroll. Feed to the dog's condition, not to the middle of the range on the bag.
Mealtimes can do some of the work
A breed that struggles to settle on its own gets more out of a meal that takes effort — a lick mat, a snuffle mat or a puzzle feeder using part of the daily ration rather than extra food on top of it.
How much should a Border Collie weigh?
Adult 14–20 kgfully grown at ~12 months
| Age | Stage | Typical weight | Of adult size |
|---|---|---|---|
| 8 weeks | Just home | 2.2–3.1 kg | 15% |
| 3 months | Young puppy | 3.5–5 kg | 25% |
| 6 months | Growing fast | 7–10 kg | 50% |
| ~12 months | Fully grown | 14–20 kg | 100% |
A guide, from the same rule of thumb our puppy growth predictor uses — each age is that share of the way to maturity for a medium breed. Puppies grow fastest early, so a real puppy usually sits a little above the middle rows. Weigh yours and ask your vet if the number worries you.
Complete dog foods that suit a Border Collie
Complete foods from our range, matched to a Border Collie's size band and what the breed typically needs. Stock levels and delivery dates are live on each product.
Burns Adult/Senior Weight Control Chicken and Oats
A low-fat weight control dry food for adult and senior dogs, oat-based
£35.99
Simpsons Dog Sensitive Lamb Potato
A grain-free lamb and potato dry food for dogs with sensitive skin or digestion
From£17.05
Arden Grange Adult Dog Calming Turkey Sweet Potato
A grain-free complete turkey food with added L-tryptophan and chamomile
From£16.99
Forthglade Cold Pressed Natural Turkey
Cold-pressed turkey kibble for dogs from 2 months, soft enough to mix with water for young pups
£45.99
Forthglade Cold Pressed Grain Free Salmon
Cold-pressed grain-free dry food for dogs, built on fresh and dried salmon
From£16.99
Forthglade Cold Pressed Grain Free Duck
Cold-pressed grain-free duck food with fruit and botanicals, in two bag sizes
From£16.99
Forthglade Cold Pressed Grain Free Chicken
Cold-pressed grain-free chicken food with fruit and botanicals, in three bag sizes
From£16.99
Forthglade Cold Pressed Grain Free Turkey
Grain-free cold-pressed turkey kibble for dogs, gentle on sensitive stomachs
£69.69
Forthglade British Classics Chicken Family Lunch
Complete Forthglade wet dog food with 75% chicken in a 395G tray
£2.45
Harringtons Puppy Turkey & Rice
Complete turkey puppy food with 30% protein and feeding bands by adult weight
£6.49
Harringtons Just 6 Dry Dog Food Lamb
Grain-free lamb dry dog food in 2KG and 12KG sizes, with size-specific formulas
From£13.99
Burns Puppy Original Lamb & Rice
Complete Burns lamb and rice puppy food in a 2KG bag for up to 12 months
£14.99
Match the food to the activity, not the breed name
Border collies have a well-earned reputation as one of the most energetic working breeds, and a food formulated for working or active dogs, with a higher fat and protein content for sustained energy, genuinely suits a collie doing real herding or agility hours.
The trap is feeding that same higher-energy food to a pet collie whose day is a couple of walks and some garden time. Feeding for the breed's reputation rather than your dog's actual activity is one of the more common ways collies end up carrying extra weight despite owners thinking they are feeding 'correctly' for the breed.
Weight and joints matter for an active breed
Border collies that are active and lean tend to hold up well, but extra weight puts real strain on joints in a breed built for speed and agility over years of work or play. Keeping an eye on body condition and adjusting portions as activity changes through the year — more in winter if walks shorten, less if they do not — helps avoid this creeping up unnoticed.
A joint-support supplement is worth considering for an older or particularly active collie, though it is not something every collie needs — it is more relevant once a dog is getting on in years or has a physically demanding routine.
What to actually look for on the bag
For a genuinely active or working collie, a food with a higher fat percentage and named meat protein, often marketed for active or working dogs, matches their energy needs well. For a collie living as a family pet with moderate exercise, a standard complete adult food is usually the better fit, adjusted by portion rather than by choosing the highest-calorie option available.
Whichever route suits your dog, the feeding guide on the bag is only a starting point — a collie's actual body condition, checked by feel rather than by eye, should decide whether you feed more or less than the guide suggests, since working and pet collies of the same breed can have very different needs.
Common questions
- Do all border collies need a high-energy working dog food?
- No. A working dog food suits a collie doing genuine physical work such as herding or serious agility training, but a pet collie with moderate daily walks generally does better on a standard adult food, portioned to their actual activity rather than the breed's reputation for energy.
- Are border collies prone to weight gain?
- They can be, particularly if fed for their reputation as a high-energy breed rather than their actual exercise level. A collie living a fairly ordinary pet life on a working-dog-level food, without matching activity, is a common route to unwanted weight gain.
- Should I give my border collie a joint supplement?
- It is worth considering for an older collie or one doing particularly demanding activity, but it is not something every collie automatically needs. If you are concerned about their joints, it is worth raising with your vet rather than adding a supplement speculatively.
- How much should I feed my border collie?
- Start with the feeding guide on your chosen food based on your dog's weight and activity level, then adjust based on their body condition rather than a fixed amount. An active working collie and a pet collie of the same weight can need noticeably different amounts.
Related
Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.