Best puppy food for a Jack Russell
A Jack Russell puppy needs a small-breed puppy food, formulated with the higher energy density and smaller kibble size that suit a fast-metabolising terrier with a small mouth. Jack Russells are lively, muscular little dogs, and a food built for a small breed accounts for both their proportionally higher energy needs and the practical matter of a kibble they can actually eat comfortably.
Why small-breed formulation matters here
Smaller dogs have a faster metabolism relative to their size than larger breeds, and Jack Russells in particular are an energetic, muscular terrier that burns through calories readily. A small-breed puppy formula is typically more energy-dense per gram than a standard or large-breed formula, which means a Jack Russell puppy can get what they need from a sensibly sized portion rather than an oversized one.
Kibble size matters too. A large-breed kibble can be awkward or off-putting for a small jaw, and a properly sized small-breed kibble is easier for a Jack Russell puppy to pick up and chew comfortably from the start.
What to look for on the pack
Check that the food is labelled for small or toy breed puppies, or simply puppies in general with an appropriate kibble size, and that it states it is a complete food. Follow the feeding guide based on your puppy's current weight, adjusting for body condition as they grow rather than sticking rigidly to the chart.
Jack Russells can be prone to putting on weight if overfed, despite their high energy levels, particularly once they are neutered and their metabolism slows slightly — so measuring portions rather than free-feeding is worth establishing as a habit from puppyhood.
What we stock
Our puppy food range includes small-breed formulas suited to a Jack Russell's size and energy needs, alongside training-sized treats appropriate for a small mouth. What is shown in the grid above reflects what is currently available to order.
If your puppy seems to be gaining weight quickly despite an appropriate feeding amount, or seems unusually lethargic for this normally very energetic breed, mention it to your vet at a routine check-up rather than adjusting the diet alone.
Foods that suit this breed
Everything below is in stock with us, priced with delivery worked out, and packed and posted by hand in the UK.
Pedigree Tasty Minis Puppy Treats Chewy Cubes with Chicken
Soft chewy puppy training treats with 13% chicken and added calcium, 125g
£2.25
Forthglade Complete Puppy Chicken with Liver Grain Free — 18 x 395g Trays
Sold as a case: 18 x 395g trays. A complete grain-free wet food for puppies, built on 71% chicken and 4% chicken liver
£35.89
Harringtons Puppy Turkey & Rice
Complete turkey puppy food with 30% protein and feeding bands by adult weight
£6.49
James Wellbeloved Grain Free Puppy/Junior Dry Dog Food Turkey & Veg
Grain-free turkey and potato kibble for puppies and junior dogs, evenly balanced recipe
£12.75
Wagg Puppy Treats
Puppy Treats in a 120G pack, with 23.2% protein and 7% fat and full label detail
£1.49
Burns Puppy Junior Original Chicken Rice
A complete puppy and junior food with dried chicken 31% and controlled fat at 15%
From£14.99
Lily's Kitchen Puppy Chicken Recipe — 6 x 400g Tins
Sold as a case: 6 x 400g tins. Complete 400G wet puppy chicken recipe with 67% fresh chicken
£22.79
Pooch & Mutt Puppy Bite Size Beef Jerky
Bite-size beef jerky training treats for puppies, scaled by dog size
£3.99
Whimzees Puppy
Softer dental chews for puppies over three months old, grain free and gluten free
£7.99
Burns Grain Free Puppy Duck Potato
Grain-free duck and potato puppy food with a prebiotic, for starting a new litter on a novel protein
From£16.49
Lily's Kitchen Puppy Recipe Chicken — 10 x 150g Trays
Sold as a case: 10 x 150g trays. Complete 150G puppy chicken recipe with 67% chicken and salmon oil
£16.89
Common questions
- How much should I feed a Jack Russell puppy?
- Follow the feeding guide on the specific small-breed puppy food you are using, based on your puppy's current weight, and adjust for body condition as they grow. Your vet can advise if you are unsure whether your individual puppy is getting the right amount.
- Do Jack Russells need a special diet?
- Not a special diet as such, but a small-breed formula with an appropriately sized kibble and energy density suits their fast metabolism and small jaw better than a large-breed or generic formula. Beyond that, a good quality complete puppy food is generally all this breed needs.
- When should a Jack Russell puppy move to adult food?
- Small breeds typically reach adult size sooner than larger dogs, often moving to adult food from around ten to twelve months, though this varies by individual and by the specific food's own guidance. Check the pack or ask your vet if you are unsure.
- Are Jack Russells prone to weight gain?
- Yes, despite their energy levels, Jack Russells can gain weight if overfed, particularly once neutered. Measuring portions against the feeding guide rather than free-feeding, and checking body condition regularly, helps keep this in check from puppyhood.
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.