Toppers are the compromise between a complete commercial diet and cooking for your dog. Used sensibly they are harmless and sometimes genuinely useful. Used carelessly they unbalance a diet and produce a dog who holds out for better offers.
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The 10 percent rule
Anything added to a complete and balanced diet should stay under 10 percent of daily calories. Above that, you are meaningfully diluting a formulation that was carefully balanced, and you start affecting the nutrient ratios.
For a 20kg dog eating around 1,000 kcal a day, that is 100 kcal — roughly:
- 30g of cooked chicken breast, or
- Half a small tin of sardines, or
- Three tablespoons of plain tinned pumpkin, or
- 25g of cheese
Subtract it from the meal rather than adding it on top. This is the step people skip, and it is how a dog gains three kilos in a year on “just a spoonful”.
When a topper earns its place
Encouraging a dog who genuinely will not eat. Post-illness, post-surgery, or an older dog with a fading sense of smell. Here the priority is calories in, and a topper is a tool.
Increasing water intake. Adding warm water or a wet food topper is useful for dogs prone to urinary problems, and for older dogs generally.
Slowing eating. A slightly sticky topper mixed through kibble slows a gulper.
Hiding medication. Though a purpose-made pill treat usually works better.
Greenies Pill Pockets
Soft treats with a hollow centre for tablets. The trick that makes them work: give one empty, then the loaded one, then another empty one — a dog expecting an empty one swallows the middle one without inspecting it.
Adding specific nutrients, on veterinary advice — omega-3 for joints or skin, or fibre for digestive or anal gland issues.
Good topper options
Sardines in spring water. Omega-3, highly palatable, cheap. Roughly a quarter tin for a medium dog, once or twice a week.
Plain cooked chicken, turkey or white fish. No seasoning, no bones.
Plain tinned pumpkin. Fibre, very low calorie, useful for both loose and firm stool problems. Not pie filling.
Cooked egg. Around 70 kcal for a whole one, so half for a small dog.
Green beans or courgette, plain and cooked. Adds volume for almost no calories, which is useful on a weight-loss plan.
Plain unsweetened yoghurt or kefir, a spoonful, if your dog tolerates dairy. Check for xylitol.
Blueberries, fresh or frozen.
Wet food from the same brand as the kibble, which at least keeps the formulation philosophy consistent.
Warm water or unsalted bone broth, which is more about aroma and hydration than nutrition.
What to keep out
- Onion, garlic, leeks, chives — in any form, including stock and gravy
- Grapes, raisins, sultanas, currants
- Xylitol, including in peanut butter
- Cooked bones
- Fatty meat, bacon, sausages — pancreatitis risk
- Salty or seasoned leftovers
- Anything with added sugar
- Raw meat, if anyone in the household is immunocompromised or very young
The fussy-eater trap
This is the real risk, and it is behavioural rather than nutritional.
A dog hesitates over their dinner. The owner adds chicken. The dog eats. Next meal, the dog waits. The owner adds more chicken. Within a fortnight the dog has learned that refusing produces an upgrade — which is a perfectly rational thing to learn.
How to avoid it:
- Add the topper at the start of the meal, every time, as part of how the meal is made — not as a response to refusal
- Keep it consistent. The same topper, mixed through, rather than a different exciting thing each day
- Mix it in thoroughly rather than sitting it on top, so the dog cannot eat the topper and leave the kibble
- If your dog refuses, lift the bowl after fifteen minutes and offer nothing until the next meal. Do not upgrade
The rule of thumb: a topper that goes on every meal regardless is fine. A topper that appears because the dog refused is a negotiation you will lose.
Commercial toppers
An enormous market, mostly aimed at owners rather than dogs.
Points to check:
- Is it labelled complementary? Almost all are, meaning it is not balanced on its own — which is fine as a topper and not fine as a meal
- Calories per serving, which are often high
- Fat content, since high-fat toppers are a pancreatitis risk in susceptible dogs
- Whether it duplicates something you could add for less from the fridge
Freeze-dried raw toppers and “fresh food” pouches are convenient. They are also considerably more expensive per calorie than a tin of sardines.
Where toppers do not belong
During an elimination diet trial. Nothing except the trial diet for eight to twelve weeks. One topper invalidates the whole test.
On a therapeutic diet for kidney disease, bladder stones, liver disease or severe allergy — unless your vet has approved it. These diets are formulated precisely and adding to them can undo the point.
On a weight-loss plan, unless the calories are counted and subtracted.
The honest summary
If your dog eats well and is at a healthy weight, a topper adds nothing nutritionally. It is something people do because it feels better, and that is a legitimate reason as long as the calories are counted.
If your dog needs encouragement to eat, a topper is a useful tool — used consistently, mixed through, and subtracted from the meal.
What matters far more than what goes on top is that the base is a complete, balanced diet, that the total is the right amount, and that your dog stays lean.
