Bonito cube
~3 kcal each (315 kcal per 100 g)
Sea Bites bonito cubes contain approximately 3 calories each, tuna pieces approximately 6 calories, and mackerel pieces approximately 11 calories. Most dog treat brands do not publish per-piece calorie counts, which makes "low calorie" impossible to verify. These three numbers are what the claim rests on.
6 products
~3 kcal each (315 kcal per 100 g)
~6 kcal each (310 kcal per 100 g)
~11 kcal each (535 kcal per 100 g)
50% (mackerel), 66% (tuna), 68% (bonito)
3% (tuna), 4% (bonito), 20% (mackerel)
treats should stay under 10% of daily calories
a medium dental chew is typically 70 to 120 kcal
The 10% rule is the standard veterinary guideline that treats should supply no more than 10% of a dog's daily calorie intake. The remaining 90% comes from complete food, which carries the balanced vitamins and minerals treats do not. Exceeding 10% risks both weight gain and nutritional imbalance.
The rule is broken easily because most owners have no idea what their treats cost. A single medium dental chew typically runs 70 to 120 calories. Three in one day consumes most of a small dog's entire treat allowance before any training has happened.
A 10 kg (22 lb) dog eats roughly 590 calories a day, giving a 59-calorie treat allowance. That is 19 bonito cubes, 9 tuna pieces, or 5 mackerel pieces. Scale proportionally: a 30 kg dog has a 135-calorie allowance and a 5 kg dog has 35.
| Dog weight | Daily calories | 10% treat budget | Bonito cubes | Tuna pieces | Mackerel pieces |
|---|---|---|---|---|---|
| 5 kg / 11 lb | ~350 kcal | 35 kcal | 11 cubes | 5 pieces | 3 pieces |
| 10 kg / 22 lb | ~590 kcal | 59 kcal | 19 cubes | 9 pieces | 5 pieces |
| 15 kg / 33 lb | ~800 kcal | 80 kcal | 26 cubes | 13 pieces | 7 pieces |
| 20 kg / 44 lb | ~1,000 kcal | 100 kcal | 33 cubes | 16 pieces | 9 pieces |
| 30 kg / 66 lb | ~1,350 kcal | 135 kcal | 45 cubes | 22 pieces | 12 pieces |
| 40 kg / 88 lb | ~1,670 kcal | 167 kcal | 55 cubes | 27 pieces | 15 pieces |
Figures are for a neutered adult dog at a healthy weight with normal activity. A working dog needs more and a dog on a veterinary weight-loss plan needs less. Your veterinarian can supply a figure specific to your dog.
Fat supplies approximately 9 calories per gram against 4 calories per gram for protein. That single ratio explains most of the difference between a low-calorie treat and a high-calorie one. Freeze-dried tuna at 3% fat and bonito at 4% fat are among the leanest meat treats available.
Mackerel is the exception in this range at 20% fat, because that fat is where the omega-3 lives. Mackerel is the correct choice for skin and coat, covered at dog treats for allergies; tuna and bonito are the correct choices for weight.
Protein also affects satiety. Protein is more filling per calorie than carbohydrate, which is one reason a starch-heavy biscuit leaves a dog looking for another and a protein treat generally does not.
The leanest, lowest-calorie option the dog still values. Bonito cubes at approximately 3 calories each allow frequent rewarding at minimal calorie cost. Weight loss is driven by total daily calories, so any treat plan should sit within a veterinary weight-management programme rather than replace one.
Two changes make more difference than switching brands. First, break pieces in half - a dog's reward response is driven by the event rather than the volume, so half a bonito cube reads as the same win. Second, subtract treat calories from the daily food measure instead of adding them on top. Most treat-driven weight gain comes from treats being additional rather than counted.
For training specifically, our training treats collection covers how to run high-repetition sessions without exceeding the allowance.
Calorie density was derived from USDA composition data for Atlantic mackerel and skipjack tuna, adjusted for the moisture removed during freeze-drying, then multiplied by average piece weight. Bonito cubes average approximately 1 g; tuna and mackerel pieces average approximately 2 g.
Because these are whole fish rather than moulded shapes, piece size varies naturally. The figures are accurate averages rather than exact per-piece measurements.