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A feeding calculator can make an answer look very settled: one dog, one weight, one daily number. Real feeding decisions need more than a tidy result. The useful question is how the estimate was made and how you will check whether it fits your dog.
Dogoos shows a range with its working. Read it as information to discuss and review, alongside the food record and the dog in front of you. It is not a personalised prescription or a weight-loss programme.
Begin with the dog and a real weigh-in
The adult calculation uses logged weight, age, neuter status and energy level. Without usable weight, Nutrition asks for a weigh-in1.
Check that you are looking at the intended dog and a weight you can account for. A number copied from an old note may be a different sort of information from a recent measurement. If you are unsure which is current, resolve that before using the calculation to discuss food.
Keep the practical question beside the estimate: what does your dog currently eat, and what has happened to their weight? An answer is easier to assess when you can explain the inputs, rather than just show someone the final band on the screen.
Resting energy is one step in the calculation
MSD Veterinary Manual describes a resting energy requirement, or RER, for a healthy, fed animal resting in a thermoneutral environment. Its exponential formula is 70 multiplied by body weight in kilograms raised to the power 0.75. Maintenance energy then accounts for more than resting needs2.
An adult calculation to understand
- WeightA hypothetical 20-kilogram dog
- Resting estimate70 × 20 to the power 0.75, about 662 kcal per day
- Next stepApply the relevant maintenance band
- UseDiscuss the estimate, then review the individual response
The example explains arithmetic, not a daily allowance for every dog of that weight. RER and a maintenance estimate are different stages. If you are comparing two calculations, first check which stage each one represents rather than assuming the smaller figure is the correct target.
Keep units in the comparison as well. Energy per day describes an allowance or recorded intake; energy per 100 grams describes the concentration in a food. A food's printed calorie concentration is not, on its own, the amount your dog should eat.
Dogoos applies a band with visible adjustments
Dogoos's adult bands multiply resting energy1.
| Profile | Multiple of resting estimate |
|---|---|
| Neutered adult | 1.4 to 1.6 |
| Entire adult | 1.6 to 1.8 |
Low energy and age eight or over each subtract 0.2; active adds 0.4. The lower end stays at least one times resting energy1.
For the hypothetical 20-kilogram, five-year-old neutered adult without those adjustments, multiplying about 662 by 1.4 and 1.6 gives roughly 927 to 1,059 kcal per day. That is how a range can be produced from a precise calculation without claiming that every value within it is equally suitable for a particular dog.
Other guidance can use different starting assumptions. WSAVA's healthy-adult chart also provides ranges and explicitly warns that individual dogs may need more or less to maintain ideal condition3. A disagreement between two starting estimates is a reason to inspect their scope, not to average them into a prescription.
Research shows why a single weight cannot settle it
Bermingham and colleagues combined 70 groups from 29 publications in a meta-analysis of adult dogs. Energy requirements varied widely, and husbandry and neuter status were associated with differences. The dataset included kennel, hunting, racing, working and pet dogs; only 16 groups were pet dogs4.
The analysis used different measurement methods and had sparse data for old dogs and toy or giant breeds. It was funded by WALTHAM, with funder employees among the authors. It supports caution about general estimates; it did not test Dogoos or validate its specific bands4.
Do not turn an activity label into permission to add food after every outing. Describe the actual routine when discussing feeding with the practice: what happens, for how long and what has changed. The useful information is the routine itself, rather than the most flattering label you could choose for it.
Check condition as well as the scales
WSAVA distinguishes body condition, which assesses fat stores, from muscle condition. Its dog chart uses a nine-point scale; the ideal descriptions include ribs that can be felt without excess fat, a visible waist from above and an abdominal tuck from the side3. Ask the practice to demonstrate the assessment on your dog.
Consider shape as well as weight. PDSA recommends an individual weight-loss plan with the practice and regular weigh-ins for follow-up5.
Medical conditions and some medicines can contribute to weight gain, although PDSA describes a diet and exercise imbalance as the more common cause5. Mention medicines and other changes to the practice rather than trying to explain a changing weight from the calorie screen alone.
Information for a feeding discussion
- Which dog and which weigh-in am I using?
- What food, portions and extras are actually being given?
- What is the weight trend rather than just today's number?
- Can the practice show me how to assess body condition?
- What change, if any, has the practice advised and when will we review it?
Bring the food record and the unanswered questions together. If the record is incomplete, say so. A small honest gap is more useful than a complete-looking total built from assumptions that nobody can check.
Count what goes into the day
The treats bar uses ten per cent of the midpoint; treats also count in the day's total. Unknown food energy leaves the total incomplete1.
Consider a made-up day with a measured breakfast, a measured dinner and some training rewards. You could know the meal portions very well and still have an unanswered question about the rewards. Keep those two facts separate rather than treating the precision of one part as proof that the whole total is complete.
The same applies when more than one person feeds the dog. Agree how you will record what actually happened. A planned portion and a portion already given are different entries in the story you are trying to understand, even if the food itself has not changed.
Know when the range is not the next step
Puppies recognised from the birthday or Puppy life stage receive no target; weight-loss plans also belong with the vet1. Its age boundary is a feature boundary, not a veterinary declaration that an individual dog has finished growing.
MSD treats calculated needs as starting points and stresses individual variation. It also explains why reducing an ordinary maintenance diet can reduce nutrients as well as calories2. Do not simply force a weight-loss goal into an adult maintenance calculation.
If you are struggling to maintain a healthy weight, or something about your dog concerns you, contact your vet for advice5. Keep the actual food, weight history and any change in routine available for the conversation.
Then use the range for the job it can do: make the arithmetic visible, help you ask a clearer question and support a record you can review. The individual plan and its follow-up matter more than making today's total land neatly inside a coloured band.
Sources and further reading5 sources
The small numbers in the article link to the source behind each fact. Sources open on their own websites.