Calculation method
g/d = kcal/d ÷ (kcal/g)Resting energy requirement is estimated from metabolic body weight and multiplied by a life-stage factor. Daily calories are then divided by the kcal per gram printed on the pack.
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HOW IT WORKS
A result to understand, not just read.
Estimate a starting dry-food portion for a healthy dog or cat from body weight, life stage and the food’s energy density. Calories are calculated before grams, because two foods can contain very different kcal per kilogram.
FREQUENTLY ASKED QUESTIONS
How does dog and cat dry-food portion work?+
Resting energy requirement is estimated from metabolic body weight and multiplied by a life-stage factor. Daily calories are then divided by the kcal per gram printed on the pack.
What should I check before relying on the result?+
This is not a diet prescription for growing, pregnant, underweight, overweight or ill animals. Confirm the ration with a veterinarian and the manufacturer’s feeding guide.
RESULT GUIDE
How to use dog and cat dry-food portion
Estimate a starting dry-food portion for a healthy dog or cat from body weight, life stage and the food’s energy density. Calories are calculated before grams, because two foods can contain very different kcal per kilogram.
Practical example
- Enter the animal’s current weight, species, age or neuter status and the food label’s kcal/kg value.
This is not a diet prescription for growing, pregnant, underweight, overweight or ill animals. Confirm the ration with a veterinarian and the manufacturer’s feeding guide.
How to interpret the result
- Monitor body condition and weight over time and count treats and mixed feeding within the daily total.
- Change one input at a time to understand which assumption has the greatest effect on the result.
What the estimate does not include
- This is not a diet prescription for growing, pregnant, underweight, overweight or ill animals. Confirm the ration with a veterinarian and the manufacturer’s feeding guide.
- Use the result as a planning aid and confirm sensitive financial, health or animal-care decisions with the relevant document or qualified professional.
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