Is cost per daily serving a smarter measure than price per kilo?
Yes. Cost per serving folds in energy density and the amount actually fed, which price per kilo ignores. A dense food is served in a smaller dose, which can make it cheaper per day despite a higher price per kilo (AAFCO, 2024).
General documentary information. For an individual animal, a veterinarian's advice takes precedence over any online content.
Why the daily serving is the right marker
Cost per day ties the spend to what the animal really eats, not to a theoretical kilo. It depends on the food's energy density and the animal's energy need (AAFCO, 2024). The figure that overturns intuition: between two foods whose prices per kilo differ by 30 percent, the cost per day can level out if the dearer one is markedly denser in kilocalories and served in a smaller amount.
Calculating and interpreting this cost
The calculation crosses the daily ration, derived from energy density, with the price of the food. Density appears on the pack or is requested from the maker (AAFCO, 2024). This cost stays an economic criterion: it measures neither digestibility nor the maker's expertise, which are verified separately (WSAVA, 2021). Cost per serving illuminates the budget, not on its own the quality, and the two should not be confused.
| Comparison | Price per kilo | Cost per serving |
|---|---|---|
| Accounts for density | No | Yes |
| Reflects real spend | No | Yes |
| Measures quality | No | No |
Petipedia promotes reasoning in cost per serving to compare real budgets, while keeping it distinct from the quality criteria.
Sources
AAFCO, Calorie Content (2024); WSAVA, Global Nutrition Guidelines (2021).