A dog-food ingredient list identifies ingredients; guaranteed analysis reports specified nutrient guarantees. Read both, but do not treat either one as a complete rating of a food. A useful comparison also identifies the exact product and its intended nutritional role.
Give each panel one job
Use the ingredient list when you need an ingredient name. Use guaranteed analysis when you need the listed nutrient guarantees. AAFCO: pet-food ingredients lists explains ingredient naming and why a list alone is not a complete nutritional evaluation.
Copy the entire product name before comparing two bags. A puppy formula and an adult formula from the same range are separate products. Keep the adequacy statement available without turning this comparison into a decision about an individual dog’s diet.
Keep minimums and maximums attached
Guaranteed values are not all exact measured amounts. Preserve words such as minimum and maximum when you transcribe the panel. A spreadsheet cell containing only “26” loses both the unit and the kind of guarantee.
Do not subtract two printed guarantees and report the result as an exact nutritional difference. If a decision depends on typical nutrient content or a particular analytical basis, request the appropriate product information from the manufacturer and discuss dietary interpretation with your veterinary team.
Build a comparison with useful boundaries
| Field | Record | Do not infer |
|---|---|---|
| Ingredients | Full list in printed order | A complete quality score from the first item |
| Guaranteed analysis | Value, unit and min/max qualifier | An exact laboratory result for every nutrient |
| Moisture basis | As stated on the label or supplied data | Dry and wet percentages are directly comparable |
| Adequacy statement | Exact product statement | Suitability for every dog |
Turn missing information into questions
For a fictional comparison, Product A supplies a printed guarantee while Product B supplies a typical analysis by email. Put them in separate columns and label their basis rather than presenting them as equivalent figures.
If you cannot obtain comparable data, say so in your shopping notes. A tidy table should not conceal uncertainty. Use the existing moisture-comparison guide for that specific arithmetic and the manufacturer-question guide for a structured inquiry. This page helps organize evidence; it does not rank brands or prescribe a diet.
Frequently asked questions
Is the first ingredient enough to choose a food?
No. It is one part of the label and does not describe the complete formulation, substantiation or suitability for your dog.
Are guaranteed percentages exact amounts?
Read their qualifiers. A minimum or maximum guarantee should not be presented as an exact typical value.