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The Comparison

Two Foods, One Method

The same five measures, applied to each food from its own figures.

Every food here is made by Science Diet, so the recall row cannot separate them.

Two Foods, One Method. Each row is one measure; the best figure in a row is marked.
01 Science Diet Hill’s Science Diet Adult Healthy Mobility Large Breed Chicken Meal, Brown Rice & Barley Swap Remove 02 Science Diet Hill’s Science Diet Perfect Digestion Large Breed Chicken, Brown Rice & Whole Oats Swap Remove + Add A Food + Add A Food
01 Protein, Dry Matter Higher Is Better 26-32% dm reads typical mainstream. 01 Hill’s Science Diet Adult Healthy Mobility Large Breed Chicken Meal, Brown Rice & Barley 18.9% 02 Hill’s Science Diet Perfect Digestion Large Breed Chicken, Brown Rice & Whole Oats 22.2% Best in this row
02 Carbohydrate Load, Dry Matter Lower Is Better Estimated, 6% ash assumed. Estimated, not measured. It is what is left of the guaranteed analysis once protein, fat, fiber and moisture are taken out, with ash assumed at 6%. That leftover is mostly starch but also carries sugars and the fiber a crude-fiber test misses, so read it as a close estimate rather than an exact figure. Measured as fed, the same basis as the bag. 01 Hill’s Science Diet Adult Healthy Mobility Large Breed Chicken Meal, Brown Rice & Barley 60% 54.0% as fed 02 Hill’s Science Diet Perfect Digestion Large Breed Chicken, Brown Rice & Whole Oats 54% 49.0% as fed Best in this row
03 Named Proteins In The First Five Count of named animal proteins. The count matches any named animal word in the opening five ingredients, so it also counts animal fats and flavourings as proteins. It is shown because it is one of the five measured lines, but it is too rough to call a winner on. 01 Hill’s Science Diet Adult Healthy Mobility Large Breed Chicken Meal, Brown Rice & Barley 1 of 5 02 Hill’s Science Diet Perfect Digestion Large Breed Chicken, Brown Rice & Whole Oats 1 of 5
04 Flagged Additives Level Lower Is Better Matched against the flag list. 01 Hill’s Science Diet Adult Healthy Mobility Large Breed Chicken Meal, Brown Rice & Barley None 02 Hill’s Science Diet Perfect Digestion Large Breed Chicken, Brown Rice & Whole Oats None
05 Brand Recall History Level Manufacturer, not recipe. 01 Hill’s Science Diet Adult Healthy Mobility Large Breed Chicken Meal, Brown Rice & Barley None 02 Hill’s Science Diet Perfect Digestion Large Breed Chicken, Brown Rice & Whole Oats None
Starch, As Fed Estimated, not measured. It is what is left of the guaranteed analysis once protein, fat, fiber and moisture are taken out, with ash assumed at 6%. That leftover is mostly starch but also carries sugars and the fiber a crude-fiber test misses, so read it as a close estimate rather than an exact figure. Measured as fed, the same basis as the bag. 01 Hill’s Science Diet Adult Healthy Mobility Large Breed Chicken Meal, Brown Rice & Barley 54.0% 02 Hill’s Science Diet Perfect Digestion Large Breed Chicken, Brown Rice & Whole Oats 49.0%
Kcal / Cup 01 Hill’s Science Diet Adult Healthy Mobility Large Breed Chicken Meal, Brown Rice & Barley 359 02 Hill’s Science Diet Perfect Digestion Large Breed Chicken, Brown Rice & Whole Oats 380
First Five Ingredients 01 Hill’s Science Diet Adult Healthy Mobility Large Breed Chicken Meal, Brown Rice & Barley Chicken Meal, Brewers Rice, Whole Grain Sorghum, Brown Rice, Whole Grain Wheat 02 Hill’s Science Diet Perfect Digestion Large Breed Chicken, Brown Rice & Whole Oats Chicken, Cracked Pearled Barley, Brown Rice, Brewers Rice, Whole Grain Oats

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Every figure here is the food's own. Protein and carbohydrate are converted to dry matter so foods of different moisture can be set beside each other; starch is estimated from the guaranteed analysis with ash assumed at 6.0%, and the recall record belongs to the manufacturer rather than to the recipe. Two rows are printed but never marked: the named-protein count, because the detection behind it is too rough to call a winner on, and calories, because neither more nor fewer is better without knowing the dog.

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