Royal Canin · Food

Royal Canin Canine Urinary SO® Aging 7+

Dog
Dry
Senior

Protein: 18% min
Fat: 15% min
Fiber: 3.7% max
Moisture: 10% max

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Facts read from royalcanin.com, checked November 2, 2026. Labels change: check the package before you buy.

Ingredients

1 Brewers rice
2 corn
3 chicken fat
4 corn gluten meal
5 chicken by-product meal
6 brewers rice flour
7 natural flavors
8 potassium chloride
9 egg product
10 wheat gluten
11 fish oil
12 powdered cellulose
13 calcium sulfate
14 vegetable oil
15 dried tomato pomace
16 L-arginine
17 sodium bisulfate
18 DL-methionine
19 L-tyrosine
20 monocalcium phosphate
21 fructooligosaccharides
22 sodium tripolyphosphate
23 taurine
24 choline chloride
25 L-tryptophan
26 salt
27 lecithin
28 trace minerals [zinc proteinate, manganese proteinate, zinc oxide, ferrous sulfate, manganous oxide, copper sulfate, calcium iodate, sodium selenite, copper proteinate]
29 vitamins [DL-alpha tocopherol acetate (source of vitamin E), biotin, D-calcium pantothenate, vitamin A acetate, niacin supplement, pyridoxine hydrochloride (vitamin B6), thiamine mononitrate (vitamin B1), vitamin B12 supplement, riboflavin supplement, vitamin D3 supplement, folic acid]
30 L-carnitine
31 glucosamine hydrochloride
32 marigold extract (Tagetes erecta L.)
33 chondroitin sulfate
34 carotene
35 rosemary extract
36 preserved with mixed tocopherols and citric acid

In label order: by weight before cooking, heaviest first. Underlined ingredients have a glossary entry.

Guaranteed analysis

Nutrient	On the label	Dry matter (calculated)
Crude Protein	18% min	20%
Crude Fat	15% min	16.7%
Crude Fiber	3.7% max	4.1%
Moisture	10% max	—
Eicosapentaenoic Acid (EPA)	0.15% min	0.2%
Docosahexaenoic Acid (DHA)	0.09% min	0.1%
Calcium	0.84% max	0.9%
Phosphorus	0.78% max	0.9%
Sodium	0.53% max	0.6%
Magnesium	0.08% max	0.1%
Vitamin E	350 IU/kg min	—
Lutein	5 mg/kg min	—
Glucosamine	743 mg/kg min	—
Chondroitin sulfate	8 mg/kg min	—

Dry matter takes the water out (value ÷ (100 − moisture) × 100), so wet and dry foods can be compared on one scale.

Calories

per kg: 3,738 kcal
per cup: 340 kcal

Against the AAFCO minimums

The label's guaranteed minimum, next to the minimum AAFCO sets for dogs, adult maintenance.

protein48.2 g vs 45 g minimumAbove
fat40.1 g vs 13.8 g minimumAbove

Per 1,000 kcal, the way AAFCO writes its profiles. Meeting a minimum doesn't make a food right for your pet: ask your veterinarian. How this is worked out

Carbohydrates and calories (estimates)

About 51.2% of the dry matter is carbohydrate, worked out by difference: labels don't state it. The label states no ash, so 8% of dry matter is assumed (a typical value).