Relative super saturation (RSS) methodology predicts the crystallization potential of urine. RSS is used to develop diets for cats prone to both struvite and oxalate urolithiasis.

Specially formulated to assist in the management of lower urinary tract disease in cats.

Water sufficient for processing, pork by-products, pork liver, chicken by-products, chicken liver, chicken, pork plasma, powdered cellulose, wheat flour, natural flavors, wheat gluten, calcium sulfate, salt, fish oil, carob bean gum, carrageenan, potassium chloride, sodium tripolyphosphate, xanthan gum, taurine, sodium bisulfate, DL-methionine, vitamins [DL-alpha tocopherol acetate (source of vitamin E), thiamine mononitrate (vitamin B1), biotin, niacin supplement, D-calcium pantothenate, folic acid, pyridoxine hydrochloride (vitamin B6), riboflavin supplement, vitamin B12 supplement, vitamin D3 supplement], marigold extract (Tagetes erecta L.), trace minerals [zinc oxide, zinc proteinate, ferrous sulfate, calcium iodate, copper sulfate, manganous oxide, sodium selenite].

Calorie Content

This diet contains 820 kcal ME/kg; 119 kcal ME/can on an as fed basis (calculated).

Crude Protein (min)10.5%
Crude Fat (min)2.5%
Crude Fiber (max)2.0%
Moisture (max)81.0%.

Wet Feeding

Body Weight Tendency to be Overweight Ideal Weight
4.4 lbs (2 kg) 5/8 can (107 g) 3/4 can (133 g)
5.5 lbs (2.5 kg) 3/4 can (125 g) 1 can (156 g)
6.6 lbs (3 kg) 7/8 can (142 g) 1 1/8 cans (178 g)
7.7 lbs (3.5 kg) 1 can (159 g) 1 1/4 cans (199 g)
8.8 lbs (4 kg) 1 can (175 g) 1 3/8 cans (218 g)
9.9 lbs (4.5 kg) 1 1/8 cans (190 g) 1 1/2 cans (237 g)
11 lbs (5 kg) 1 1/4 cans (205 g) 1 1/2 cans (256 g)
13.2 lbs (6 kg) 1 3/8 cans (233 g) 1 3/4 cans (291 g)
15.4 lbs (7 kg) 1 5/8 cans (260 g) 2 cans (325 g)
17.6 lbs (8 kg) 1 3/4 cans (285 g) 2 1/8 cans (358 g)
19.8 lbs (9 kg) 1 7/8 cans (311 g) 2 3/8 cans (389 g)
22 lbs (10 kg) 2 cans (335 g) 2 1/2 cans (419 g)

Mixed Feeding

Weight Can + Overweight Normal Lean
4.4 lb (2 kg) 1/4 can + 1/8 cup (16 g) 1/4 cup (23 g) 3/8 cup (29 g)
5.5 lb (2.5 kg) 1/2 can + 1/8 cup (10 g) 1/4 cup (18 g) 1/4 cup (26 g)
6.6 lb (3 kg) 1/2 can + 1/8 cup (15 g) 1/4 cup (23 g) 3/8 cup (32 g)
7.7 lb (3.5 kg) 1/2 can + 1/4 cup (19 g) 3/8 cup (28 g) 1/2 cup (38 g)
8.8 lb (4 kg) 1/2 can + 1/4 cup (22 g) 3/8 cup (33 g) 1/2 cup (44 g)
9.9 lb (4.5 kg) 1/2 can + 1/4 cup (26 g) 1/2 cup (38 g) 5/8 cup (49 g)
11 lb (5 kg) 1/2 can + 3/8 cup (30 g) 1/2 cup (42 g) 5/8 cup (55 g)
12 lb (5.5 kg) 1/2 can + 3/8 cup (33 g) 1/2 cup (47 g) 3/4 cup (60 g)
13 lb (6 kg) 1/2 can + 3/8 cup (37 g) 5/8 cup (51 g) 3/4 cup (65 g)
14 lb (6.5 kg) 1/2 can + 1/2 cup (40 g) 5/8 cup (55 g) 3/4 cup (70 g)
15 lb (7 kg) 1 can + 1/4 cup (23 g) 1/2 cup (39 g) 5/8 cup (55 g)
17 lb (7.5 kg) 1 can + 1/4 cup (26 g) 1/2 cup (43 g) 3/4 cup (60 g)
18 lb (8 kg) 1 can + 3/8 cup (29 g) 1/2 cup (47 g) 3/4 cup (64 g)
19 lb (8.5 kg) 1 can + 3/8 cup (33 g) 5/8 cup (51 g) 3/4 cup (69 g)
Royal Canin Veterinary Diet Feline Urinary SO Loaf in Sauce Canned Cat Food

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