Which Royal Canin Veterinary Diet Is Right for My Dog?

Updated November 6, 2026

The right one is the diet built for your dog's diagnosis, and your vet should confirm it. Here are 14 Royal Canin vet diets for different health needs, from Gastrointestinal for digestion to Renal Support for the kidneys. Find your dog's need below.

How do the Royal Canin vet diets differ?

Each diet changes one thing on purpose: fat, fiber, phosphorus, protein type, minerals or calories. One row per health need, using the main dry formula, from royalcanin.com, read November 6, 2026. On a phone, swipe the table sideways.

Health needDietWhat Royal Canin says it doesProtein / fat minCalories a cupAmazon, per 1,000 calories
A sensitive gut (digestive support) Gastrointestinal
Also: Moderate Calorie, Puppy, loaf and mousse versions		 “A combination of highly digestible proteins, balanced fibers and EPA+DHA helps to support digestive health.” 23% / 18% 394 $3.03 (22 lb bag)
A gut problem that needs a low-fat diet Gastrointestinal Low Fat
Also: Small Dog, loaf, and Low Fat + Hydrolyzed Protein		 “For the nutritional management of dogs needing a fat-restricted diet.” 20% / 5% 247 $3.43 (28.6 lb bag)
A gut problem that needs more fiber Gastrointestinal High Fiber
Also: loaf in sauce		 “A fiber-rich diet to help regulate intestinal transit.” 21% / 14% 287 $3.94 (17.6 lb bag)
Food sensitivities (food trials) Hydrolyzed Protein HP
Also: Small Dog, Moderate Calorie, PS, Puppy, loaf; Ultamino; Selected Protein PD (duck) and PR (rabbit); Vegetarian		 “Hydrolyzed soy protein, composed of low molecular weight peptides, is highly digestible and supports gastrointestinal and dermatological health. (Royal Canin calls its PS version a diet for adult dogs with food sensitivities.)” 19% / 17% 324 $3.23 (25.3 lb bag)
Struvite bladder stones Urinary SO
Also: Moderate Calorie, Small Dog, Aging 7+, Urinary SO + Satiety, wet		 “Provides nutrition that aids in the management of pure struvite uroliths.” 17% / 15% 333 $2.98 (25.3 lb bag)
Urate bladder stones Urinary UC “Supports urinary health with low purine proteins, which may help prevent urate stones” 18% / 13% 339 see the Royal Canin page
Kidney support Renal Support A (also F and S)
Also: Renal Support Early Consult (moderate phosphorus, early stage), D, E and T wet versions		 “A precise antioxidant complex, fatty acids from fish oil, low phosphorus, and targeted protein levels help promote kidney car[e]” 12% / 16% 352 $4.08 (6 lb bag)
Liver support (low copper) Hepatic
Also: loaf		 “Adapted levels of high-quality proteins help support healthy liver function. ... Low level of copper to help minimize its accumulation in liver cells.” 14% / 14% 323 $4.21 (6 lb bag)
Weight loss Satiety Support Weight Management
Also: Small Dog; Weight Control for keeping weight off; Satiety + Hydrolyzed Protein; Advanced Mobility + Satiety		 “Provides safe weight loss and helps avoid weight regain. 97% of dogs lost weight in 3 months.” 28% / 7.5% 224 $5.11 (7.7 lb bag)
Blood sugar support Glycobalance
Also: Small Dog, wet		 “Supports healthy blood glucose levels. Formulated with a reduced level of starch (53% lower than ROYAL CANIN Size Health Nutrition Medium Adult dry)” 35% / 10% 316 see the Royal Canin page
Heart support Early Cardiac “Contains arginine, carnitine, and taurine for optimal cardiac health” 21.5% / 13.5% 290 $4.68 (7.7 lb bag)
Joint support and mobility Advanced Mobility Support
Also: loaf; combinations with Satiety or Renal Support		 “In a clinical study, 88% of dogs showed an improvement in mobility when fed Advanced Mobility Support.” 23% / 10% 316 $3.83 (8.8 lb bag)
Tartar and plaque Dental
Also: Small Dog (under 22 lb)		 “Accepted by the VOHC and clinically proven to reduce tartar buildup and maintain oral care” 20% / 15% 320 see the Royal Canin page
Stress and fearful behavior Calm “Contains hydrolyzed milk protein and L-tryptophan to help manage dogs exhibiting fearful behaviors in stressful environments” 23% / 14% 355 see the Royal Canin page

Protein and fat are label minimums for the dry food. Per-1,000-calorie cost is for the bag size shown, at its Amazon price. Bags run from 6 to 28.6 lb, and the cost is for that bag, so a different size of the same diet will cost a different amount. Renal Support comes in three dry versions (A, F and S); the row and button are for A.

Amazon prices as of 2026-11-11. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.

How do I know which one my dog needs?

  • Start with the diagnosis. Each diet changes nutrients for one problem, so the right one depends on your dog's tests. Gastrointestinal Low Fat has 5% fat; Glycobalance has 35% protein and Royal Canin says it has 53% less starch than its Medium Adult food; Renal Support A has 12% protein.
  • Bladder stones depend on the type. Urinary SO is for struvite stones; Urinary UC is for urate stones. Your vet's urine test or stone analysis shows which kind your dog has.
  • Food sensitivities have their own group. Hydrolyzed Protein HP, Ultamino, Selected Protein PD (duck) and PR (rabbit), and Vegetarian are the ones Royal Canin aims at food sensitivities. See is Royal Canin Hydrolyzed Protein good for allergies?
  • Two problems at once: Royal Canin's combination diets pair two needs, such as Satiety + Hydrolyzed Protein.

Questions owners ask about Royal Canin vet diets

Do I need a prescription for Royal Canin veterinary diets?

Yes, plan on your vet's OK. Royal Canin says to consult your veterinarian and to buy its vet diets from a trusted partner "if you have a prescription." Amazon sells many of them, but use them with your vet's OK, because each one changes nutrients like fat, phosphorus, protein or minerals on purpose.

What is the difference between Royal Canin Gastrointestinal and Gastrointestinal Low Fat?

Fat. Gastrointestinal has 18% minimum fat and 394 calories a cup. Gastrointestinal Low Fat has 5% and 247 calories a cup, and Royal Canin says it is "for the nutritional management of dogs needing a fat-restricted diet."

Why is Royal Canin Renal Support so low in protein?

Renal Support A has 12% minimum protein against 20% or more in most of the other main diets here. Royal Canin says it uses "low phosphorus, and targeted protein levels" to help promote kidney care. For early kidney changes, Royal Canin also makes Renal Support Early Consult with moderate phosphorus.

Which Royal Canin vet diet is best for weight loss?

Satiety Support Weight Management: 224 calories a cup, the lowest of the 14 main diets here, with 28% protein. Royal Canin says "97% of dogs lost weight in 3 months." Weight Control is the one for keeping weight off.

Can one Royal Canin diet cover two problems?

Yes, Royal Canin makes combination diets: Gastrointestinal Low Fat + Hydrolyzed Protein, Satiety + Hydrolyzed Protein, Urinary SO + Satiety, Advanced Mobility + Satiety, and Renal Support with Hydrolyzed Protein or Advanced Mobility. Ask your vet which problem comes first.

Has Royal Canin been recalled?

In April 2007, Royal Canin recalled some foods made with imported rice protein that held a melamine compound, including the Veterinary Diet Canine Early Cardiac EC 22 and Canine Skin Support SS21 formulas of that time. There is no Royal Canin recall in FDA's animal and veterinary recall list from 2019 on (checked November 6, 2026).

More: Hill's vs Royal Canin · Royal Canin recall history · Royal Canin brand record · all comparisons.

Sources

  • Diets: Royal Canin US veterinary dog products (83 items listed, including treats and pill pockets), each diet's page linked from the table, read November 6, 2026. Quotes are Royal Canin's own claims.
  • Prices: Amazon, through Amazon's product API, sold by Amazon.com, on the dates shown.
  • Recalls: FDA's 2007 Royal Canin notice (archived) and FDA's animal and veterinary recall list from 2019 on.
  • Not checked: wet versions' labels, Royal Canin cat diets, and whether any diet suits your dog. Ask your vet.