ROYAL CANIN · REVIEW
Royal Canin Feline Renal Support F
Royal Canin Feline Renal Support F scores 1.4/5 for ingredient quality — a dry food cat food with 21% protein targeting adult cats.
Poor
MiauMiau AI score · 1.4/5
AI ANALYSIS
What MiauMiau's AI actually sees
This food scores poorly due to brewers rice, corn, and wheat gluten as the first three ingredients, indicating a heavy reliance on plant-based fillers. The protein content of 22.8% DMB is far too low for an obligate carnivore, and the estimated carbohydrate level of 54.0% is excessive.
According to MiauMiau's analysis of over 2,700+ dry food products, Royal Canin Feline Renal Support F scores below the dry food average.
Analyzed by MiauMiau's Nutritional AI · April 2026
This analysis is generated from ingredient and compositional data. It is not veterinary advice. Always consult your veterinarian for health decisions.
Score breakdown
HOW IT COMPARES
Royal Canin Feline Renal Support F vs. the category
Compared to the average dry food across 2,700+ products in our database.
Category avg: 2.6/5
Scores 1.2 points below the average dry food
OUR ASSESSMENT
What we like vs. what to watch
What we like
- Clean formula with no controversial additives
- Nutritionally complete — suitable as a sole diet
What to watch
- Ingredient quality is below average
- Protein content falls short of optimal levels
- Contains notable filler ingredients
- Uses vague 'derivatives' instead of named ingredients
- High carbohydrate content relative to protein
WHO IT'S FOR
Is this right for your cat?
Not ideal for
INGREDIENTS
What's actually in the bag
Top ingredients
- 01Brewers rice
- 02corn
- 03chicken fat
- 04wheat gluten
- 05corn gluten meal
Ingredients are listed by weight. The first ingredients make up the majority of the formula.
Concerns
- Uses unnamed animal derivatives instead of specific protein sources
- Multiple grain-based fillers among the top ingredients
NUTRITION
The numbers
Guaranteed analysis
Dry matter basis
Dry matter basis removes water content for accurate comparison between wet and dry foods.
FULL LABEL
Every ingredient
Brewers rice, corn, chicken fat, wheat gluten, corn gluten meal, soy protein isolate, powdered cellulose, natural flavors, chicken by-product meal, wheat, dried chicory root, fish oil, calcium carbonate, potassium citrate, sodium silico aluminate, powdered psyllium seed husk, potassium chloride, sodium pyrophosphate, L-arginine, choline chloride, fructooligosaccharides, salt, DL-methionine, taurine, vitamins [DL-alpha tocopherol acetate (source of vitamin E), L-ascorbyl-2-polyphosphate (source of vitamin C), niacin supplement, biotin, riboflavin supplement, D-calcium pantothenate, pyridoxine hydrochloride (vitamin B6), vitamin A acetate, thiamine mononitrate (vitamin B1), vitamin B12 supplement, folic acid, vitamin D3 supplement], L-lysine, trace minerals [zinc oxide, ferrous sulfate, manganous oxide, copper sulfate, sodium selenite, calcium iodate], marigold extract (Tagetes erecta L.), rosemary extract, preserved with mixed tocopherols and citric acid.
FAQ
Questions worth answering
Is Royal Canin Feline Renal Support F good for cats?
According to MiauMiau's AI analysis, Royal Canin Feline Renal Support F is a below-average dry food with a quality score of 1.4 out of 5. This food scores poorly due to brewers rice, corn, and wheat gluten as the first three ingredients, indicating a heavy reliance on plant-based fillers. The protein content of 22.8% DMB is far too low for an obligate carnivore, and the estimated carbohydrate level of 54.0% is excessive.
What is the protein content of Royal Canin Feline Renal Support F?
Royal Canin Feline Renal Support F contains 21% protein as listed on the label. On a dry matter basis, that's 22.83% protein. Dry matter basis is the fairest way to compare protein between wet and dry foods because it removes water content from the equation.
Is Royal Canin Feline Renal Support F grain-free?
No, Royal Canin Feline Renal Support F is not grain-free and contains grain-based ingredients. For most cats, grains are perfectly safe and provide a source of energy. However, cats with diagnosed grain allergies may need a grain-free alternative.
How does Royal Canin Feline Renal Support F compare to other dry food?
According to MiauMiau's database of over 2,700+ cat food products, Royal Canin Feline Renal Support F scores 1.2 points below the average dry food quality score of 2.6. MiauMiau's AI evaluates ingredient quality, protein adequacy, filler content, and additive safety to generate each score.
Is Royal Canin Feline Renal Support F suitable for kittens or senior cats?
Royal Canin Feline Renal Support F is formulated for adult cats. Its relatively low protein content means it may not be suitable for kittens or very active cats. If you have a kitten or a senior cat, look for formulas specifically designed for their life stage.
What are the main ingredients in Royal Canin Feline Renal Support F?
The top 5 ingredients in Royal Canin Feline Renal Support F are: Brewers rice, corn, chicken fat, wheat gluten, corn gluten meal. The primary ingredient is Brewers rice. The remaining top ingredients are corn, chicken fat, wheat gluten, corn gluten meal. Ingredient order indicates proportion by weight, so the first ingredients make up the bulk of the formula.
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