Skip to content
My Pet Magazine
FIND THE BEST FOOD

Royal Canin Weight Care

Manufacturer: Royal Canin

Royal Canin Royal Canin Weight Care Weight Care Adult
58.6Technical Score

The Royal Canin Weight Care (Royal Canin) earned a technical score of 58.6/100 (rated ❌ Below Standard) under the independent My Pet Magazine methodology, which combines the IDNM nutrient density index (39 pts) and the IPFI ingredient purity index (66 pts). On a dry-matter basis, this food for cats delivers 36.76% protein and 9.08% fat. The analysis is computed by algorithm, with no payment or interference from brands.

Is Royal Canin Weight Care good?

Not the best choice. Royal Canin Weight Care is in the "Below Standard" band (technical score 58.6/100). See the higher-scoring alternatives on this page. The score combines nutritional density (IDNM 39) and ingredient purity (IPFI 66), with 36.76% protein and 9.08% fat on a dry-matter basis. At 3209 kcal/kg, FEDIAF maintenance needs work out to 59–79 g per day for an adult cat weighing 4 kg (full table below).

Nutritional Analysis

IDNM (Nutrient Density)39 / 100
IPFI (Ingredient Purity)66 / 100
Final Score58.6

Dry-Matter Composition

Protein36.76%
Fat9.08%

Composition and Energy

Values as declared in the manufacturer guaranteed analysis (as-fed basis — as printed on the bag).

Nutritional composition of Royal Canin Weight Care (metabolizable energy when available in the dataset)
NutrientValue
Crude protein34 %
Crude fat8.4 %
Crude fiber11.2 %
Moisture7.5 %
Metabolizable energy3209 kcal/kg

How much to feed per day

Estimated daily serving (g/day) based on the metabolizable energy of this food (3209 kcal/kg) and the maintenance energy requirement (MER) of an adult cat per FEDIAF 2024, from the lowest value (low-activity dog; neutered or indoor cat) to the moderate one (moderately active dog; active cat). It is a starting point: adjust to your pet's body condition and your veterinarian's advice. The calculation ignores age, neutering (in dogs) and individual clinical conditions.

Recommended daily serving in grams per day of Royal Canin Weight Care by the weight of the cat
Weight of the catEnergy requirementRecommended serving
3 kg157–209 kcal/day49–65 g/day
4 kg190–253 kcal/day59–79 g/day
5 kg220–294 kcal/day69–92 g/day
6 kg249–332 kcal/day78–104 g/day

Formula: maintenance energy (kcal/day) = coefficient × weight(kg)^exponent. Dogs: coefficient 95 (low activity) to 110 (moderate activity), exponent 0.75 (FEDIAF 2024, Table VII-7, p. 55). Cats: coefficient 75 (neutered or indoor) to 100 (active), exponent 0.67 (FEDIAF 2024, Table VII-9, p. 57). Portion (g/day) = energy requirement ÷ (food kcal/kg ÷ 1000). Source: FEDIAF, Nutritional Guidelines for Complete and Complementary Pet Food for Cats and Dogs, July 2024.

Ingredients

  1. 1Chicken meal
  2. 2Pea fiber
  3. 3Wheat gluten
  4. 4Corn
  5. 5Corn gluten meal
  6. 6Natural flavors
  7. 7Brewers rice flour
  8. 8Wheat
  9. 9Brewers rice
  10. 10Chicken fat

What we like

  • ✓taurine declared
  • ✓L-carnitine

Points of concern

  • ⚠corn and wheat present
  • ⚠corn and wheat gluten
  • ⚠grain splitting
✓ Verified data

www.royalcanin.com/us — guaranteed analysis, ingredient list and AAFCO statement read directly on the product page 2026-09-03

View on Amazon

Frequently asked questions about Royal Canin Weight Care

What is the technical score of Royal Canin Weight Care?
Royal Canin Weight Care (Royal Canin) scores 58.6/100 under the My Pet Magazine methodology — a weighted average of the IDNM nutrient density index (39 points) and the IPFI ingredient purity index (66 points), by the formula (IDNM × 0.55) + (IPFI × 0.45). The analysis is 100% algorithmic, with no interference from brands.
How much protein does Royal Canin Weight Care have?
On a dry-matter basis (removing the effect of moisture), Royal Canin Weight Care has 36.76% protein and 9.08% fat. Converting to a dry-matter basis allows a fair comparison between foods for cats with different moisture levels.
Is Royal Canin Weight Care a good food for cats?
Under the My Pet Magazine classification, Royal Canin Weight Care is "Below Standard" (score 58.6/100). Strengths: taurine declared, L-carnitine. Points of concern: corn and wheat present, corn and wheat gluten. Talk to a veterinarian before changing the diet of your cat.

Keep comparing

More from Royal Canin

Alternatives in the same category and life stage

Foods for cats with the same profile (adult · weight control), from highest to lowest score.

← Back to Ranking 2026