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Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy

CatWetMain FoodAdult

Complete & balanced diet

The label carries a nutritional adequacy statement saying this food is "complete and balanced" — meaning it is formulated to provide every essential nutrient your pet needs for the stated life stage, in the right proportions.

A food may only make this claim if it meets an established nutrient profile (AAFCO or FEDIAF) or passes a feeding trial. Because it is complete, it can be fed as the sole daily diet.

Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy scores 0/5 on Moesonson's label-based analysis (an estimate — some main ingredients could not be identified). Its two scoring factors rate evenly: protein clarity (low — 0% of the recipe's protein panel is clearly named) and animal-protein content (limited — 0% of the weighted protein comes from animal sources).

Rating

Updated Aug 2026
Estimated rating — we couldn't identify some of the main ingredients, so this rating may be inaccurate.
☆︎☆︎☆︎☆︎☆︎ 0.0 / 5
Protein Clarity

Protein Clarity

This measures how clearly the protein sources are identified on the label. "High" means ingredients like "chicken" or "salmon" are listed by name, so you know exactly what your pet is eating. "Low" means vague terms like "meat meal" or "animal by-products" are used, making it harder to know what's really inside.

Why does clarity matter?

According to AAFCO (Association of American Feed Control Officials), pet food labels must follow specific naming standards. When a product uses a named protein like "chicken" it must contain at least 25% of that ingredient. Vague terms like "meat by-products" have no such minimum and can include lower-quality parts from any animal source — making it impossible to know what your pet is actually eating or to identify allergens.

Low
Animal Protein

Animal Protein

This estimates how meat-forward the protein sources are from the ingredient label. Named animal proteins count strongly, plant protein concentrates count strongly against the score, and whole plant ingredients with some protein count more lightly. A "High" score means the recipe appears mainly animal-protein led. A "Low" score means the label shows a stronger reliance on plant protein signals.

This is an ingredient-label heuristic, not an exact lab measurement of protein grams.

Why does animal protein matter?

1. Contains irreplaceable essential nutrients Taurine and Arginine — which cats need to stay healthy — are only found in meat. Plants contain none at all.

2. Plant proteins are poorly utilized by the body Even though plant proteins (like corn gluten meal) may show 92.9–96% apparent digestibility, that does not mean high bioavailability. They lack adequate Lysine (only 1.7% vs. the ideal 6–7%) and contain phytic acid that blocks mineral absorption.

Low
How we review →

How this score is made

This score isn’t a hand-wavy impression: it reads what the label actually prints — the ingredient list, guaranteed analysis and AAFCO adequacy statement — and runs it through the same algorithmic rubric as every other product. No brand pays for placement, and there are no affiliate links on reviewed products.

Read the full methodology

Is Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy wet cat food good?

Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy is a wet cat food rated 0 stars, with low ingredient transparency and limited animal protein content. However, several animal ingredients are described in generic terms, which reduces sourcing transparency. This recipe is free from Gluten grains, Grains (gluten-free), Dairy, Egg, Legumes, Nuts, Poultry, Red meat, Shellfish, Unknown Meal but contains Fish.

Allergy Highlights

Contains:

Fish

Free From:

Gluten grainsGrains (gluten-free)DairyEggLegumesNutsPoultryRed meatShellfishUnknown Meal

Pros

  • Includes plant ingredients that can provide fiber and natural antioxidants.

Cons

  • Some non-animal ingredients are not clearly identified, which reduces formula transparency.

Nutrition Breakdown

Nutrition Breakdown — Dry Matter
Protein 54%
Fat 25%
Est. Carbs 6%
Fiber 8%
Ash 8%

Moisture (82%) removed so you can compare foods fairly.

Dry matter basis = label value ÷ (100% − moisture%). Carbs estimated from remaining.

Nutrition Breakdown — As Fed
Protein 10%
Fat 5%
Est. Carbs 1%
Fiber 1%
Moisture 82%
Ash 1%

As-fed values are the raw percentages printed on the product label.

Tips

Ingredients Analysis

14 of 17 matched

  • 1 Pork Meat and Animal Derivatives

    No match found in database

  • 2 Poultry Meat and Animal Derivatives

    No match found in database

  • 3 Cereals
    Carbs

    Description

    A mixture of grains such as corn, rice, and wheat, usually with a high content of carbs.

    Why Notice?

    An inexpensive filler with gluten, with limited nutrition value to dogs / cats. Made of unknown sources, its quality is highly questionable.

    Uncertain/Risky

    Could be made of by-products / inferior food that are not suitable for consumption.

  • 4 Sunflower Oil
    Fat

    Description

    The oil derived from sunflower seeds, high in either omega 6 and 9 fats, low in saturated fat and is packed with natural anti-oxidant vitamin E.

  • 5 Minerals
    Supplement

    Description

    A general term for mineral supplementation, specific sources not identified.

  • 6 Powdered Cellulose
    Carbs

    Description

    The substance provides strength and rigidity to plants, which are mostly made of insoluble fiber. It is commonly added to pet foods to reduce the calorie content for the "weight management" type.

    Why Notice?

    Unspecified plant products made of unknown sources. Its quality is highly concerned, often seen in low quality pet foods.

    Digestion Concern

    Dogs and cats lack the enzymes capable of digesting cellulose. A high level of fiber could interfere with the digestion of protein and other minerals.

    Uncertain/Risky

    Could be made up of cheap and unwanted fiber by-products. However, from our research, most cellulose used in pet food is made up of pine trees.

  • 7 Algal Oil
    Fat

    Description

    Oil extracted from algae, a sustainable source of DHA and EPA omega-3 fatty acids.

    Why Prefer?

    A sustainable plant-based source of omega-3 fatty acids.

  • 8 Amino Acids
    Supplement

    Description

    Building blocks of proteins, usually added to improve the protein quality and amino acid profile of pet foods.

  • 9 Vitamins
    Supplement

    Description

    A mixture of vitamins supplements to ensure the complete nutrition profile of pet food.

  • 10 Tomato Powder
    Carbs

    Description

    Packed with vitamins A, C, K, potassium, and manganese.

  • 11 Fish Oil
    Fat

    Description

    Oil derived from fish, rich in omega-3 fatty acids, DHA, and EPA.

    Why Concerned?

    Fish oil is beneficial but the unnamed source makes quality assessment difficult.

  • 12 Gelling Agent

    (Detected): Gelling Agents

    Food Additive

    Description

    A substance used to create gel-like texture in wet pet food, typically derived from plant or seaweed sources.

  • 13 Yeasts
    Plant Protein Concentrate

    Description

    Made from fungus and often used to make beer, a rich source of minerals such as selenium. B-complex vitamins, and chromium. It contains around 40% protein.

    Why Concerned?

    A controversial ingredient, some believe it can support the immune system, while others say it can be linked to allergies and bloating. However, no scientific research can provide a concrete conclusion.

  • 14 Borage Oil
    Fat

    Description

    Purple "Starflow" herb, is well-known for its health-promoting properties. It is high in gamma-linoleic acid (GLA) which is shown to reduce inflammation of the body.

    Why Concerned?

    A controversial vegetable that might cause health issues, unnecessary for the risk.

    Uncertain/Risky

    Contains polyphenol tannin, which binds to proteins and can cause vomiting, diarrhea, dermatitis in a higher dose.

  • 15 Marigold Meal
    Carbs

    Description

    Known as calendula, a flowering plant often used to make tea or herbal medicine. It is packed with antioxidants, and research shows that it reduces oxidative stress from the consumption of MSG (flavor enhancer found in many pet foods).

  • 16 Fructo-oligo-saccharides

    (Detected): Fructo-oligosaccharides

    Prebiotics

    Description

    Known as FOS, a type of fiber derived from chicory roots, beets, or cane. It is added as prebiotics for good bacteria growth in the colon, which aids digestion.

  • 17 Hydrolysed Pork Collagen

    No match found in database

Tips

  • Cat formula needs review: cats rely heavily on animal protein, and this label does not show strong named animal protein near the top.
  • Higher-priority ingredients to review: Cereals, Powdered Cellulose.
  • Higher-caution ingredients: Cereals, Powdered Cellulose, Borage Oil have caution notes in the ingredient database.
  • Possible digestion triggers: Powdered Cellulose have digestion notes; watch tolerance if your pet has a sensitive stomach.

Protein Analysis

How this recipe earned its protein scores.

Protein Clarity

—

This recipe does not list any animal-protein ingredients, so there is no clarity score to break down.

Animal Protein

Low
Low
  • Auxiliary 100%

Protein in Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy leans on plant signals: only 0% comes from animal sources, while plant-protein concentrates make up 0% and whole plant proteins 0%. Plant concentrates like pea or soy isolate are cheap protein boosters but lack the amino-acid profile pets need from meat.

Contributing ingredients

Auxiliary

Yeasts

Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy wet cat food Review

Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy scores 0 stars on this analysis, with low ingredient transparency and limited animal protein content. There are several concerns in this label that may make it a poor fit.

Best for

  • Pets avoiding gluten grains

Avoid if

  • Ingredient transparency is non-negotiable
  • Your cat needs a strongly meat-led recipe

Key takeaways

  • Contains common allergens: Fish.
  • On a dry-matter basis: 54% protein, 25% fat, 6% estimated carbohydrates.
  • Free from Gluten grains, Grains (gluten-free), Dairy, Egg, Legumes, Nuts, Poultry, Red meat, Shellfish, Unknown Meal.
  • Overall rating: 0 stars, based on transparency, protein source, and macro balance.

Frequently asked questions

Is Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy good for cats?

Based on its label, Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy is hard to recommend — it scores 0 out of 5 stars on Moesonson’s analysis, with low ingredient transparency and limited animal protein content. Both factors come straight from the printed ingredient list, so review the full breakdown of concerns before choosing it for your cat.

Does Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy contain Dairy?

No — based on the printed ingredient list, Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy does not include Dairy or closely related ingredients, so pets sensitive to Dairy can typically avoid that trigger here. Recipes do get reformulated, though, so re-check the packaging before feeding — Moesonson’s reading reflects the label at analysis time.

Does Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy contain Egg?

No — based on the printed ingredient list, Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy does not include Egg or closely related ingredients, so pets sensitive to Egg can typically avoid that trigger here. Recipes do get reformulated, though, so re-check the packaging before feeding — Moesonson’s reading reflects the label at analysis time.

Does Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy contain Legumes?

No — based on the printed ingredient list, Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy does not include Legumes or closely related ingredients, so pets sensitive to Legumes can typically avoid that trigger here. Recipes do get reformulated, though, so re-check the packaging before feeding — Moesonson’s reading reflects the label at analysis time.

Does Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy contain Nuts?

No — based on the printed ingredient list, Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy does not include Nuts or closely related ingredients, so pets sensitive to Nuts can typically avoid that trigger here. Recipes do get reformulated, though, so re-check the packaging before feeding — Moesonson’s reading reflects the label at analysis time.

Is Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy grain-free?

Yes — Royal Canin 15+ Senior Cats Over 15 Years Old Thin Slices in Gravy is grain-free according to its printed ingredient list: no gluten grains (like wheat) and no gluten-free grains (like rice or corn) appear in the recipe. That makes it a candidate for pets with diagnosed grain sensitivities, though grain-free offers no automatic benefit for pets without one.

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