Summary
Leonardo Adult Fish is a dry food formulated for adult cats, particularly those who thrive on fish-based proteins and benefit from enhanced skin and coat support.
Fresh salmon (30%) is the primary ingredient, followed by sea fish meal (12.5%) and low-ash poultry protein (12.5%), resulting in an 85% animal protein ratio relative to total protein.
The carbohydrate sources include rice, maize, and rye, while chia seeds (1.3%) and Antarctic krill (5%) contribute marine omega-3s to support healthy skin and reduce inflammation.
Functional health additives include brewers’ yeast for immune-boosting beta-glucans (PROVITAL), STAY-CLEAN™ for dental health, and pH-CONTROL to help maintain urinary tract function.
The guaranteed analysis shows 32% crude protein and 20% crude fat—an energy-dense formulation ideal for active or long-haired cats, along with 8.5% ash and a moderate 2.3% fiber level.
The vitamin and mineral profile includes taurine (1,400 mg/kg), vitamin C (245 mg), vitamin E (150 mg), and chelated trace minerals to support immune, cardiovascular, and cellular functions.
Pros:
High marine-based protein content: Fresh salmon and sea fish meal supply omega-3-rich animal protein, ideal for cats requiring skin and coat support.
Omega-3 enrichment: Krill (5%) and chia seeds contribute marine-sourced fatty acids that control inflammation and improve coat shine.
High energy profile: With 20% fat and 32% protein, this formula suits active adult cats and those with higher caloric demands, such as long-haired breeds.
Dental and urinary health: STAY-CLEAN™ helps reduce plaque, while pH-CONTROL supports optimal urinary pH to minimize the risk of crystal formation.
Robust antioxidant and vitamin profile: Vitamin C (245 mg/kg), taurine, and lecithin contribute to immune health, metabolism, and cellular protection.
Immune-boosting PROVITAL: Inactivated brewers’ yeast provides beta-glucans to stimulate the immune system and reduce oxidative stress.
Cons:
High ash content: At 8.5%, ash levels are elevated, which may not be suitable for cats with kidney sensitivities or predisposition to urinary issues.
Includes grains: This product contains rice, maize, and rye—ingredients that may not be ideal for cats with grain sensitivities or allergies.
No grain-free option: Although the protein quality is high, the presence of cereals makes this formula unsuitable for strict grain-free feeding regimens.
Relatively high calorie density: Owners of sedentary or indoor cats must portion carefully to avoid unintentional weight gain.
Nutrition
Ingredients
- Fresh salmon 30%
- Rice
- Fish meal from sea fish 12.5%
- Poultry protein, low ash*¹ 12.5%
- Maize
- Poultry fat
- Marine zooplankton (Krill)*² 5%
- Poultry liver*³
- Rye*⁴
- Egg*¹
- and also:
Vitamins and Additives
- Vitamin A 15000 IU
- Vitamin C 245 mg/kg
- Vitamin D3 1500 IU
- Vitamin E 150 mg/kg
- and also:
Technological additives: Lecithin 2,000 mg; Tocopherol extracts from vegetable oils (= natural vitamin E) 80 mg
Guaranteed Analysis
Comments
Notes
Guaranteed Analysis
More products from Leonardo
Alternative Products
We compare key factors such as overall score, life stage, and category, along with core nutritional values like protein, fat, fiber, and metabolizable energy.
While not identical, these products fall within a defined range to offer nutritionally comparable options.

Adult Fish
Product changes
- 3rd Ingredient changed from Fish meal from seafish -> Fish meal from sea fish
- 4th Ingredient changed from Poultry protein (low ash, dried) -> Poultry protein, low ash*¹
- 7th Ingredient changed from Marine zooplankton (ground, Krill) -> Marine zooplankton (Krill)*²
- 8th Ingredient changed from Poultry liver (hydrolysed) -> Poultry liver*³
- 9th Ingredient changed from Rye (malted) -> Rye*⁴
- 10th Ingredient changed from Egg (dried) -> Egg*¹
- 5th Ingredient changed from Corn -> Maize
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How the score is calculated?
The actual calculation of the score is based on sophisticated and advanced algorithm that takes into account multiple parameters.
To simplify the explanation, the calculation is based on three main criteria:
(1) Amount of protein (more is better)
(2) Amount of carbohydrates (less is better)
(3) Quality and source of ingredients.
Based on that 3 main criteria, 9 score calculation rules are used to compare the different foods.
One major assumption is that the closer an ingredient is to the top of the ingredient list, the greater its relative weight and contribution to the food.
In general, cat food is composed of protein, fats, carbohydrates, fibers, vitamins, and minerals.
Protein is the most important component in a cat's diet, and cats primarily get their protein from animal meat.
Fat is a primary source of energy and essential fatty acids.
Carbohydrates are controversial in a cat's diet, as cats are obligate carnivores and typically consume very few carbohydrates.
Fibers play an important role in digestion and food absorption, and vitamins and minerals are essential for different organism functions.
Dry matter values are used to compare the amount of nutrients in different cat foods. This means that moisture is excluded from the equation to provide a more accurate comparison.
Putting all of these and more into a formula results in a product score.
The maximum score a cat food can receive is 100. Points are added or removed based on the score calculation rules.
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