Marpet
Greenfish Cat Adult
Summary
Marpet Greenfish Cat Adult is a dry food formulated for adult cats, aimed at reducing ingredient and nutrient intolerances using a fish-based protein source.
The formula begins with 20% fish meal and 10% fresh fish, providing concentrated and digestible animal protein.
It includes 20% rice and additional corn and peas as digestible carbohydrate sources suitable for cats without grain allergies.
The recipe contains 13.5% crude fat and 30% crude protein, supporting adult maintenance with moderate energy needs.
Omega-3 (0.55%) and omega-6 (3.10%) fatty acids from fish and corn oil help promote skin and coat health.
Dry extracts of milk thistle (1,000 mg/kg), artichoke (2,000 mg/kg), and rosemary (2,000 mg/kg) are included for their liver-supportive and detoxifying roles.
With 6.9% crude ash, 2.5% crude fiber, and 8% moisture, this food meets adult cats’ basic mineral and digestive needs.
The calculated energy density is 3,500 kcal/kg, suitable for moderately active cats.
Pros:
Fish-based protein profile: Starts with 20% fish meal and 10% fresh fish, catering to cats with sensitivities to land-animal proteins.
Botanical extracts for detox support: These include rosemary, artichoke, and milk thistle at measurable levels for liver and antioxidant support.
Essential fatty acids: Delivers omega-3 at 0.55% and omega-6 at 3.10%, promoting healthy skin and a shiny coat.
Wheat-free formulation: Suitable for cats with wheat intolerances or those on exclusion diets.
Balanced macronutrients: 30% protein and 13.5% fat content support lean muscle and energy in adult cats.
Cruelty-free and additive-free: Manufactured without artificial preservatives or dyes, and not tested on animals.
Cons:
Moderate ash content: 6.9% crude ash may be excessive for cats with kidney sensitivities or prone to urinary issues.
High reliance on grains: Contains rice (20%) and corn, which may not be suitable for cats requiring low-carbohydrate diets.
No guaranteed probiotic content: Although yeast is present, no CFU count or probiotic strains are specified.
Lower taurine level: This food provides 1,200 mg/kg of taurine, which is lower than many premium cat foods that supply 2,000–2,500 mg/kg.
Limited novel ingredients: Lacks variety in meat proteins and may not appeal to picky eaters seeking flavor diversity.
No joint support nutrients: Does not include glucosamine, chondroitin, or other mobility-targeted ingredients.
Nutrition
Ingredients
- Fish meal 20%
- Rice 20%
- Corn
- Peas
- Fresh fish 10%
- Corn oils
- Dried beet pulp 2%
- Yeasts
Vitamins and Additives
- Vitamin A 19000 IU
- Vitamin D3 1250 IU
- Vitamin E 160 mg/kg
- and also:
Guaranteed Analysis
Notes
Guaranteed Analysis
More products from Marpet
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.

Greenfish Cat Adult
Product changes
- 2nd Ingredient Value changed from 10% -> 20%
- 6th Ingredient changed from Corn oil -> Corn oils
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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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