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Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe

Nulo

Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe

CatDry

Rating

★︎★︎★︎★︎☆︎ 4.5 / 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.

High
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.

High

Is Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe dry cat food good?

Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe is a dry cat food rated 4.5 stars, with high ingredient transparency and strong animal protein content. The recipe lists most animal ingredients by name and features real muscle meat as a primary protein source. This recipe is free from Gluten grains, Grains (gluten-free), Dairy, Egg, Nuts, Red meat, Shellfish, Unknown Meal but contains Legumes, Poultry, Fish.

Allergy Highlights

Contains:

LegumesPoultryFish

Free From:

Gluten grainsGrains (gluten-free)DairyEggNutsRed meatShellfishUnknown Meal

Pros

  • Uses clearly named animal protein sources for better transparency.
  • Includes plant ingredients that can provide fiber and natural antioxidants.
  • Uses mainly organic mineral sources, which are typically better absorbed.

Nutrition Breakdown

  • Protein 44%
  • Fat 19%
  • Est. Carbs 23%
  • Fiber 6%
  • Ash 8%

Moisture (10%) removed so you can compare foods fairly.

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

  • Protein 40%
  • Fat 17%
  • Est. Carbs 21%
  • Fiber 5%
  • Moisture 10%
  • Ash 7%

Ash value not listed on label; 7% used as a standard estimate.

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

Tips

  • Protein is High (44% dry matter) on our label-based comparison range. This is generally more aligned with cats' higher protein needs than lower-protein recipes, assuming the food is complete for the cat's life stage.

    Understanding High Protein (40% - 50% Dry Matter)

    Protein-Forward Profile This bucket suggests the food is protein-forward for the selected species. The cat threshold is intentionally higher than the dog threshold because cats generally need more protein than dogs.

    Check Species and Life Stage Growing, pregnant, nursing, senior, or medically managed pets can have different targets. The adequacy statement and your vet's advice matter more than this bucket alone.

  • Fat is High (19% dry matter) on our label-based comparison range. It can raise calorie density, so watch body condition and seek vet input for cats with pancreatitis or digestive disease.

    Understanding High Fat (16% – 22% Dry Matter)

    Higher Calorie Density This range can support pets with higher energy needs, but it can also make overfeeding easier. Portion size, total calories, and body condition matter.

    Pancreatitis and Digestive History For dogs with pancreatitis history, fat level is often reviewed carefully. For cats, fat is only one part of the decision. Use this as a flag for vet-guided review, not as an automatic rejection.

Ingredients Analysis

37 of 37 matched

  • 1 De-boned Duck

    (Detected): Deboned Duck

    Animal Protein

    Description

    A novel animal protein source in pet foods. Other than protein, it is also rich in vitamin B3, B2, selenium, phosphorus, iron, zinc, and copper.

    Why Prefer?

    A high-quality animal protein with high digestibility and biological value.

  • 2 Chicken Meal
    Animal Protein

    Description

    A dehydrated form of chicken, it is a meat concentrate that contains up to 4 times more protein than fresh chicken on dry matter basis.

    Why Prefer?

    A high-quality animal protein with high digestibility and biological value.

  • 3 Turkey Meal
    Animal Protein

    Description

    A large bird looks similar to chicken, high in protein, and packed with vitamin B3, B6, B12, selenium, zinc, and phosphorus.

    Why Prefer?

    A high-quality animal protein with high digestibility and biological value.

  • 4 Deboned Cod
    Animal Protein

    Description

    A popular white fish that is high in protein, omega 3s and low in mercury.

    Why Prefer?

    A high-quality animal fat with high digestibility and biological value.

  • 5 Whole Peas
    Carbs Plant Protein

    Description

    A type of legume that is added to boost up the protein content and acts as an alternative carb. It contains around 22% protein.

    Digestion Concern

    Legume contains oligosaccharides, which is a 3 - 5 carbon short-chain sugar that are indigestible by dogs / cats.

  • 6 Lentils
    Carbs Plant Protein

    Description

    A type of legume that is added to boost up the protein content and acts as an alternative carb. It contains around 27% protein.

    Digestion Concern

    Legume contains oligosaccharides, which is a 3 - 5 carbon short-chain sugar that are indigestible by dogs / cats.

  • 7 Chicken Fat
    Fat

    Description

    The fatty layer separated during the cooking process, with a high level of omega 6, It is more preferable by dogs and cats over other types of fats.

    Why Prefer?

    A high-quality animal fat with high digestibility and biological value.

  • 8 Pea Fiber
    Carbs

    Description

    Produced by separating the starch of peas from fiber, consists mainly of insoluble fiber, contains around 6 - 12% protein.

    Why Concerned?

    A controversial filler with limited nutrition value to dogs / cats.

    Digestion Concern

    Legume contains oligosaccharides, which is a 3 - 5 carbon short-chain sugar that are indigestible by dogs / cats.

  • 9 Natural Flavor
    Food Additive

    Description

    Made of extracts from plant or animal sources to improve the taste of food.

    Why Concerned?

    Contrary to its name, natural flavors are highly processed and contain many chemical additives.

  • 10 Ground Flaxseed
    Fat

    Description

    One of the richest sources of plant-based omega 3s, well known for its anti-inflammatory properties. It contains around 41% of fat, 57% of the total fatty acids is omega 3s.

  • 11 Dried Chicory Root
    Carbs

    Description

    Contains insulin, which is a prebiotic that promotes friendly bacteria in the gut and supports better digestion.

  • 12 Dried Kelp
    Carbs

    Description

    An excellent source of various minerals including calcium, iron, magnesium. Rich in rare mineral iodine essential for healthy thyroid function.

  • 13 Dried Sweet Potato
    Carbs

    Description

    An alternative high carbs filler with an excellent amount of vitamin A, C, B6.

  • 14 Dried Cranberries
    Carbs

    Description

    High in vitamin C and antioxidants, it is also best known for fighting Urinary Tract Infections. While it could be true for humans, the effect on pets is yet to be confirmed by further research.

  • 15 Calcium Carbonate
    Supplement

    Description

    An inorganic form of calcium, it is essential in the formation of bones / teeth and different cellular functions. Compare to organic form, it has 5 - 15% less absorption rate to the body.

  • 16 Dl-methionine
    Supplement

    Description

    Added to balance the amino acids profile of pet foods with limited amounts of meat protein. Meat / fish naturally contains methionine, which does not require extra supplements. It is sometimes used to help support urine acidification.

    Why Concerned?

    A safe supplement to improve the completeness of essential amino acids profile (the building block of protein). However, it could imply the lack of meat protein - usually in lower quality pet foods.

  • 17 Taurine
    Supplement

    Description

    An essential amino acid (building blocks of protein) to maintain a healthy brain and heart functions.

    Why Prefer?

    A safe supplement to improve the completeness of essential amino acids profile (the building block of protein).

  • 18 Zinc Proteinate
    Supplement

    Description

    An organic form of zinc, which is vital in skin function and wound healing, cell replication, the structure and function of biological membranes. Compare to inorganic form, it has 5 - 15% more absorption rate to the body.

  • 19 Choline Chloride
    Supplement

    Description

    Vital molecule for various functions in the body, lack of choline can result in weight loss, vomiting, and fatty liver.

  • 20 Vitamin E Supplement
    Supplement

    Description

    Supplement for vitamin E, which is an important antioxidant that protects oxidative damages on cellular membranes by free radicals. A deficiency will result in symptoms like anorexia, depression, and dermatitis.

  • 21 L-ascorbyl-2-polyphosphate
    Supplement

    Description

    Supplement for vitamin C, which can help to prevent oxidative damages by radicals, maintain healthy skin, and boost the immune system.

  • 22 Iron Proteinate
    Supplement

    Description

    An organic form of iron. It is essential for the transport and movement of oxygen around the body. Compare to inorganic form, it has 5 - 15% more absorption rate to the body.

  • 23 Niacin Supplement
    Supplement

    Description

    Known as vitamin B3, essential to maintain healthy GI tracts, skin/coat, and nervous system.

  • 24 Copper Proteinate
    Supplement

    Description

    An organic form of copper, which is important for the production of blood cells, hair coat color pigmentation, and maintaining the nervous system. Compare to inorganic form, it has 5 - 15% more absorption rate to the body.

  • 25 Thiamine Mononitrate
    Supplement

    Description

    An organic form of thiamine, has 5 - 15% more absorption rate than the inorganic form. It is important for energy production and glucose metabolism.

  • 26 Calcium Pantothenate
    Supplement

    Description

    An organic form of calcium, it is essential in the formation of bones / teeth and different cellular functions. Compare to inorganic form, it has 5 - 15% more absorption rate to the body.

  • 27 Vitamin A Supplement
    Supplement

    Description

    Supplement of vitamin A, it is essential for healthy skin, normal vision, and immune function.

  • 28 Manganese Proteinate
    Supplement

    Description

    An organic form of manganese that has 5 - 15% higher absorption rate than the inorganic form. It is essential for normal metabolic function with the body.

  • 29 Pyridoxine Hydrochloride
    Supplement

    Description

    A synthetical supplement of vitamin B6, which is an essential element for nearly every part of metabolism.

  • 30 Sodium Selenite
    Food Additive

    Description

    An inorganic selenium supplement. It remains controversial as the long term effect of consuming it is not known, and there is a much safer organic alternative available.

    Why Concerned?

    A food additive that is likely to be safe but unnecessary.

  • 31 Riboflavin Supplement
    Supplement

    Description

    A synthetic supplement for vitamin B2. which is vital for the body's metabolism and health.

  • 32 Dried Bacillus Coagulans Fermentation Product
    Probiotics

    Description

    A type of probiotics, good bacteria that promotes good digestion and overall health. Bacillus coagulans is often taken by humans to treat bowel syndrome (IBS) and diarrhea.

  • 33 Yucca Schidigera Extract
    Carbs

    Description

    Yucca schidigera is a desert plant found in the arid southwestern US and Mexico. It has been shown to reduce fecal aroma (poop's smell) without any harmful effect.

  • 34 Vitamin B12 Supplement
    Supplement

    Description

    Supplement for vitamin B12, which is vital for carbon transfer and propionate metabolism. A deficiency will result in symptoms similar to gastrointestinal disorders, such as diarrhea and weight loss.

  • 35 Calcium Iodate
    Supplement

    Description

    An inorganic form of calcium, it is essential in the formation of bones / teeth and different cellular functions. Compare to organic form, it has 5 - 15% less absorption rate to the body.

  • 36 Folic Acid
    Supplement

    Description

    A synthetic form of folate, which is also known as vitamin B9. It plays an important role to support the body's functions, such as cell growth.

  • 37 Rosemary Extract
    Carbs

    Description

    A common herb used for cooking, it is rich in antioxidants to fight off radical damages in the body.

Tips

  • Named animal proteins near the top: De-boned Duck, Chicken Meal are listed early in the ingredient panel.
  • Plant protein is worth closer review for cats: Whole Peas, Lentils may raise the listed protein percentage without meaning there is more meat.
  • Ingredients worth checking: Pea Fiber, Natural Flavor, Dl-methionine.
  • Possible digestion triggers: Whole Peas, Lentils, Pea Fiber have digestion notes; watch tolerance if your pet has a sensitive stomach.

Protein Analysis

How this recipe earned its protein scores.

Protein Clarity

High
High
  • Named 100%

Strong clarity: 100% of Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe's animal-protein ingredients are clearly named (like chicken or salmon). Only 0% use vague terms such as "meat meal" and 0% are by-products. Named protein ingredients let you verify the source and check for allergens.

Contributing ingredients

Named

De-boned Duck Chicken Meal Turkey Meal Deboned Cod

Animal Protein

High
High
  • Animal 90%
  • Plant 10%

Meat-forward: 90% of the weighted protein in Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe comes from animal sources. Plant signals are modest (10% whole plants, 0% plant concentrates), so the protein profile leans on real meat.

Contributing ingredients

Animal

De-boned Duck Chicken Meal Turkey Meal Deboned Cod

Plant

Whole Peas Lentils

Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe dry cat food Review

Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe is a strong choice — rated 4.5 stars with high ingredient transparency and strong animal protein content. A confident pick when the ingredient panel matches your pet's needs.

Best for

  • Owners who want clearly named protein sources
  • Pets avoiding gluten grains
  • Pets that thrive on muscle-meat protein

Avoid if

  • You're avoiding legumes

Key takeaways

  • Named animal proteins make up 100% of the recipe's protein panel — a clear sourcing win.
  • Contains common allergens: Legumes, Poultry, Fish.
  • On a dry-matter basis: 44% protein, 19% fat, 23% estimated carbohydrates.
  • 90% of the weighted protein comes from animal sources.
  • Free from Gluten grains, Grains (gluten-free), Dairy, Egg, Nuts, Red meat, Shellfish, Unknown Meal.

Frequently asked questions

Is Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe good for cats?

Yes — rated 4.5 stars, with high ingredient transparency and strong animal protein content.

Does Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe contain Dairy?

No — based on the ingredient list, Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe doesn't include Dairy or related ingredients, so pets sensitive to Dairy can typically avoid this allergen here.

Does Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe contain Egg?

No — based on the ingredient list, Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe doesn't include Egg or related ingredients, so pets sensitive to Egg can typically avoid this allergen here.

Does Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe contain Legumes?

Yes — based on the ingredient list, Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe contains Legumes, so pets sensitive to Legumes should generally avoid this product or consult a vet first.

Does Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe contain Nuts?

No — based on the ingredient list, Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe doesn't include Nuts or related ingredients, so pets sensitive to Nuts can typically avoid this allergen here.

Is Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe grain-free?

Yes — there are no grains in this recipe.

What are the main protein sources in Nulo Freestyle Grain-Free Indoor Cat Duck & Lentils Recipe?

The top animal proteins are De-boned Duck, Chicken Meal, Turkey Meal — clearly named, so you can verify the source.

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