Label analysisGrade DListed ingredientsKibble (Extruded)

Natural Core

Natural Core Eco2 Hypoallergenic Duck

Editor ingredient insight

Natural Core Eco2 Duck combines hydrolyzed duck with grains. At 24% protein and 12% fat, it is worth considering for adults whose owners want duck as the main protein without high declared fat.

Chicken-derived ingredients make it unsuitable for strict chicken avoidance. Despite its all-life-stages label, clarify the basis and actual balance of the stated 0.9% calcium and 0.4% phosphorus before choosing it for growth.

Meal-basedPlant booster present
Illustration of grains and vegetables beside a dog-food bowl
Grain and vegetable illustration

01. NUTRIENT PROFILE

Key nutrients & mineral profile

As-fed basis
Disclosed protein and fat
Protein 24%Fat 12%Other 64%Other includes moisture, ash and remaining components.
Position within the same processing type

Compare protein, fat and energy density in low, typical and high bands.

Protein positionTypical

This food sits around the typical crude protein range among extruded foods.

Fat positionTypical

This food sits around the typical crude fat range among extruded foods.

Calorie densityLower

This food is on the lower side for calorie density among extruded foods. That alone does not make it a weight-management diet; check portion guidance, fat, and fiber together.

Key guaranteed nutrientsAs-fed
Calcium0.9%
Phosphorus0.4%
Crude fiber6%
Omega-3Not disclosed
Omega-6Not disclosed

Undisclosed values are not treated as zero.

02. INGREDIENT QUALITY & DISCLOSURE

Disclosed ingredients & ingredient grade

The analysis uses the registered ingredients. Complete-panel coverage is not verified, so an unlisted ingredient cannot be assumed absent.

Listed ingredients

Read the listed ingredients below. Complete-panel coverage is not verified here; do not infer that an unlisted ingredient is absent.

Grains and vegetables ingredient illustration
Grain and vegetable illustration
C3/6Ingredient gradeMixed
Ingredient #1 · Hydrolyzed Duck MeatUpper
Named Meal
Ingredient #2 · Organic Whole BarleyMid
Whole Grain
Ingredient #3 · Organic Brown RiceUpper
Whole Grain
Ingredient #1Upper

Hydrolyzed Duck Meat

Hydrolyzed Duck Meat is a species-named animal meal ingredient. It is rendered rather than fresh, but the species source is still clearly identified. It reads as an upper-tier protein source.

Ingredient #2Mid

Organic Whole Barley

Organic Whole Barley is a whole or coarse grain ingredient. It usually plays more of a carbohydrate and fiber role than a core protein role. It reads as an mid-tier carb source.

Ingredient #3Upper

Organic Brown Rice

Organic Brown Rice is a whole or coarse grain ingredient. It usually plays more of a carbohydrate and fiber role than a core protein role. It reads as an upper-tier carb and fiber source.

Available ingredient listIn disclosed order
Hydrolyzed Duck Meat — Support positive ingredientsOrganic Whole Barley — Neutral ingredientsOrganic Brown Rice — Neutral ingredientsOrganic Mung Bean — Caution ingredientsOrganic Sunflower Seeds — Neutral ingredientsOrganic Pea — Caution ingredientsOrganic Sweet Potato — Neutral ingredientsOrganic Whole Flax Seeds — Neutral ingredientsChicken Fat — Neutral ingredientsFish Oil — Support positive ingredientsBeet Pulp — Support positive ingredientsYucca Schidigera Extract — Support positive ingredientsRed Ginseng — Neutral ingredientsSun Dried Salt — Neutral ingredientsMethionine — Neutral ingredientsOrganic Whole Oats — Neutral ingredientsFructooligosaccharide — Support positive ingredientsHydrolyzed Green Lipped Mussel Complex (source of Collagen and Chondroitin) — Support positive ingredientsLactobacillus spp. — Support positive ingredientsLactobacillus Dried Powder — Support positive ingredientsSea Buckthorn Fruits — Neutral ingredientsEvening Primrose Seeds — Neutral ingredientsCarrot — Neutral ingredientsCoriander — Neutral ingredientsSpinach — Neutral ingredientsGlucosamine — Support positive ingredientsAscorbic Acid — Neutral ingredientsEPA-DHA — Support positive ingredientsCalcium Phosphate — Neutral ingredientsVitamin C — Neutral ingredientsVitamin E — Support positive ingredientsVitamin A — Neutral ingredientsVitamin D3 — Neutral ingredientsVitamin B1 — Neutral ingredientsVitamin B2 — Neutral ingredientsVitamin B6 — Neutral ingredientsVitamin B12 — Neutral ingredientsBiotin — Support positive ingredientsPantothenic Acid — Neutral ingredientsFolic Acid — Neutral ingredientsNicotinic Acid — Neutral ingredientsFe (iron) — Neutral ingredientsCu (copper) — Neutral ingredientsZn (zinc) — Support positive ingredientsSe (selenium) — Support positive ingredientsMn (manganese) — Neutral ingredientsI (iodine) — Support positive ingredients
Primary positive ingredientsSupport positive ingredientsAlternative proteinNeutral ingredientsCaution ingredientsHigh-caution ingredients
Protein sourceIngredient guide

Whole plant protein source observed early

Animal protein · Hydrolyzed Duck Meat (#1)

Plant protein · Organic Mung Bean (#4), Organic Pea (#6)

The protein number may include influence from whole plant ingredients.

This is not treated like processed protein boosting, but it is worth checking.

Included support ingredientsNutrient guide
Fish oilSkin and joint support ingredientYucca extractStool odor support ingredientFOSGut support ingredientGreen-lipped musselJoint support ingredientProbioticsGut support ingredientGlucosamineJoint support ingredientEPA+DHASkin, joint, and heart support ingredient

03. CHOOSING FOR YOUR DOG

What to consider before feeding

Hydrolyzed Duck Meat supply animal protein at the start of the ingredient list. Organic Whole Barley, Organic Brown Rice supply carbohydrate energy. The recipe combines animal protein sources with carbohydrate sources.

Organic Mung Bean, Organic Pea contribute plant protein alongside carbohydrates and fiber further down the ingredient list. Total crude protein is not a measure of meat-derived protein alone. Organic Whole Flax Seeds add fat and energy; fat content is a separate choice criterion from the protein sources.

What works well in this food

  • Crude protein does not drop into a clearly low band.
  • Calorie density is on the lower side.
  • Nutrient disclosure is broad enough to compare real numbers directly.

Check before feeding

  • Whole plant protein sources can contribute to crude protein, so the animal-protein share still needs a closer read.
  • Calcium:Phosphorus Ratio (2.25:1, reference 1.1~1.6:1): Calcium is relatively high here.
  • Species-named meals supply protein with less moisture. Their position cannot establish a meat-percentage or digestibility advantage over fresh meat because moisture levels differ.

When this food fits your dog

Among foods made the same way, protein is typical, fat is typical, and calorie density is lower. This is a candidate for reducing calories per gram. Fat is not also lower, so a weight-management choice still needs fiber, portions and total daily calories including treats to be considered together.

Consider it first when

  • Budget matters
  • Baseline nutrition still comes first
  • Ingredient quality comes after value

Choose another food first when

  • Fresh-meat-first quality matters more
  • Ingredient quality matters more than budget

Plant-protein concentration remains the clearest trade-off here.

04. COMPARE FOODS

Smart duck alternatives

Exact protein-type matches come first, then close protein-family matches fill the comparison.

05. MANUFACTURING & DISCLOSURE

Manufacturer background & public information

Natural Core background

Founded in 2009 in South Korea.

Disclosure confidence C2

Detailed nutrition is visible, but not at a product-level traceability standard.

Recall information

The currently searched public sources are not enough to make a confident recall or withdrawal call for this brand.

May 12, 2026

Final word

Interpret this for my dog

The food-first public score is only the starting point. Once your dog’s activity, weight goals, life stage, and health status are applied, the recommendation order and interpretation can change.

Treat this review as an early screen. If the food stays interesting, verify it again with your dog-specific context before acting.