Diamond Naturals Lamb & Rice Adult Dry Dog Food 40 lb

Common questions

Is Diamond Naturals Lamb & Rice Adult Dry Dog Food 40 lb healthy?

Diamond Naturals Lamb & Rice Adult Dry Dog Food 40 lb scores 65/100 on Scout's independent analysis of ingredients, additives, and lab results — a fair-to-good score — solid, with tradeoffs. This dog food contains several high-quality ingredients such as lamb meal, cracked pearled barley, and egg product, which provide essential nutrients and protein.

How processed is Diamond Naturals Lamb & Rice Adult Dry Dog Food 40 lb?

Diamond Naturals Lamb & Rice Adult Dry Dog Food 40 lb is NOVA Group 4: Ultra-Processed Foods.

Which ingredients drive Diamond Naturals Lamb & Rice Adult Dry Dog Food 40 lb's score?

In Scout's ingredient-by-ingredient analysis, Lamb meal, Cracked pearled barley, Grain sorghum count in its favor; Natural flavor is flagged as an ingredient of concern. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

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Diamond Naturals Lamb & Rice Adult Dry Dog Food 40 lb

65 Fair

Analysis updated August 2026 · How Scout scores

$43.99 · 40 lb · $1.10 / lb
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At a glance

Beneficial ingredients 10
Harmful ingredients 1
Category Pet Food
Summary

This dog food contains several high-quality ingredients such as lamb meal, cracked pearled barley, and egg product, which provide essential nutrients and protein. However, it is classified as ultra-processed due to the inclusion of natural flavor and the overall processing level, which limits its score. Despite the beneficial ingredients, the presence of vague additives like natural flavor and the high processing level prevent it from achieving a higher rating.

Key ingredients 13

Flaxseed
Very Good

Flaxseed is a rich source of omega-3 fatty acids and fiber. It is minimally processed, retaining its nutritional benefits. Flaxseed supports heart health and aids in digestion.

Benefits

Provides omega-3 fatty acids and fiber, promoting heart health and digestive function.

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Lamb meal
Good

Lamb meal is a concentrated source of protein and essential amino acids. It is made by rendering lamb meat to remove moisture, resulting in a nutrient-dense ingredient. This process ensures a high protein content beneficial for muscle maintenance.

Benefits

Provides high-quality protein and essential nutrients that support muscle health and overall well-being.

Cracked pearled barley
Good

Cracked pearled barley is a whole grain that provides fiber and essential nutrients. The pearling process removes some of the outer layers, making it easier to digest while retaining nutritional benefits. It supports digestive health and provides sustained energy.

Benefits

Rich in fiber, which aids in digestion and helps maintain stable blood sugar levels.

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Grain sorghum
Good

Grain sorghum is a gluten-free whole grain that offers fiber and antioxidants. It is minimally processed, retaining its nutritional profile. Sorghum supports digestive health and provides a source of energy.

Benefits

Contains antioxidants and fiber, promoting digestive health and providing energy.

Egg product
Good

Egg product is a high-quality protein source rich in essential amino acids. It is processed to remove shells and pasteurized for safety. Eggs support muscle maintenance and provide essential nutrients like choline.

Benefits

Provides complete protein and essential nutrients that support muscle health and cognitive function.

Dried yeast
Good

Dried yeast is a source of B vitamins and protein. It is deactivated and dried, making it a safe and nutritious ingredient. Yeast supports immune function and provides essential nutrients.

Benefits

Rich in B vitamins and protein, supporting immune health and energy metabolism.

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Chicken fat
Good

Chicken fat is a source of energy and essential fatty acids. It is preserved with mixed tocopherols, a natural antioxidant. This fat supports skin and coat health in dogs.

Benefits

Rich in essential fatty acids that promote healthy skin and coat.

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Dried chicory root
Good

Dried chicory root is a source of inulin, a prebiotic fiber. It is dried to preserve its prebiotic properties, supporting gut health. Chicory root aids in digestion and promotes beneficial gut bacteria.

Benefits

Supports digestive health by promoting beneficial gut bacteria through its prebiotic fiber content.

Kale
Good

Kale is a nutrient-dense leafy green rich in vitamins A, C, and K. It is minimally processed, retaining its nutritional profile. Kale supports immune function and provides antioxidants.

Benefits

Rich in vitamins and antioxidants, supporting immune health and reducing oxidative stress.

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Pumpkin
Good

Pumpkin is a source of fiber and beta-carotene. It is minimally processed, retaining its nutritional benefits. Pumpkin supports digestive health and provides antioxidants.

Benefits

Provides fiber and beta-carotene, supporting digestive health and providing antioxidant benefits.

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White rice
Neutral

White rice is a carbohydrate source that provides energy. It is processed to remove the bran and germ, which reduces fiber content. While it offers energy, it lacks the nutritional density of whole grains.

Risks

May contribute to blood sugar spikes due to high glycemic index.

Benefits

Provides a quick source of energy and is easily digestible.

Rice bran
Neutral

Rice bran is a byproduct of rice milling that contains fiber and essential fatty acids. It is minimally processed, retaining its nutritional components. While it provides fiber, it is less nutrient-dense than whole grains.

Risks

May contain residual pesticides if not organically sourced.

Benefits

Provides dietary fiber and essential fatty acids, supporting digestive health.

Natural flavor
Bad

Natural flavor is a catch-all term for flavoring agents derived from natural sources. It is often used to enhance taste but lacks transparency about specific ingredients. This can be concerning for those with allergies or sensitivities.

Risks

Potential allergen risk due to unspecified ingredients.

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Processing

Group 4 · Ultra-processed

Ultra-Processed Foods

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