Diamond Pet Foods Large Breed Puppy Lamb & Rice Formula

Dry Extruded complete

50out of 100

Average

our rating

Is Diamond Pet Foods Large Breed Puppy Lamb & Rice Formula a good dog food?

We score it 50/100 (Average). This reflects the ingredient quality, composition and label transparency of the recipe as declared on the label.

How we score

Why this score?

This recipe achieves an overall rating of 50 out of 100. The inclusion of ingredients without printed percentages contributed -10.6 points, and the processing format adjusted the score by -6.7. Conversely, the overall quality of the ingredient list added +6.4 points, while being labelled nutritionally complete contributed +2.3 points to the final evaluation.

Only part of the analytical constituents are declared, so the nutritional picture is incomplete.

100% of this recipe has no printed percentage. Estimated shares are model estimates, not label facts.

Recipe
50
Nutritionallow
100
Transparency
55
Safety
100
Evidence
Not recorded

The Recipe score measures how attractive and transparent the declared ingredient list is. It is not, by itself, proof that the food is nutritionally appropriate for long-term feeding. The Nutritional and Evidence scores measure what we can verify towards that stronger claim.

Why you might choose it

Declares energy content, which most labels omit.
Nutritionally complete: formulated to be fed as the whole diet.

Why you might not

Meat makes up an estimated 7% of the dry matter (9% as fed); carbohydrates dominate.
100% of the recipe mass has no printed percentage, so the exact split cannot be verified.

View the source page

Estimated composition

supplement47.0%

veg21.2%

carb10.3%

meat8.5%

oil4.1%

additive4.0%

fibre2.0%

unknown1.5%

mineral1.5%

Typical analysis (as fed)

Protein: 27%
Fat: 15%
Fibre: 3.50%
Moisture: 10%
Omega-3 fatty acids: 0.30%
Omega-6 fatty acids: 2%
Calcium: 1.20%
Phosphorus: 1%

Energy: 365 kcal/100g

Additives & feeding info

Nutritional additives

Iron proteinate; Zinc proteinate; Copper proteinate; Ferrous sulfate; Zinc sulfate; Manganese sulfate; Copper sulfate; Potassium iodide; Thiamine mononitrate; Manganese proteinate; Vitamin A supplement 10,000 IU/kg minimum; Biotin; Niacin; Calcium pantothenate; Sodium selenite; Pyridoxine hydrochloride; Vitamin B12 supplement; Riboflavin; Vitamin D3 supplement; Folic acid; Vitamin E supplement 150 IU/kg minimum; Beta carotene; Choline chloride; DL-Methionine; Taurine 0.12% minimum; L-Carnitine 300 mg/kg minimum

Technological additives

Mixed tocopherols (preservative in chicken fat); Yucca schidigera extract

Feeding guide

Standard Measuring Cups Per Day by current weight (lbs.) and age: 10 lb – 2-4 months: 1¼; 4-8 months/8-12 months/Adult: –; 20 lb – 2-4 months: 2, 4-8 months: 1¼; 30 lb – 2-4 months: 2⅔, 4-8 months: 2¼; 40 lb – 2-4 months: 3⅔, 4-8 months: 3; 50 lb – 2-4 months: 4½, 4-8 months: 3¾, 8-12 months: 3; 60 lb – 2-4 months: 5¼, 4-8 months: 4¼, 8-12 months: 3¼; 80 lb – 2-4 months: 6¼, 4-8 months: 5; 100 lb – 4-8 months: 4¾; 125 lb – 4-8 months: 5; 150 lb – 8-12 months: 6⅓; 175 lb – 8-12 months: 7¼. For pregnant or nursing adult dogs, we recommend free-choice feeding.

Reviews

Trustpilot: 0.0/5 · 0 reviews

Who is this food for?

Suits

Labelled by the manufacturer for puppies
Labelling or feeding guide is aimed at large dogs
Doesn't list beef, turkey, venison, pork, duck as ingredients

Consider something else if:

Your dog avoids chicken: the label lists chicken oil and fat
Your dog avoids lamb: the label lists lamb
Your dog avoids fish: the label lists fish meal
Your dog avoids grain: the label lists whole grains
You want a single-protein recipe: this one lists more than one animal protein

These points are derived from declared ingredients and analysis, not a substitute for veterinary advice. If your dog has a diagnosed condition, food choice is a medical nutrition decision: speak to your vet. Use the homepage filter to find foods that fit your dog.

Ingredients (60)

#	As declared	Matched	Category	Tier	Declared %	Est. %
1	Lamb	Lamb	meat	medium	-	2.2
2	lamb meal	Lamb	meat	medium	-	2.2
3	whole grain brown rice	Whole Grains	carb	good	-	2.2
4	cracked pearled barley	Barley	carb	medium	-	2.2
5	grain sorghum	Sorghum	carb	medium	-	2.1
6	dried yeast	Yeast	supplement	good	-	2.1
7	egg product	Egg	meat	good	-	2.1
8	chicken fat (preserved with mixed tocopherols)	Chicken Oil and Fat	oil	medium	-	2.1
9	white rice	Rice - white	carb	medium	-	2.1
10	fish meal	Fish Meal	meat	medium	-	2.0
11	dried tomato pomace	Tomato Pomace	fibre	medium	-	2.0
12	natural flavor	Flavor	additive	poor	-	2.0
13	flaxseed	Linseed	veg	good	-	2.0
14	salmon oil	Salmon Oil	oil	good	-	2.0
15	salt	Salt	additive	medium	-	2.0
16	DL-Methionine	Methionine	supplement	good	-	1.9
17	potassium chloride	Potassium Chloride	supplement	medium	-	1.9
18	choline chloride	Choline	supplement	good	-	1.9
19	taurine	Taurine	supplement	good	-	1.9
20	dried chicory root	Chicory root	veg	good	-	1.9
21	L-Carnitine	L-Carnitine	supplement	medium	-	1.8
22	kale	Kale	veg	good	-	1.8
23	chia seed	Chia Seeds	veg	good	-	1.8
24	pumpkin	Pumpkin	veg	good	-	1.8
25	blueberries	Blueberries	veg	good	-	1.8
26	oranges	Orange	veg	medium	-	1.7
27	quinoa	Quinoa	carb	good	-	1.7
28	dried kelp	Kelp	veg	good	-	1.7
29	coconut	Coconut	veg	good	-	1.7
30	spinach	Spinach	veg	good	-	1.7
31	carrots	Carrots	veg	good	-	1.7
32	papaya	Papaya	veg	good	-	1.6
33	yucca schidigera extract	Yucca Schidigera	supplement	good	-	1.6
34	dried Lactobacillus plantarum fermentation product	Lactobacillus plantarum	supplement	good	-	1.6
35	dried Bacillus subtilis fermentation product	Bacillus Subtilis	supplement	good	-	1.6
36	dried Lactobacillus acidophilus fermentation product	Dried Lactobacillus acidophilus Fermentation Product	supplement	good	-	1.6
37	dried Enterococcus faecium fermentation product	Enterococcus Faecium	supplement	good	-	1.5
38	dried Bifidobacterium animalis fermentation product	unmatched	-	-	-	1.5
39	vitamin E supplement	Vitamin E	supplement	good	-	1.5
40	beta carotene	Beta Carotene	supplement	good	-	1.5
41	iron proteinate	Iron Proteinate	mineral	good	-	1.5
42	zinc proteinate	Zinc Proteinate	supplement	good	-	1.5
43	copper proteinate	Copper proteinate	supplement	good	-	1.4
44	ferrous sulfate	Iron sulfate	supplement	good	-	1.4
45	zinc sulfate	Zinc sulfate	supplement	medium	-	1.4
46	manganese sulfate	Manganese sulfate	supplement	medium	-	1.4
47	copper sulfate	Copper sulphate	supplement	good	-	1.4
48	potassium iodide	Potassium iodide	supplement	good	-	1.3
49	thiamine mononitrate	Thiamine mononitrate	supplement	good	-	1.3
50	manganese proteinate	Manganese proteinate	supplement	good	-	1.3
51	vitamin A supplement	Vitamin A	supplement	good	-	1.3
52	biotin	Biotin	supplement	good	-	1.3
53	niacin	Niacin	supplement	good	-	1.3
54	calcium pantothenate	Calcium pantothenate	supplement	good	-	1.2
55	sodium selenite	Sodium selenite	supplement	poor	-	1.2
56	pyridoxine hydrochloride	Pyridoxine hydrochloride	supplement	good	-	1.2
57	vitamin B12 supplement	Vitamin B12	supplement	good	-	1.2
58	riboflavin	Riboflavin	supplement	good	-	1.2
59	vitamin D3 supplement	Vitamin D3 supplement	supplement	good	-	1.1
60	folic acid.	Folic acid	supplement	good	-	1.1

Brand

Website: https://www.diamondpet.com/
Phone: 866-214-6945
Contact page: www.diamondpet.com

Trust and provenance

Recall history: No recalls recorded in our database
Label data last checked: 2026-09-12
Scored with: Model v3 (methodology)
Product page: www.diamondpet.com

Recall history is presentation-only and never affects the score. Dates are when we recorded the data, not when the manufacturer last changed the recipe.

Spotted a mistake in this listing? Report it here and we'll take a look.

Recipe: how the 1-100 score is calculated

Scored with model v3 on 2026-09-26. Each component is the feature value for this product multiplied by the model's published coefficient.

Component	Input	Coefficient	Contribution
Base score	-	30.909	+30.91
Average ingredient quality	0.7	9.191	+6.43
Carb share of dry matter	11.6%	-0.115	-1.34
Oil share of dry matter	5.2%	-0.092	-0.48
Vegetable share of dry matter	11.2%	-0.005	-0.06
Additive share of dry matter	4.6%	0.163	+0.75
Supplement share of dry matter	55.7%	-0.012	-0.68
Unrecognised share of dry matter	1.0%	-0.027	-0.03
Recipe graded poor	3.2%	-0.065	-0.21
Number of poor ingredients	2	-0.876	-1.75
Largest single poor ingredient	2.0%	0.060	+0.12
Undeclared quantities	100.0%	-0.106	-10.56
Complete diet	yes	2.294	+2.29
Low meat (under 10% of dry matter)	yes	-3.158	-3.16
Additive penalty	-4.79	0.222	-1.06
Processing multiplier	0.98	33.786	+33.11
Processing: Dry Extruded	yes	-6.713	-6.71

Show all 40 components

Component	Input	Coefficient	Contribution
Base score	-	30.909	+30.91
Average ingredient quality	0.7	9.191	+6.43
Meat share of dry matter	0.0%	0.096	+0.00
Carb share of dry matter	11.6%	-0.115	-1.34
Oil share of dry matter	5.2%	-0.092	-0.48
Vegetable share of dry matter	11.2%	-0.005	-0.06
Additive share of dry matter	4.6%	0.163	+0.75
Supplement share of dry matter	55.7%	-0.012	-0.68
Other share of dry matter	0.0%	-0.375	+0.00
Unrecognised share of dry matter	1.0%	-0.027	-0.03
Recipe graded poor	3.2%	-0.065	-0.21
Poor-quality meat in recipe	0.0%	-0.179	+0.00
Number of poor ingredients	2	-0.876	-1.75
Largest single poor ingredient	2.0%	0.060	+0.12
Undeclared quantities	100.0%	-0.106	-10.56
Prints ingredient percentages	no	0.000	+0.00
Complete diet	yes	2.294	+2.29
Frozen or chilled fresh	no	0.000	+0.00
High meat (30%+ of dry matter)	no	0.707	+0.00
Low meat (under 10% of dry matter)	yes	-3.158	-3.16
High carb and low meat	no	-1.180	+0.00
Meat share × printed percentages	0.0	0.000	+0.00
Meat share × fresh	0.0	0.000	+0.00
Fresh × high meat	0.0	11.084	+0.00
Additive penalty	-4.79	0.222	-1.06
Processing multiplier	0.98	33.786	+33.11
Processing: Raw	no	-0.054	+0.00
Processing: Fresh Chilled	no	-2.354	+0.00
Processing: Fresh Frozen	no	-2.354	+0.00
Processing: Fresh Refrigerated	no	0.000	+0.00
Processing: Fresh Shelf	no	-0.672	+0.00
Processing: Dry Freeze Dried	no	6.629	+0.00
Processing: Dry Air Dried	no	6.331	+0.00
Processing: Dry Cold Pressed	no	-6.713	+0.00
Processing: Dry Baked	no	-6.713	+0.00
Processing: Dry Extruded	yes	-6.713	-6.71
Processing: Dry Semi Moist	no	-6.174	+0.00
Processing: Dry Muesli	no	-10.146	+0.00
Processing: Wet Pate	no	-0.672	+0.00
Processing: Wet Chunks	no	-0.672	+0.00

Processing-type offset: +0.02
Additives declared on label: +2 transparency bonus
Subtotal: 49.6
Final score: 50/100

Contributions are rounded to two decimals, so they may not sum exactly to the subtotal. The full coefficient table is published on the methodology page.

Nutritional: declared analysis vs reference ranges

How the declared analysis compares with FEDIAF reference ranges for puppies and growth. The label prints as-fed values; we convert to a dry-matter basis before scoring, and the bands are dry-matter ranges. Scores rise to 100 at the band midpoint: the reference is adequacy, not maximisation. Nutrients with a published upper limit taper again above it; fat is policed through calorie density rather than a direct penalty.

Scored against FEDIAF growth minima; puppy scoring is under review; Guaranteed-analysis FEDIAF score: crude minimums and maximums are bounds, not typical values; moisture (a maximum) uses the processing median where available; experimental US score.

Nutrient	As fed (label)	Dry matter (scored)	Score
Protein	27	29.8	100
Fat	15	16.6	100
Calcium	1.2	1.3	100
Phosphorus	1	1.1	100
Calcium:phosphorus ratio	1.2	1.2	100
Omega fatty acids (omega-6 and omega-3)	-	-	100
Energy (kcal/100g)	365	403.3	100

Omega fatty acids (omega-6 and omega-3): scored as the mean of its declared components (omega-6 100, omega-3 100). The FEDIAF minimum for omega-6 is linoleic acid specifically.

Scored over 7 declared nutrients (combined weight 90); undeclared nutrients do not affect the score. Moisture was not declared and was estimated at 9.5% from the food type.

Low confidence: partial analysis or moisture estimated from the food type.

This measures agreement with published reference ranges, not suitability for an individual dog. For medical conditions, follow veterinary guidance.

Transparency: what the label discloses

How much the manufacturer discloses, measured against the FEDIAF Code of Good Labelling Practice and Regulation 767/2009. Mandatory items dominate the weighting.

Item	Points
✓ Ingredient list on the label (mandatory)	10/10
✗ Printed percentages on the label (voluntary) - not on file	0/20
✗ Analytical constituents declared (mandatory) - not on file	0/15
✓ Additives declared (mandatory)	10/10
✓ Energy value declared (voluntary)	5/5
✓ Complete/complementary designation (mandatory)	5/5
✓ Feeding guidance given (mandatory)	10/10
✓ Manufacturer identity and address (mandatory)	5/10
✓ Country of manufacture stated (voluntary)	10/10
✗ Batch and date labelling (mandatory) - not on file	0/5

Capped at 60: mandatory items missing (Analytical constituents declared, Batch and date labelling).

Safety: recall history

Recall and safety-notice history, time-decayed. This dimension is shown alongside the score and never feeds the headline number.

No recalls recorded in our database.

Evidence: what the brand claims, and what supports it

The claims made on the pack and product page, checked against the declared label. We record claims as stated; "consistent" means our stored label data supports the claim, "contradicted" means it conflicts with it. Functional claims are recorded but never scored.

Claims on file; none we can check against the label

Claim	Type	Check	Substantiation
Appropriate nutrient levels to fuel larger growing bodies (on pack)	Functional	not checkable	Manufacturer assertion
Calcium and phosphorus for bone and joint development (on pack)	Functional	not checkable	Manufacturer assertion
DHA for proper brain and vision development (on pack)	Functional	not checkable	Manufacturer assertion
L-Carnitine helps convert fat to energy (on pack)	Functional	not checkable	Manufacturer assertion
K9 Strain Probiotics help support digestive and immune systems (on pack)	Functional	not checkable	Manufacturer assertion
Omega fatty acids for healthy skin and a shiny coat (on pack)	Functional	not checkable	Manufacturer assertion
Powerful antioxidants and phytonutrients from superfoods help support the immune system and a healthy lifestyle (on pack)	Functional	not checkable	Manufacturer assertion
Enhanced with superfoods and guaranteed probiotics (on pack)	Content	not checkable	Manufacturer assertion
80,000,000 colony forming units (CFU) of live, active probiotic cultures (on pack)	Content	not checkable	Manufacturer assertion
Source of DHA (docosahexaenoic acid), an omega-3 fatty acid that is important for brain and vision development in puppies (on pack)	Nutrient	not checkable	Manufacturer assertion
Pasture-Raised Lamb (on pack)	Content	not checkable	Manufacturer assertion

The full scoring method is published. See the methodology for exactly how the headline score and each dimension are calculated.

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