NutrientBoost Beef, Egg & Pea High Protein Gut Health Grain-Free Dry Dog Food for Medium & Large Dogs, 22-lb bag
Graded by The Sniff System
Solid Gold NutrientBoost is a grain-free dry dog food featuring beef, ocean fish, and salmon as its main protein sources.
This dry food offers good protein quality, with beef providing solid amino acid coverage. It also includes quality fat sources like chicken fat and marine oils, which are good for EPA and DHA. The formula adds diverse, high-bioavailability protein from dried eggs, named fish meals, and animal plasma.
The biggest watch item is the lack of an AAFCO statement, which means its nutritional completeness is unverified. There's also some legume stacking with peas and fava beans appearing in the top ingredients.
Good fit for medium and large adult dogs. Less ideal if you require an AAFCO statement for nutritional completeness.
Summary written by The Sniff System from the data above. Same rubric, same drivers, expressed in English.
Good fit for active large sporting breeds, including the Labrador Retriever, navigating weight management. Working in its favor: crude fiber (5%) helps satiety. Caloric density is not declared, with crude fiber at 5% (above the catalog median, supports satiety). The landmark 14-year Purina Lifespan Study on 48 Labrador Retrievers demonstrated that dogs fed 25% fewer calories lived a median of 1.8 years longer and delayed the onset of chronic diseases. According to the Association for Pet Obesity Prevention's 2023 survey, 59% of dogs in the United States were classified as overweight or obese by their veterinary healthcare professional, representing an estimated 55 million dogs (APOP, 2023) .
Looking at this for adult Labrador Retrievers or Labrador Retrievers with weight management ? We are building dedicated pages for these combinations.
Auto-matched from this product's measurements (ingredients, life stage, calorie density) to a breed archetype. Not a substitute for vet input on your specific dog.
Research informing this analysis
MethodologyThe Sniff System grades this product against 3 cited studies relevant to its profile. Each link opens the original source.
- Brooks et al., 2014diagnostic · protocol · satiety· cited in 5 claims
- APOP, 2023prevalence
- Raffan et al., 2016genetics
Every claim on Sniff traces to a source. If you find a citation that's wrong, outdated, or misapplied, tell us.
Middle-of-pack grade. 57/100 (C) reflects the structural fit of this formula against The Sniff System's eight scoring components. Protein quality did the heavy lifting (+19 points): Reasonable protein quality. beef delivers solid amino acid coverage. What capped it: the score can't exceed 59 because the AAFCO nutritional adequacy statement isn't disclosed on the retailer page (so our methodology can't verify the formula meets adult, growth, or all-life-stages standards). How it could climb: the brand publishing the AAFCO statement, which would lift the cap into B-band range.
Reasonable protein quality. beef delivers solid amino acid coverage.
Quality fat sources: named fat with marine oil (EPA and DHA source).
Includes egg, named fish, or organ meat for diverse high-bioavailability protein.
No AAFCO statement. Nutritional completeness unverified.
Contains high legume stacking. Multiple pulse-family ingredients in top 15. Mitigated by taurine supplementation or organ meat (natural taurine precursor) in top 10..
- Top 10% for DMB protein in dry kibbles (37.8%)
- Bottom quartile for carb quality in Solid Gold's lineup (11/16)
- Top quartile for protein quality in Solid Gold's lineup (19/27)
Computed against the rest of our catalog. Percentiles refresh on each catalog update.
Similar dog foods worth considering
Three lenses on products with formulation profiles similar to this one.

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Scores 20 points higher with a similar formulation profile.

Earthborn Holistic Great Plains Feast Bison Meal & Vegetables Grain-Free Dry Dog Food, 25-lb bag
$2.68/lb vs your seed's $3.64/lb (26% less) at a comparable score.
Surfaced from a vector similarity search across 3,491 scored dog foods. How this works.
Read why each ingredient is good or bad for dogs.
- 1protein animalbeef
Real meat. Dense in protein and iron. Some dogs are sensitive to it, but for most it's an excellent base.
Position 1: primary protein source. After cooking removes water, this may drop in proportional weight, but it anchors the recipe.
- 2protein animalocean fish meal
Position 2: co-primary protein. Two named animal proteins in the top 2 is a strong protein build.
- 3protein animalsalmon meal
Salmon cooked into a dry concentrate. Carries both protein and natural omega-3s in one ingredient. See why →
Position 3: significant protein contributor. Adds amino-acid diversity to the top of the deck.
- 4vegetablesweet potato
Complex carb with fiber and beta-carotene. Gentle on the stomach.
Position 4: meaningful whole-food inclusion. Source of vitamins, antioxidants, or natural fiber.
- 5legumepeas
Cheap protein bulk. Fine in small amounts, but when peas stack with lentils and chickpeas in the top ingredients, it's the pattern the FDA flagged in its heart-disease investigation. See why →
Position 5. Within the FDA's top-5 DCM-pattern threshold. Especially notable if multiple pulses stack here.
- 6pea starch
Refined starch from peas, mostly carbs after the protein is removed. Counts toward the legume stack the FDA examined.
Position 6. Moderate inclusion. Contributes carbohydrate and some plant protein.
- 7fatchicken fat
Despite the name, a high-quality energy source. Concentrated calories plus essential fatty acids like linoleic acid. See why →
Position 7: trace fat. Below the level that materially shifts the fat profile.
- 8fava beans
Less common pulse. Same concern as peas when stacked with other legumes.
- 9dried eggs
Whole eggs. The highest-quality protein on any ingredient label by amino acid score.
Position 9: supporting protein. Modest contribution to total protein weight.
- 10dried tomato pomace
The fiber-rich byproduct of tomato processing. Sometimes flagged unfairly. It's a real fiber source, not a filler shortcut.
Position 10: functional fiber for digestion or satiety.
- 11animal plasma
- 12othernatural flavor
Legal term for animal-derived flavoring, usually hydrolyzed liver or broth. Adds taste, says nothing about quality.
- 13spray dried animal blood cells
- 14vegetablecarrots
Real vegetable. Fiber, beta-carotene, and a small amount of antioxidant value.
Position 14: garnish-level inclusion. Marketing-prominent but minimal nutritional impact at this position.
- 15fatsalmon oil
Pure omega-3s. The thing skin-and-coat formulas are usually built around.
Position 15. Trace marine oil. Contributes some omega-3 but well below the level that drives EPA/DHA totals.
- 16vegetablepumpkin
Soluble fiber that supports stool quality. Mild and well-tolerated.
- 17mineralsalt
Sodium chloride. Required at small doses for normal physiology. Not a quality concern in standard amounts.
- 18mineralpotassium chloride
Required mineral. Sometimes used as a salt substitute. Standard inclusion in complete diets.
- 19fruitblueberries
Antioxidants, real. But the amount in any kibble is too small to do much. Mostly marketing.
- 20fruitcranberries
Often added with a urinary-tract-support marketing angle. Real cranberry compounds help in concentrate form, but kibble doses are small.
- 21supplementcholine chloride
Essential nutrient for liver and brain function. Standard inclusion in complete dog foods.
- 22mineralzinc sulfate
Inorganic zinc. Effective at AAFCO doses but less well-absorbed than chelated forms like zinc proteinate.
- 23mineralferrous sulfate
Inorganic iron. Standard mineral source. Iron proteinate is the gentler, better-absorbed premium form.
- 24mineralcopper sulfate
Inorganic copper. Standard, effective at small doses. Premium formulas tend to use copper proteinate instead.
- 25mineralmanganese sulfate
Inorganic manganese. Functional but less well-absorbed than the chelated proteinate form.
Showing first 25 of 34. Position 1-5 has the largest weight in the recipe.
22 of 25 ingredients have a curated note. Coverage grows over time.